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31 results on '"El Kouari, Y."'

17. Optimization of ultra-thin CIGS-based solar cells by strained In1−xGaxAs absorption layer: 1D SCAPS modeling.

Author

Tarbi, A., Chtouki, T., Sellam, M. A., Benahmed, A., El Kouari, Y., Erguig, H., Migalska-Zalas, A., Goncharova, I., and Taboukhat, S.

Abstract

In this study, we investigated the optoelectronic behavior of In1−xGaxAs alloy epitaxy on a GaAs substrate by varying the chemical composition of gallium. We studied the impact of the elastic deformation generated by the lattice mismatch between the material and substrate on the bandgap energy and absorption coefficient. The hydrostatic pressure and temperature were considered. Our aim was to show that this constraint can also contribute to widening the bandgap range. The results were exploited to optimize the efficiency of solar cells based on copper indium gallium (di) selenide Cu (In, Ga) Se2 (CIGS) using an InGaAs absorbent layer, which must be strained to minimize the cost of the cell by reducing the Ga (x) content. [ABSTRACT FROM AUTHOR]

Published
2023
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24. Preface

Author

Karakas, A., Karakaya, M., Taser, M., Ceylan, Y., El Kouari, Y., Taboukhat, Said, Akdas-Kilig, Huriye, Fillaut, Jean-Luc, Karpierz, Miroslav, Ayadi, Awatef, Mydlova, Lucia, El-Ghayoury, Abdelkrim, Makowska-Janusik, Malgorzata, Lazar, C., Manea, A., Chtouki, T., Soumahoro, L., Kulyk, Bohdan, Bougharraf, H., Kabouchi, B., Erguig, H., Szukalski, A., Parafiniuk, K., Haupa, K., Goldeman, W., Kajzar, F., Mysliwiec, J., Arof, A.K., Buraidah, M.H., Teo, L.P., Winie, Tan, Woo, H.J., Pereira Silva, Pedro, Pereira Gonçalves, Mauro, Silva, Manuela Ramos, Zawadzka, Anna, Paixão, José, Harun, Kausar, Yaakob, Muhamad Kamil, Mohamad Taib, Mohamad Fariz, Sahraoui, Bouchta, Ahmad, Zainal Arifin, Mohamad, Ahmad Azmin, MOLTECH-Anjou, Université d'Angers (UA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Warsaw University of Technology [Warsaw], Laboratoire de physique de l'état condensé (LPEC), Le Mans Université (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Spectronomie Moléculaire, Optique et Instrumentation Laser, Université Mohammed V de Rabat [Agdal] (UM5), Department of General Chemistry, University Politehnica of Bucharest [Romania] (UPB), Propriétés Optiques des Matériaux et Applications (POMA), Université d'Angers (UA)-Centre National de la Recherche Scientifique (CNRS), USM Fellowship, Universiti Sains Malaysia, MyBrain15 Scholarship, Ministry of Higher Education, Malaysia, Institut de Chimie du CNRS (INC)-Université d'Angers (UA)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Mohammed V de Rabat [Agdal], Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), and Centre National de la Recherche Scientifique (CNRS)-Le Mans Université (UM)

Subjects
[PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2017

25. Synthesis and nonlinear optical properties of push-pull type stilbene and pyrazoline based chromophores

Author

Wolska, N., Płóciennik, P., Bougharraf, H., Mirershadi, S., Ahmadi-Kandjani, S., Zawadzka, A., Rouhbakhsh, H., Ait Hana, N., Aride, J., Haddad, M., Benkhouja, K., Taibi, M., Karakas, A., Karakaya, M., Taser, M., Ceylan, Y., Gozutok, A., Arof, A.K., El Kouari, Y., Szukalski, A., Parafiniuk, K., Haupa, K., Goldeman, W., Sahraoui, B., Kajzar, F., Mysliwiec, J., Laboratoire de Spectronomie Moléculaire, Optique et Instrumentation Laser, Université Mohammed V de Rabat [Agdal], Propriétés Optiques des Matériaux et Applications (POMA), Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA), Institute of Physics [Toruń], Nicolaus Copernicus University [Toruń], Centre de Recherche Paul Pascal (CRPP), Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physico-Chimie des Matériaux, Associé à l'AUF (LAF 502), Rabat, Department of General Chemistry, and University Politehnica of Bucharest [Romania] (UPB)

Subjects
[PHYS]Physics [physics], Chemistry, Process Chemistry and Technology, General Chemical Engineering, Doping, Pyrazoline, 02 engineering and technology, Chromophore, 010402 general chemistry, 021001 nanoscience & nanotechnology, Photochemistry, 01 natural sciences, Acceptor, 0104 chemical sciences, chemistry.chemical_compound, Harmonic, Moiety, Thin film, Methyl methacrylate, 0210 nano-technology, ComputingMilieux_MISCELLANEOUS
Abstract

In this work we present the synthesis, spectroscopic and nonlinear optical properties of push-pull type organic dyes based on 1-phenyl-2-pyrazoline or 4-(dimethylamino)phenyl chromophores as a donor part, and bridged by a double bound ortho- or meta- substituted nitrophenyl group as an acceptor. For the optical measurements we have used the poly(methyl methacrylate) based thin films doped with the dyes. Third harmonic generation measurements were performed under the picosecond laser regime with excitation wavelength at 1064 nm. The experimental results confirmed that investigated systems can be used as the efficient nonlinear optical systems for harmonic of light generation (tripled but also doubled frequency). It has also been proved the strong dependence between chemical structure (position of electron-acceptor moiety as well as the type of electron-donor unit) and nonlinear optical (NLO) response coming from series of isomers and derivatives.

Published
2017

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