@mastersthesis {5355,
	title = {Contribution {\`a} l\&$\#$39;{\'e}tude des propri{\'e}t{\'e}s des films minces de ZnO},
	year = {2017},
	author = {Boukhenoufa Noureddine}
}
@mastersthesis {5352,
	title = {Etude et r{\'e}alisation d\&rsquo;un onduleur monophas{\'e} multiniveaux {\`a} commande num{\'e}rique},
	year = {2017},
	author = {Oussmani, salah eddine}
}
@mastersthesis {5351,
	title = {Etude de l\&rsquo;effet des convertisseurs statiques sur le r{\'e}seau {\'e}lectrique},
	year = {2017},
	author = {Ferfari, Fouad}
}
@mastersthesis {5347,
	title = {R{\'e}alisation d\&rsquo;un syst{\`e}me {\'e}lectromagn{\'e}tique d\&rsquo;un tri de d{\'e}chet},
	year = {2017},
	author = {Kermadi Mounir}
}
@mastersthesis {5338,
	title = {Caract{\'e}risation d\&$\#$39;un TMOS par la technique CV sous Silvaco},
	year = {2017},
	author = {Gas Hani}
}
@mastersthesis {5337,
	title = {Etude et simulation de l\&$\#$39;effet de la couche tampon sur les performances des cellules solaires {\`a} base de CIGS},
	year = {2017},
	author = {Benhamida Loubna}
}
@mastersthesis {5336,
	title = {Mise {\`a} niveau d\&$\#$39;un banc optique de mesure de la r{\'e}ponse spectrale},
	year = {2017},
	author = {Saidi Abdelali and Saidi Mohamed}
}
@mastersthesis {5335,
	title = {Analyse et simulation des performances des cellules solaires en couches minces {\`a} base de CZTS},
	year = {2017},
	author = {Bouchama Besma}
}
@mastersthesis {5334,
	title = {Caract{\'e}risation structurale et comortement magn{\'e}tique des multicouches FM/AFM en fonction de la temp{\'e}rature},
	year = {2017},
	author = {Smaili Fatiha}
}
@mastersthesis {5332,
	title = {Etude et r{\'e}alisation d\&$\#$39;une photopile {\`a} base d\&$\#$39;une structure MIS},
	year = {2017},
	author = {Drid Chaima}
}
@mastersthesis {5323,
	title = {Gestion d\&$\#$39;eau dans une habitation},
	year = {2017},
	author = {Djouima Houssena}
}
@mastersthesis {5322,
	title = {Mod{\'e}lisation des effets non-lin{\'e}aires  dans les structures pi{\'e}zo{\'e}lectriques},
	year = {2017},
	author = {Chaabane Soumali}
}
@mastersthesis {5321,
	title = {Estimation  des Filtres de Restauration des Signaux en Communications Num{\'e}riques  },
	year = {2017},
	author = {Zerdoumi  Zohra}
}
@mastersthesis {5319,
	title = {Application de nouvelles m{\'e}thodes de mod{\'e}lisation et d\&rsquo;optimisation dans l\&rsquo;{\'e}tude des antennes microbandes et des syst{\`e}mes multi-antennaires pour techniques de diversit{\'e} et MIMO},
	year = {2017},
	author = {Hamdiken Nazih}
}
@mastersthesis {5318,
	title = {Etude d\&rsquo;un syst{\`e}me multi-antennaires pour les communications mobiles},
	year = {2017},
	author = {Addaci Rafik}
}
@mastersthesis {5310,
	title = {Mod{\'e}lisation des antennes microbandes rectangulaires par le mod{\`e}le de cavit{\'e} et les r{\'e}seaux de neurones artificiels},
	year = {2017},
	author = {Bouzid Riadh}
}
@mastersthesis {5308,
	title = {et r{\'e}alisation d\&rsquo;un syst{\`e}me de transmission {\`a} base de fibre optique},
	year = {2017},
	author = {Nya Turkia and Abed Basema}
}
@mastersthesis {5305,
	title = {{\'E}tude et R{\'e}alisation d\&rsquo;un Syst{\`e}me de Transmission Radio- Fr{\'e}quence},
	year = {2017},
	author = {KROUCHI, Mohamed and HOCINE, Mohamed-Ilyes}
}
@mastersthesis {5304,
	title = {Conception et caract{\'e}risation d\&$\#$39;antenne imprim{\'e}e ULB},
	year = {2017},
	author = {Ouniss Hanine}
}
@mastersthesis {5294,
	title = {Mod{\'e}lisation et Optimisation de l\&rsquo;Effet de l\&rsquo;Auto-Echauffement des Composants Electroniques de Puissance},
	year = {2017},
	author = {MESSAADI Lotfi}
}
@mastersthesis {5293,
	title = {Mod{\'e}lisation d\&$\#$39;un Capteur Electromagn{\'e}tique.},
	year = {2017},
	author = {Meddour Fay{\c c}al}
}
@mastersthesis {5276,
	title = {Conception et r{\'e}alisation d\&$\#$39;un onduleur pour {\'e}nergie solaire},
	year = {2017},
	author = {Benammar Farouk}
}
@mastersthesis {5274,
	title = {Conception d\&$\#$39;un modulateur sigma delta temps continu en technologie CMOS},
	year = {2017},
	author = {Zerrad Hana}
}
@mastersthesis {5273,
	title = {Conception et layout d\&$\#$39;un convertisseur DC/DC},
	year = {2017},
	author = {Deghdagh Rabie}
}
@proceedings {4661,
	title = {Etude, mod{\'e}lisation et simulation des propri{\'e}t{\'e}s magn{\'e}tiques par le mod{\`e}le Jiles-Atherton d\&rsquo;une couche ferromagn{\'e}tique d{\'e}pos{\'e}e par pulv{\'e}risation cathodique magn{\'e}tron RF},
	journal = {NUMELEC 2017},
	year = {2017},
	url = {https://docplayer.fr/57389396-9th-european-conference-on-numerical-methods-in-electromagnetics-numelec-2017.html},
	author = {Bendjerad Adel}
}
@proceedings {4656,
	title = {Boron and Phosphorus Diffusion in MOS Transistors: Simulation and analyze in both 2D and 3D},
	journal = {International Conference on Phosphorus, Boron and Silicon 2017},
	year = {2017},
	url = {http://premc.org/doc/PBSI2017/PBSI2017_Book_Of_Abstracts.pdf},
	author = {Naima Guenifi}
}
@proceedings {4655,
	title = {Characterizing Slow state Near Si-SiO2 in MOS structure},
	journal = {International Conference on Phosphorus, Boron and Silicon 2017},
	year = {2017},
	url = {http://premc.org/doc/PBSI2017/PBSI2017_Book_Of_Abstracts.pdf},
	author = {Naima Guenifi}
}
@proceedings {4654,
	title = {An algorithm For Boron diffusion in MOS transistor Using SILVACO ATHENA and Matlab},
	journal = {International Conference on Phosphorus, Boron and Silicon 2017},
	year = {2017},
	url = {http://premc.org/doc/PBSI2017/PBSI2017_Book_Of_Abstracts.pdf},
	author = {Naima Guenifi}
}
@proceedings {4650,
	title = {Enhanced Performance of ZnO/c-Si Solar cell Using InterfaceEngineering with Grooves Morphology},
	journal = {6th International Conference on Systems and Control},
	year = {2017},
	url = {DOI: 10.1109/ICoSC.2017.7958747},
	author = {Ferhati Hichem}
}
@proceedings {4648,
	title = {Modeling and investigation of smart capacitive pressure sensor using artificial neural networks},
	journal = {6th International Conference on Systems and Control},
	year = {2017},
	url = {https://ieeexplore.ieee.org/document/7958746},
	author = {F, Menacer}
}
@proceedings {4646,
	title = {Cellules photovolta{\"\i}ques : De la couche active au panneau solaire photovolta{\"\i}que},
	journal = {Journ{\'e}es portes ouvertes sur la Facult{\'e} des Sciences Exactes (JFSE 2017)},
	year = {2017},
	url = {http://ceur-ws.org/Vol-1849/paper1.pdf},
	author = {Benhaya Abdelhamid}
}
@proceedings {4641,
	title = {Thermal stability investigation of power GaN HEMT includingself-heating effects},
	journal = {6th International Conference on Systems and Control,},
	year = {2017},
	address = {Batna, Alg{\'e}rie},
	url = {https://ieeexplore.ieee.org/document/7958745},
	author = {Aouf, Anouaressadate and Fay{\c c}al Djeffal and Fouzi Douak}
}
@proceedings {4636,
	title = {Mobile robot trajectory tracking using terminal sliding  mode control},
	journal = {6th IEEE International conference on  Systems and Control (ICSC{\textquoteright}2017)},
	year = {2017},
	author = {Benaziza Walid}
}
@proceedings {4634,
	title = {Trajectory Tracking and VFH Obstacle Avoidance for Differential Drive Mobile Robot},
	journal = {International Conference on Automatic control, Telecommunications and Signals (ICATS{\textquoteright}17)},
	year = {2017},
	author = {S.E. Ghamri}
}
@conference {4630,
	title = {Using Probabilistic Neural Network (PNN) For Extracting Acoustic Microwaves (BAW) In Piezoelectric Material},
	booktitle = {International Conference on Artificial Intelligence in Renewable Energetic Systems- 22-24 October 2017, Tipaza- ALGERIA},
	year = {2017},
	abstract = {
	I



