Zobrazeno 1 - 10 of 27 pro vyhledávání: '"Béchir Yangui"'
1
Structural and dielectric characterization of sputtered Tantalum Titanium Oxide thin films for high temperature capacitor applications
Autor: I. Dakhlaoui, Fatiha Challali, Antoine Goullet, Alain Sylvestre, C. Vallée, Béchir Yangui, Ahlem Rouahi, Marie-Paule Besland, F. Jomni, S. Salimy
Publikováno v: Thin Solid Films
Thin Solid Films, Elsevier, 2016, 606, pp.127-132. ⟨10.1016/j.tsf.2016.03.047⟩
In this study, the dielectric properties of metal-oxide-metal capacitors based on Tantalum Titanium Oxide (TiTaO) thin films deposited by reactive magnetron sputtering on aluminum bottom electrode are investigated. The structure of the films was char
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a24adf7b7d72d4364d19e541e5829b93
https://doi.org/10.1016/j.tsf.2016.03.047
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2
Experimental evaluation of the forming process of virgin HfO2 memory cells by capacitance-voltage measurements
Autor: Béchir Yangui, F. Jomni, Patrice Gonon, O. Khaldi, C. Mannequin, Christophe Vallée
Publikováno v: physica status solidi (RRL) - Rapid Research Letters. 8:634-638
In this Letter, we evaluate the so-called forming process of virgin HfO2 cells under ac and dc stress by capacitance–voltage measurements. It is found that the ac nonlinearity is higher than the dc one. This is related to the dispersive nature of h
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::25eac9ea4cc36e7a7c164045ec08c87c
https://doi.org/10.1002/pssr.201409153
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3
Ac-conductivity and dielectric relaxations above glass transition temperature for parylene-C thin films
Autor: Abdelkader Kahouli, Fathi Jomni, Béchir Yangui, Alain Sylvestre, J. Legrand
Publikováno v: Applied Physics A Solids and Surface
Applied Physics A Solids and Surface, Springer-Verlag, 2012, pp.909-913
45% semi-crystalline parylene-C (–H2C–C6H3Cl–CH2–) n thin films (5.8 μm) polymers have been investigated by broadband dielectric spectroscopy for temperatures above the glass transition (T g =90°C). Good insulating properties of parylene-C
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::867e511ccd8aef241ac91a57de969a63
https://doi.org/10.1007/s00339-011-6706-4
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4
EFFECT OF THE OXYGEN ADDITION IN THE SPUTTERING GAS ON THE DIELECTRIC PROPERTIES OF a-BaTiO3 FILMS
Autor: F. El Kamel, Béchir Yangui, F. Jomni, Patrice Gonon
Publikováno v: Integrated Ferroelectrics. 97:121-128
Amorphous barium titanate films (a-BTO) were grown by the RF magnetron sputtering technique at low temperature and under various oxygen/argon mixing ratios (OMR). Their dielectric properties (dielectric constant, loss and ac conductivity in the 0.1
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::614b2d148b2c76a734738020ca0826d0
https://doi.org/10.1080/10584580802088975
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5
Ionic and electronic defects in a‐BaTiO 3 thin films studied by transient and steady state conductivity measurements
Autor: Patrice Gonon, Béchir Yangui, F. El Kamel, F. Jomni
Publikováno v: physica status solidi c. 4:1242-1245
Conduction mechanisms in BaTiO3 films deposited at low temperatures on Cu-electrodes have been investigated in transient and steady regimes as a function of temperatures and electric field. This work aims to identify possible defects which govern the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac6ab26c16953eac19955bb346b0944d
https://doi.org/10.1002/pssc.200673795
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6
Leakage current and stability of acrylic elastomer subjected to high DC voltage
Autor: Claire Jean-Mistral, S. Hammami, Pascal Rain, Béchir Yangui, F. Jomni, Alain Sylvestre, Olivier Gallot-Lavallée
Publikováno v: SPIE Proceedings.
Dielectric elastomers such as 3M VHB4910 acrylate film have been widely used for electromechanical energy conversion such as actuators, sensors and generators, due to their lightweight, high efficiency, low cost and high energy density. Mechanical an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c54097b668c948303115c3be5b28bcd
https://doi.org/10.1117/12.2082694
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8
Impedance and electric modulus study of amorphous TiTaO thin films: highlight of the interphase effect
Autor: Fatiha Challali, Antoine Goullet, Corentin Vallée, Abdelkader Kahouli, Béchir Yangui, S. Salimy, Marie-Paule Besland, Alain Sylvestre, Ahlem Rouahi
Publikováno v: Journal of Physics D: Applied Physics
Journal of Physics D: Applied Physics, IOP Publishing, 2013, 46, pp.065308
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Journal of Physics D: Applied Physics, 2013, 46, pp.065308. ⟨10.1088/0022-3727/46/6/065308⟩
The influence of phases and phase’s boundaries of TiO2 and Ta2O5 in the dielectric and electric response of TiTaO (100 nm thick) elaborated by RF magnetron sputtering was highlighted by complex impedance spectroscopy. Dielectric and electric modulu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3621cf999efc555c8cfef18b4db0be6
https://hal.archives-ouvertes.fr/hal-00908474
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9
Propriétés diélectrique de couche mince de TiTaO
Autor: Ahlem Rouahi, Abdelkader Kahouli, Fatiha Challali, Marie-Paule BESLAND, Christophe Vallée, Sébastien Pairis, Béchir Yangui, Salimy, S., Antoine Goullet, Alain Sylvestre
Publikováno v: JCMM 2012 : 12ème journées de caractérisation microondes et matériaux
JCMM 2012 : 12ème journées de caractérisation microondes et matériaux, Mar 2012, Chambéry, France
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National audience
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::5baf18381c95137e09e01fc238daad9a
https://hal.archives-ouvertes.fr/hal-00685128
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10
Experimental and theoretical study of AC electrical conduction mechanisms of semicrystalline parylene C thin films
Autor: Béchir Yangui, Alain Sylvestre, J. Legrand, Abdelkader Kahouli, F. Jomni
Publikováno v: Journal of Physical Chemistry A
Journal of Physical Chemistry A, American Chemical Society, 2012, pp.1051-1058
The electrical conduction mechanisms of semicrystalline thermoplastic parylene C (-H(2)C-C(6)H(3)Cl-CH(2)-)(n) thin films were studied in large temperature and frequency regions. The alternative current (AC) electrical conduction in parylene C is gov
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ee6ee1543698b8d370fa28f8aa6e115
https://hal.archives-ouvertes.fr/hal-00815181
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