	n this paper, we propose a new method for Bulk waves detection of an acoustic microwave signal during the propagation of acoustic microwaves in a piezoelectric substrate (Lithium Niobate LiNbO3). We have used the classification by probabilistic neural network (PNN) as a means of numerical analysis in which we classify all the values of the real part and the imaginary part of the coefficient attenuation with the acoustic velocity in order to build a model from which we note the Bulk waves easily. These singularities inform us of presence of Bulk waves in piezoelectric materials.



	By which we obtain accurate values for each of the coefficient attenuation and acoustic velocity for Bulk waves. This study will be very interesting in modeling and realization of acoustic microwaves devices (ultrasound) based on the propagation of acoustic microwaves.

},
	url = {https://link.springer.com/chapter/10.1007/978-3-319-73192-6_32},
	author = {Hafdaoui, Hichem and Mehadjebia, Cherifa and Benatia, Djamel}
}
@proceedings {4629,
	title = {Comparative Between (LiNbO3) and (LiTaO3) in Detecting Acoustics Microwaves (BAW) Using Probabilistic Neural Network (PNN)},
	journal = {International Conference on Electronics and New Technologies- 14-15 november 2017},
	year = {2017},
	address = {M{\textquoteright}Sila, Algeria},
	abstract = {
	Our work is mainly about detecting BAW (Bulk acoustic waves), where we compared between Lithium Niobate (LiNbO3) and Lithium Tantalate (LiTaO3) ,during the propagation of acoustic microwaves in a piezoelectric substrate. In this paper, We have used the classification by Probabilistic Neural Network (PNN) as a means of numerical analysis in which we classify all the values of the real part and the imaginary part of the coefficient



	attenuation with the acoustic velocity for conclude whichever is the best in utilization for generating Bulk acoustic waves.This study will be very interesting in modeling and realization of acoustic microwaves devices (ultrasound) based on the propagation of acoustic microwaves.

},
	url = {http://virtuelcampus.univ-msila.dz/lass/wp-content/uploads/2018/02/Proceeding-INCENT2017.pdf},
	author = {Hafdaoui, Hichem and Benatia, Djamel}
}
@proceedings {4626,
	title = {Neurocomputational model of annular-ring microstrip antenna with air gap layer},
	journal = {2nd International Conference on Automatic Control, Telecommunication \& Signals (ICATS{\textquoteright}17)},
	year = {2017},
	url = {http://www.icats.ws/wp-content/uploads/2017/12/Program-icats17-final2.pdf},
	author = {Gadda Abdelkrim}
}
@proceedings {4625,
	title = {Resonant characteristics of a superconducting thin film resonator using the two-fluid method and artificial neural networks},
	journal = {2nd International Conference on Automatic Control, Telecommunication \& Signals (ICATS{\textquoteright}17)},
	year = {2017},
	url = {http://www.icats.ws/wp-content/uploads/2017/12/Program-icats17-final2.pdf},
	author = {Gadda Abdelkrim}
}
@proceedings {4624,
	title = {CAD cavity model analysis of high Tc superconducting rectangular patch printed on anisotropic substrates},
	journal = {International Conference on Electrical Engineering - Boumerdes (ICEE-B)},
	year = {2017},
	url = {https://ieeexplore.ieee.org/abstract/document/8192168},
	author = {Mahamdi Ahmed}
}
@article {4099,
	title = {An original way to obtain porous Zn(1\&ndash;x)MgxO thin films by spray pyrolysis technique, ISSN 15608034},
	journal = {Semiconductor Physics, Quantum Electronics \& Optoelectronics},
	volume = {volume 20},
	number = {N{\textdegree}1},
	year = {2017},
	pages = {pp 55-63},
	abstract = {Zn(1{\textendash}x)MgxO thin films with various concentrations of magnesium were deposited using the spray pyrolysis method. The transmittance spectra recorded for all films exhibit maxima exceeding 90\%. The band gap energy of the films with wurtzite structure increases from 3.22 up to 3.60 eV by incorporating Mg into ZnO. However, when the atomic ratio of Mg exceeded 0.4, a second crystalline phase (assigned to cubic MgO) became discernable in XRD patterns, a compressive strain was observed in the wurtzite lattice, and crystallite sizes decreased significantly. In accordance with these observations, finer grains with a pronounced columnar growth were observed in 3D AFM representations and the surface roughness decreases significantly. Finally, selective etching in water yields to porous films with a great surface-to-volume ratio, a lower refractive index and a better light transmission. These porous films with tunable band gap seem to be excellent candidates to various interesting applications.},
	url = {https://pdfs.semanticscholar.org/e4f9/8d665c11b176bac026c444ba787422fcbb08.pdf?_ga=2.192392546.932043383.1582016558-1814151887.1582016558},
	author = {Mahdjoub Abdelhakim and Hafid Abdelaali and Aida Mohammed Salah and Benhaya Abdelhamid}
}
@article {4098,
	title = {Modeling of magnetic properties (Cr/NiO/Ni) based multi-layers deposited by magnetron sputtering using Preisach model, ISSN 2495-3911},
	journal = {Materials and Devices},
	volume = {2},
	number = {1~},
	year = {2017},
	pages = {0310},
	abstract = {
	: In the present work, thin films of Cr/NiO/Ni are deposited on glass substrates using RF magnetron sputtering technique. The uniformity and homogeneity of the prepared films were controlled by varying the power of the source, the targetsubstrate distance and the pressure of the plasma gas which is argon. In order to test the Preisach Model, we carried out measurements according to two directions: parallel and perpendicular to the substrate plane using a Vibrating Sample Magnetometer at room temperature. Good agreement has been obtained by comparing the experimental hysteresis loops to the ones determined using Preisach model. We conclude that this model is powerful in predicting the magnetic properties of multilayer systems.

},
	url = {https://hal.archives-ouvertes.fr/hal-01598150/document},
	author = {Bendjerad, Adel and Benhaya, Abdelhamid and Boukhtache Sebti and Zergoug, M and Benyahia, Kaddour}
}
@article {4092,
	title = {Improved Reliability Performance of Junctionless Nanoscale DG MOSFET with Graded Channel Doping Engineering, ISSN 1862-6351},
	journal = {Physica Status Solidi {\textcopyright}},
	volume = {14},
	year = {2017},
	pages = {146-152},
	abstract = {
	In the last few years, an accelerated trend toward the miniaturization of nanoscale circuits has been recorded. In fact, this has been reflected by numerous enhancements at different levels of multi-gate structures such as the channel body or the gate material. Our aim in this work is to investigate the reliability performance of junctionless DG MOSFET including graded channel aspect. The behavior of the considered device is analyzed numerically using ATLAS-2D simulator, where degradation phenomena are accounted for in the model. The variation of some analog/RF criteria namely the transconductance and cut-off frequency are established in terms of the channel length and traps density. The obtained responses indicate the superior immunity of the graded channel device against traps-induced degradation in comparison to the conventional structure. Thus, this work can offer more insights regarding the benefit of adopting the channel doping engineering for future nanoscale electronic applications.

},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/pssc.201700147},
	author = {Toufik Bentrcia and Fay{\c c}al Djeffal and Arar,  Djemai and Elasaad Chebaki}
}
@article {4091,
	title = {Efficiency Enhancement of a-Si:H/c-Si-Based Radial Solar Cell by Optimizing the Geometrical and Electrical Parameters, ISSN 1862-6351},
	journal = {Physica Status Solidi {\textcopyright}},
	volume = {14},
	number = {10},
	year = {2017},
	abstract = {
	In this paper, a new particle swarm optimization-based approach is proposed for the geometrical optimization of the nanowires solar cells to achieve improved optical performance. The proposed hybrid approach combines the 3-D numerical analysis using accurate solutions of Maxwell{\textquoteright}s equations and metaheuristic investigation to boost the solar cell total absorbance efficiency. Our purpose resides on modulating the electric field and increasing the light trapping capability by optimizing the radial solar cell geometrical parameters. Moreover, a comprehensive study of vertical core-shell nanowire arrays optical parameters such as the integral absorption, reflection, and total absorbance efficiency is carried out, in order to reveal the optimized radial solar cells optical performance for low-cost photovoltaic applications. We find that the proposed hybrid approach plays a crucial role in improving the nanowires solar cells optical performance, where the optimized design exhibits superior total absorbance efficiency and lower total reflection in comparison with those provided by the conventional planar design. The obtained results make the proposed global optimization approach valuable for providing high-efficiency nanowires solar cells.

},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/pssc.201700146},
	author = {Hichem Ferhati and Fay{\c c}al Djeffal and Arar,  Djemai and Zohir Dibi}
}
@article {4078,
	title = {RF magnetron sputtering deposition of NiO/Ni bilayer and approach of the Magnetic behavior using the Preisach model, ISSN / e-ISSN 0304-8853 / 1873-4766},
	journal = {Journal of Magnetism and Magnetic Materials},
	volume = {428},
	year = {2017},
	pages = {377-381},
	abstract = {
	Bilayer of nickel and nickel oxide were deposited on glass substrates using RF\&nbsp;magnetron sputtering\&nbsp;technique. The\&nbsp;magnetic properties\&nbsp;of the prepared thin films were carried out at room temperature in both parallel and perpendicular\&nbsp;magnetic field\&nbsp;to the sample. The Preisach model was applied to provide a\&nbsp;mathematical model\&nbsp;of the magnetic\&nbsp;hysteresis\&nbsp;loop in the case of parallel geometry, along the easy axis of the bi-layer NiO / Ni. Good agreement was obtained between the theoretical and experimental results.




},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0304885316333844},
	author = {Bendjerad, Adel and Boukhtache Sebti and Benhaya, Abdelhamid and Abdelilah, Lahmar and Zergoug, M and Luneau, Dominique}
}
@article {4064,
	title = {Effect of annealing time on the performance of tin oxide thin films ultraviolet photodetectors, ISSN 0040-6090},
	journal = {Thin Solid Films},
	volume = {Volume 623},
	year = {2017},
	pages = {pp 1{\textendash}7},
	abstract = {Tin oxide SnO2 thin films were deposited by sol gel method on glass substrates. The as-deposited thin films were then annealed at 550\&nbsp;{\textdegree}C for different time durations (15, 30, 60 and 120\&nbsp;min). Structural and morphological investigations were carried out on all samples by X-ray diffraction method and atomic force microscopy while optical properties were obtained with UV{\textendash}Visible spectrophotometer. XRD patterns reveals that the samples possess polycrystalline with rutile structure of SnO2 without any secondary phase. AFM image showed that SnO2 thin films having a smooth surface morphology. The optical properties in the visible range showed that the deposited layers have a high transmission factor. The optical band gap energy varies in the range of 3.61{\textendash}3.73\&nbsp;eV. Finally, ultraviolet (UV) detection properties of samples as an active layer in UV photodetector devices were investigated. Current-voltage characteristics of the SnO2 thin films are performed under dark and light environment, which show low dark current of 22.9\&nbsp;nA with a linear behavior and high current ration\&nbsp;\&gt;\&nbsp;104 under 2\&nbsp;V applied voltage and 120\&nbsp;min as annealing time. Whereas, high photocurrent is observed for samples annealing for 30\&nbsp;min. Moreover, the transient photoresponse of the fabricated device is reported under different annealing times.},
	url = {https://www.sciencedirect.com/science/article/pii/S0040609016308495},
	author = {Rechem Djamil and Khial Aicha and Souifi Abdelkader and Djeffal Fay{\c c}al}
}
@article {4063,
	title = {Enhancement of the absorbance figure of merit in amorphous-silicon pin solar cell by using optimized intermediate metallic layers, ISSN 0030-4026},
	journal = {Optik},
	volume = {Volume 130},
	year = {2017},
	pages = {pp 473-480},
	abstract = {
	
		In this paper, a new approach based on optimized intermediate metallic thin film engineering aspect is proposed to improve the absorption behavior for amorphous-Silicon (a-Si:H) p-i-n Solar Cell. The overall solar cell optical performance comparison between the conventional design and a proposed design including three different intermediate metallic layers (Au, Ag and Ti) is carried out numerically using accurate solutions of Maxwell{\textquoteright}s equations. It is found that the proposed design with intermediate metallic sub-layers{\textquoteright} engineering provides superior integral absorption in comparison to that offered by the conventional structure. Therefore, the introduced intermediate metallic layers play a paramount role in increasing the light absorbance and modulate the electric field in the intrinsic region, where more light can be absorbed again by a-Si in the near infrared and infrared-regions using titanium as intermediate metallic layers. Furthermore, a hybrid computation based on combined numerical- metaheuristic modeling approach is proposed to boost the solar cell performance by optimizing the intermediate metallic layers. The obtained results indicate the advantage of the proposed design methodology in improving the amorphous solar cell performances.
	

},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0030402616312591},
	author = {Ferhati Hichem and Djeffal Fay{\c c}al and Srairi Fawzi}
}
@article {4062,
	title = {Efficiency increase of hybrid organic/inorganic solar cells with optimized interface grating morphology for improved light trapping, ISSN 0030-4026},
	journal = {Optik},
	volume = {Volume 130},
	year = {2017},
	pages = {pp 1092-1098},
	abstract = {In this paper, a new design methodology by optimizing the silicon/organic interface morphology is proposed to achieve superior optical behavior for pentacene-based organic/inorganic solar cells. Our purpose dwells on reducing the refracting light in the silicon and improves the absorbance behavior in the solar cell. In this context, a numerical model based on accurate solutions of Maxwell{\textquoteright}s equations is developed in order to study the impact of both interface texturization morphologies (triangular and grooves) on the optical absorbance and electrical performance. It is found that the proposed design morphology has profound implication on modulating the electric field, which increases the light trapping capability. It is also confirmed that the overall electrical performance is significantly improved as compared to the conventional organic/inorganic solar cells, where the proposed design exhibits superior integral absorption behavior and large interface area. Moreover, a new hybrid approach by combining of the numerical and metaheuristic models is developed to boost the device performance by optimizing the interface morphology. The obtained results make the proposed design methodology valuable for providing high-efficiency organic/inorganic solar cells.},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0030402616314401},
	author = {Srairi Fawzi and Djeffal Fay{\c c}al and Ferhati Hichem}
}
@article {4061,
	title = {Novel high-performance SOI junctionless FET-based phototransistor using channel doping engineering: Numerical investigation and sensitivity analysis, ISSN 0030-4026},
	journal = {Optik},
	volume = {Volume 138},
	year = {2017},
	pages = {pp 119{\textendash}126},
	abstract = {In this paper, graded channel doping (GCD) and junctionless paradigms are proposed as a new ways to improve the optical controlled field effect transistor (OCFET) and bridging the gap between the high responsivity and ultra-low power consumption. A careful mechanism study based on numerical investigation and a performance comparison between the proposed structure and both the conventional inversion mode (IM-OCFET) and the junctionless (JL-OCFET) designs is presented. It is found that the graded channel doping feature can efficiently improve the overall device optical and electrical performances. Moreover, the proposed design exhibits superior device figures of merit (FoMs) and provides ultra-sensitivity behavior as compared to both the conventional IM-OCFET and the JL-OCFET counterparts. Our investigation reveals also the outstanding capability of the proposed structure for offering the weak signal detection advantage that demonstrates the unique property of our phototransistor with GCD aspect. These characteristics not only underline the excellent switching behavior of the proposed design but also demonstrate the ability for overcoming the trade-off between the low cost and readily fabrication process in addition to ultrasensitive aspect with low power consumption. This makes the proposed GCD-JL-OCFET a potential alternative for developing low power communication systems.},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0030402617303376},
	author = {Ferhati Hichem and Djeffal Fay{\c c}al}
}
@article {4060,
	title = {Planar junctionless phototransistor: A potential high-performance and low-cost device for optical-communications, ISSN / e-ISSN  0030-3992 / 1879-2545},
	journal = {Optics \& Laser Technology},
	volume = {Volume 97},
	year = {2017},
	pages = {pp 29-35},
	abstract = {In this paper, a new junctionless optical controlled field effect transistor (JL-OCFET) and its comprehensive theoretical model is proposed to achieve high optical performance and low cost fabrication process. Exhaustive study of the device characteristics and comparison between the proposed junctionless design and the conventional inversion mode structure (IM-OCFET) for similar dimensions are performed. Our investigation reveals that the proposed design exhibits an outstanding capability to be an alternative to the IM-OCFET due to the high performance and the weak signal detection benefit offered by this design. Moreover, the developed analytical expressions are exploited to formulate the objective functions to optimize the device performance using Genetic Algorithms (GAs) approach. The optimized JL-OCFET not only demonstrates good performance in terms of derived drain current and responsivity, but also exhibits superior signal to noise ratio, low power consumption, high-sensitivity, high ION/IOFF ratio and high-detectivity as compared to the conventional IM-OCFET counterpart. These characteristics make the optimized JL-OCFET potentially suitable for developing low cost and ultrasensitive photodetectors for high-performance and low cost inter-chips data communication applications.},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0030399217301342},
	author = {Ferhati Hichem and Djeffal Fay{\c c}al}
}
@article {4059,
	title = {Role of metal layer in improving the UV-photodetector performance of TiO2/Metal/TiO2/Si structure},
	journal = {Journal of Luminescence},
	volume = {191},
	year = {2017},
	pages = {117-121},
	abstract = {In this paper, a new metallic thin film engineering aspect is proposed to achieve superior absorption for TiO2/Metal/TiO2 on Silicon substrate UV-based photodetectors (PDs). The overall device optical performance comparison with three dissimilar metallic layers (Au, Ti, and Ag) is performed numerically using accurate solutions of Maxwell׳s equations. A comprehensive study of the device optical parameters such as the integral absorption, reflection, and rejection ratio is carried out, in order to reveal the device optical performance for UV optical interconnects and environment monitoring applications. We find that the optical performance are considerably improved as compared to the conventional design, where the proposed design offers superior integral absorption and lower total reflection with an acceptable rejection ratio in comparison with those provided by the conventional one. These improvements suggest the opportunity for optimizing the proposed design using particle swarm optimization (PSO) approach for achieving higher optical performance, where excellent capability is recorded in enhancing the device optical behavior. The obtained results make the prop sed device very efficient for compatible CMOS modern technology.},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0022231316308080},
	author = {Hichem Ferhati and Fay{\c c}al Djeffal and Arar,  Djemai and Zohir Dibi}
}
@article {4058,
	title = {A Kriging framework for the efficient exploitation of the nanoscale junctioless DG MOSFETs including source/drain extensions and hot carrier effect},
	journal = {materials-today},
	volume = {4},
	number = { 7},
	year = {2017},
	pages = {6930-6937},
	abstract = {
	
		
			
				Recently, the Junctionless Double Gate MOSFET with source/drain extensions has proved competitive performance measures due to the reduction of the series resistance between the metal contacts and source/drain regions. However, the precise modeling of different response functions is still an important issue especially at nanoscale level because of the inclusion of complex phenomena such as quantum transport mechanisms and hot carrier degradation effect. In this perspective, our aim in the presented work is to investigate the efficiency of a novel approach based on Kriging metamodeling and multi-objective particle swarm optimization for the exploitation of the considered device in terms of some analog/RF performances. Data generated by ATLAS-2D simulator, are used to establish Kriging metamodels for the Gain and Transconductance Generation Factor. It is highlighted that the obtained models can be used accurately in a multi-objective context to offer several Pareto optimal configurations. As a result, a wide range of biasing configurations is available to the designer depending on imposed constraints.
			
		
	

},
	url = {https://www.sciencedirect.com/science/article/pii/S2214785317312956},
	author = {Toufik Bentrcia and Fay{\c c}al Djeffal and Elasaad Chebaki and Arar,  Djemai}
}
@article {4057,
	title = {Improved ZnO/glass thin film UV photodetector performance based on introduction of intermediate metallic sub-layers, ISSN / e-ISSN 1369-7021 / 1873-4103},
	journal = {materials-today},
	volume = {Volume 4},
	number = { Issue 7},
	year = {2017},
	pages = {pp  6930-6937},
	abstract = {In this paper, new multilayer design based on ZnO/Ag/ZnO structure is proposed as a new way to achieve UV-based photodetector (PD) with superior optical behavior. Our purpose resides on reducing the refracting light and achieving an effective absorption in the Ag metallic sub-layers. New numerical model based on accurate solutions of Maxwell{\textquoteright}s equations is developed in order to elucidate the impact of the metallic sub-layers on the UV-PD optical performance. An overall analysis regarding the optical parameters such as the integral absorption and the total reflection is conducted. It is found that the metallic sub-layers have profound implications on modulating the electric field in the structure and facilitating photon forward scattering in the ZnO sub-layers which led to better optical behavior. Moreover, Particle Swarm Optimization (PSO) approach is proposed as a metaheuristic technique to reach effectiveness absorption through carefully adjusting the Ag and ZnO sub-layers thickness. It is confirmed that the optimized design can provide superior optical performance as compared to the conventional counterpart, where the optimized multilayer design exhibits an enhancement of 60\% in the integral absorption over ZnO-based PD. The obtained results make the proposed multilayer design efficient for providing high performance PDs for communication applications.},
	url = {https://www.sciencedirect.com/science/article/pii/S221478531731310X},
	author = {Ferhati Hichem and Djeffal Fay{\c c}al}
}
@article {4056,
	title = {Role of non-uniform channel doping in improving the nanoscale JL DG MOSFET reliability against the self-heating effects},
	journal = {Superlattices and Microstructures},
	volume = {Volume 109},
	year = {2017},
	pages = {pp 869-879},
	abstract = {In this paper, a new hybrid approach by combining numerical investigation and Support Vector Machines (SVMs) classifier is proposed to study the thermoelectric performance of nanoscale Double Gate Junctionless DG JL MOSFET. In this context, a new Figure\&nbsp;of Merit (FoM) parameter which combines both electrical and reliability characteristics is proposed. Moreover, the impact of Gaussian channel doping profile (GCD) in enhancing the DG JL MOSFET reliability against the self-heating effects (SHEs) is presented. The proposed design thermal stability and electrical characteristics are investigated and compared with those of the conventional structure in order to reveal the device performance including SHEs. It is found that the amended channel doping has a profound implication in improving both the device electrical performance and the reliability against the undesired self-heating and short channel effects (SCEs). Furthermore, the transistor thermal behavior analysis involves classification of the device performance by taking into account the device reliability. For this purpose, SVMs are adopted for supervised classification in order to identify the most favorable design configurations associated with suppressed SHEs and improved electrical performance. We find that the proposed design methodology has succeeded in selecting the better designs that offer superior reliability against the SHEs. The obtained results suggest the possibility for bridging the gap between high electrical performances with better immunity to the SHEs.},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S074960361731008X},
	author = {Hichem Ferhati and Fouzi Douak and Fay{\c c}al Djeffal}
}
@article {4055,
	title = {A novel high-performance self-powered ultraviolet photodetector: Concept, analytical modeling and analysis, ISSN 0749-6036},
	journal = {Superlattices and Microstructures},
	volume = {Volume112},
	year = {2017},
	pages = {pp 480-492},
	abstract = {In this paper, a new MSM-UV-photodetector (PD) based on dual wide band-gap material (DM) engineering aspect is proposed to achieve high-performance self-powered device. Comprehensive analytical models for the proposed sensor photocurrent and the device properties are developed incorporating the impact of DM aspect on the device photoelectrical behavior. The obtained results are validated with the numerical data using commercial TCAD software. Our investigation demonstrates that the adopted design amendment modulates the electric field in the device, which provides the possibility to drive appropriate photo-generated carriers without an external applied voltage. This phenomenon suggests achieving the dual role of effective carriers{\textquoteright} separation and an efficient reduce of the dark current. Moreover, a new hybrid approach based on analytical modeling and Particle Swarm Optimization (PSO) is proposed to achieve improved photoelectric behavior at zero bias that can ensure favorable self-powered MSM-based UV-PD. It is found that the proposed design methodology has succeeded in identifying the optimized design that offers a self-powered device with high-responsivity (98\&nbsp;mA/W) and superior ION/IOFF ratio (480\&nbsp;dB). These results make the optimized MSM-UV-DM-PD suitable for providing low cost self-powered devices for high-performance optical communication and monitoring applications.},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0749603617320839},
	author = {Ferhati Hichem and Djeffal Fay{\c c}al}
}
@article {4016,
	title = {Efficient CAD Model to Analysis of High Tc Superconducting Circular Microstrip Antenna on Anisotropic Substrates. Advanced Electromagnetics},
	journal = {ADVANCED ELECTROMAGNETICS},
	volume = {6},
	number = {2},
	year = {2017},
	pages = {40-45},
	abstract = {
	In this paper, an electromagnetic approach based on cavity model in conjunction with electromagnetic knowledge was developed. The cavity model combined with London{\textquoteright}s equations and the Gorter-Casimir two-fluid model has been improved to investigate the resonant characteristics of high Tc superconducting circular microstrip patch in the case where the patch is printed on uniaxially anisotropic substrate materials.\&nbsp; Merits of our extended model include low computational cost and mathematical simplify. The numerical simulation of this modeling shows excellent agreement with experimental results available in the literature. Finally, numerical results for the dielectric anisotropic substrates effects on the operating frequencies for the case of superconducting circular patch are also presented.

},
	url = {http://www.aemjournal.org/index.php/AEM/article/view/446},
	author = {Bedra, Sami and Bedra , Randa and Benkouda , Siham and Fortaki , Tarek}
}
@article {4013,
	title = {Superstrate loading effects on the resonant characteristics of high Tc superconducting circular patch printed on anisotropic materials},
	journal = {Physica C: Superconductivity and Its Applications},
	volume = {543},
	year = {2017},
	pages = {1-7},
	abstract = {
	In this paper, the effects of both anisotropies in the substrate and superstrate loading on the resonant frequency and bandwidth of high-Tc superconducting circular microstrip patch in a substrate-superstrate configuration are investigated. A rigorous analysis is performed using a dyadic Galerkin{\textquoteright}s method in the vector Hankel transform domain. Galerkin{\textquoteright}s procedure is employed in the spectral domain where the TM and TE modes of the cylindrical cavity with magnetic side walls are used in the expansion of the disk current. The effect of the superconductivity of the patch is taken into account using the concept of the complex resistive boundary condition. London{\textquoteright}s equations and the two-fluid model of Gorter and Casimir are used in the calculation of the complex surface impedance of the superconducting circular disc. The accuracy of the analysis is tested by comparing the computed results with previously published data for several anisotropic substrate-superstrate materials. Good agreement is found among all sets of results. The numerical results obtained show that important errors can be made in the computation of the resonant frequencies and bandwidths of the superconducting resonators when substrate dielectric anisotropy, and/or superstrate anisotropy are ignored. Other theoretical results obtained show that the superconducting circular microstrip patch on anisotropic substrate-superstrate with properly selected permittivity values along the optical and the non-optical axes combined with optimally chosen structural parameters is more advantageous than the one on isotropic substrate-superstrate by exhibiting wider bandwidth characteristic.

},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0921453417304082},
	author = {Bedra, Sami and Bedra , Randa and Benkouda , Siham and Fortaki , Tarek}
}
@article {4012,
	title = {An efficient study of circular microstrip antenna on suspended and composite substrates, e-ISSN 1572-8137},
	journal = {Journal of Computational Electronics},
	volume = {Volume 16},
	number = {N{\textdegree} 3},
	year = {2017},
	pages = {pp 922-2017},
	abstract = {In this paper, an efficient full-wave analysis of a circular microstrip patch printed on suspended and composite substrates is performed using a dyadic Green{\textquoteright}s function formulation. Galerkin{\textquoteright}s technique is used in the resolution of the integral equation of the electric field. The TM set of modes issued, from the magnetic wall cavity model, are used to expand the unknown currents on the circular patch. The radiation patterns are expressed regarding the transforms of the currents. The convergence of the method is proven by calculating the resonant frequencies, half-power bandwidths, and quality factors for several configurations. The computed results are found to be in excellent agreement with those observed in the literature. The numerical results obtained show that the bandwidth increases with the increase in the thickness of the suspended or composite substrates, especially for low permittivity of the second layer. Also, it is demonstrated that the resonant frequencies of the circular microstrip patch on suspended and composite substrates can be adjusted to obtain the maximum operating frequency of the antenna. Finally, the effect of the presence of the second layer under the circular patch on the radiation patterns is also investigated.},
	url = {https://link.springer.com/article/10.1007/s10825-017-1012-9},
	author = {Bedra Sami and Benkouda Siham and Fortaki Tarek}
}
@article {4011,
	title = {Neurospectral computation for the resonant characteristics of microstrip patch antenna printed on uniaxially anisotropic substrates},
	journal = {International Journal of Microwave and Wireless Technologies},
	volume = {9},
	number = {3},
	year = {2017},
	pages = {613-620},
	abstract = {
	
		
			
				
					Modeling and design of rectangular microstrip patch printed on isotropic or anisotropic substrate are accomplished in this paper. The use of spectral domain method in conjunction with artificial neural networks (ANNs) to compute the resonant characteristics of rectangular microstrip patch printed on isotropic or anisotropic substrates. The moment method implemented in the spectral domain offers good accurateness, but its computational cost is high owing to the evaluation of the slowly decaying integrals and the iterative nature of the solution process. The paper introduces the electromagnetic knowledge combined with ANN in the analysis of rectangular microstrip antenna on uniaxially anisotropic substrate to reduce the complexity of the spectral domain method and to minimize the CPU time necessary to obtain the numerical results. The numerical comparison between neurospectral and conventional moment methods shows significant improvements in time convergence and computational cost. Hence, the use of neurospectral approach presented here as a promising fast technique in the design of microstrip antennas.
				
			
		
	



	\&nbsp;



	
		\&nbsp;
	

},
	url = {https://www.cambridge.org/core/journals/international-journal-of-microwave-and-wireless-technologies/article/neurospectral-computation-for-the-resonant-characteristics-of-microstrip-patch-antenna-printed-on-uniaxially-anisotropic-substrates/859FA2B6042DA2},
	author = {Barkat, Lamia and Bedra, Sami and Fortaki , Tarek and Bedra , Randa}
}
@article {3984,
	title = {Efficiency Enhancement of a-Si:H/c-Si-Based Radial Solar Cell by Optimizing the Geometrical and Electrical Parameters, ISSN / e-ISSN 1610-1642 / 1610-1642},
	journal = {Current topics in solid state physics},
	year = {2017},
	abstract = {
	In this paper, a new particle swarm optimization-based approach is proposed for the geometrical optimization of the nanowires solar cells to achieve improved optical performance. The proposed hybrid approach combines the 3-D numerical analysis using accurate solutions of Maxwell{\textquoteright}s equations and metaheuristic investigation to boost the solar cell total absorbance efficiency. Our purpose resides on modulating the electric field and increasing the light trapping capability by optimizing the radial solar cell geometrical parameters. Moreover, a comprehensive study of vertical core-shell nanowire arrays optical parameters such as the integral absorption, reflection, and total absorbance efficiency is carried out, in order to reveal the optimized radial solar cells optical performance for low-cost photovoltaic applications. We find that the proposed hybrid approach plays a crucial role in improving the nanowires solar cells optical performance, where the optimized design exhibits superior total absorbance efficiency and lower total reflection in comparison with those provided by the conventional planar design. The obtained results make the proposed global optimization approach valuable for providing high-efficiency nanowires solar cells.

},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/pssc.201700146},
	author = {Hichem Ferhati and Fay{\c c}al Djeffal and Arar,  Djemai and Zohir Dibi}
}
@article {3978,
	title = {Comparative Analysis of Two Op-Amp Topologies for a 40MS/s 8-bitPipelined ADC in 0.18μm CMOS Technology, ISSN / e-ISSN 1790-5052 / 2224-3488},
	journal = {WSEAS TRANSACTIONS ON SIGNAL PROCESSING},
	volume = {Volume 13},
	year = {2017},
	pages = {pp 83-89},
	abstract = {The performances of two full differential operational amplifiers (Op-Amps) telescopic and folded-cascode are evaluated to satisfy the stringent requirements on the amplifier to be used in a Multiplying Digital-to-Analog Converter (MDAC) stage of a pipelined ADC (Analog-to-Digital Converter). The paper shows the solutions found to reach high gain, wide bandwidth and short settling time without degrading too much the output swing. The Op-Amp specifications are extracted according to the ADC requirements, then the two Op-Amp topologies are designed, tested and their performances are compared. Simulation results show that the Op-Amp folded-cascode topology is more suitable architecture for pipelined ADC than the telescopic one. Moreover, the use of this type of Op-Amp generates an Integral Non-Linearity (INL) error less than that of the telescopic one. The analyses and simulation results are obtained using 0.18 {\textmu}m AMS (Austria Mikro System) CMOS process parameters with a power supply voltage of 1.8V. The predicted performance is verified by analysis and simulations using Cadence EDA simulator.},
	url = {http://www.wseas.org/multimedia/journals/signal/2017/a205801-593.php},
	author = {Dendouga Abdelghani and Oussalah Slimane}
}
@article {3969,
	title = {An efficient small size electromagnetic energy harvesting sensor for low-DC-power applications, ISSN / e-ISSN 1751-8725 / 1751-8733},
	journal = { IET Microwaves, Antennas \& Propagation},
	volume = {Volume 11},
	number = { Issue 4},
	year = {2017},
	pages = {pp 483 - 489},
	abstract = {An efficient small size electromagnetic energy harvesting sensor for low-DC-power applications is proposed. The sensor consists of two main parts: a dual polarisation square patch antenna used to collect the RF energy at a central frequency of 2.45 GHz, and two voltage doublers rectifier circuit for the RF-to-DC conversion. The overall size of the design is 50 {\texttimes} 50 {\texttimes} 6.2 mm\&nbsp;3\&nbsp;. Firstly, the antenna is designed using high-frequency structure simulator software; followed by the design of the rectifier circuit in advanced design system. After simulations, a sensor prototype is fabricated using F4B as the antenna substrate. Measurements show that the sensor achieves a comparatively high maximum measured efficiency of 41\% for a power level of -10 dBm. The sensor has a simple structure, it is compact sized, light weight, and presents a high RF-to-DC conversion efficiency for low-RF-power levels which can be used to charge different low-DC-power devices.},
	url = {https://ieeexplore.ieee.org/document/7887591},
	author = {Meddour Fay{\c c}al and Dibi Zohir}
}
