Zobrazeno 1 - 10
of 458
pro vyhledávání: '"Bernard Gil"'
Autor:
Kohei Shima, Tin S. Cheng, Christopher J. Mellor, Peter H. Beton, Christine Elias, Pierre Valvin, Bernard Gil, Guillaume Cassabois, Sergei V. Novikov, Shigefusa F. Chichibu
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-8 (2024)
Abstract Cathodoluminescence (CL) spectroscopy is a suitable technique for studying the luminescent properties of optoelectronic materials because CL has no limitation on the excitable bandgap energy and eliminates ambiguous signals due to simple lig
Externí odkaz:
https://doaj.org/article/d9f906e2499b4a14b6b4e72c9ecf4f02
Autor:
Péter Udvarhelyi, Tristan Clua-Provost, Alrik Durand, Jiahan Li, James H. Edgar, Bernard Gil, Guillaume Cassabois, Vincent Jacques, Adam Gali
Publikováno v:
npj Computational Materials, Vol 9, Iss 1, Pp 1-8 (2023)
Abstract The boron-vacancy spin defect ( $${\,{{\mbox{V}}}}_{{{\mbox{B}}}\,}^{-}$$ V B − ) in hexagonal boron nitride (hBN) has a great potential as a quantum sensor in a two-dimensional material that can directly probe various external perturbatio
Externí odkaz:
https://doaj.org/article/bf99938d466046a0a98c8522184e0ec8
Autor:
Bernard Gil, Wilfried Desrat, Adrien Rousseau, Christine Elias, Pierre Valvin, Matthieu Moret, Jiahan Li, Eli Janzen, James Howard Edgar, Guillaume Cassabois
Publikováno v:
Crystals, Vol 12, Iss 6, p 782 (2022)
The sp2-bonded layered compound boron nitride (BN) exists in more than a handful of different polytypes (i.e., different layer stacking sequences) with similar formation energies, which makes obtaining a pure monotype of single crystals extremely tri
Externí odkaz:
https://doaj.org/article/8934c473be5f4dad8c4d3d9d376330ef
Autor:
Thi Huong Ngo, Bernard Gil, Tatiana V. Shubina, Benjamin Damilano, Stéphane Vezian, Pierre Valvin, Jean Massies
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
Abstract We investigate the optical properties of porous GaN films of different porosities, focusing on the behaviors of the excitonic features in time-integrated and time-resolved photoluminescence. A substantial enhancement of both excitonic emissi
Externí odkaz:
https://doaj.org/article/6fb6501d0db34b0280442a5978ce5f1d
Autor:
Pierre Valvin, Thomas Pelini, Guillaume Cassabois, Alberto Zobelli, Jiahan Li, James H. Edgar, Bernard Gil
Publikováno v:
AIP Advances, Vol 10, Iss 7, Pp 075025-075025-6 (2020)
We report the development of a scanning confocal microscope dedicated to photoluminescence in the 200 nm-wavelength range for samples at cryogenic temperatures (5 K–300 K). We demonstrate the performances of our deep ultraviolet cryomicroscope in h
Externí odkaz:
https://doaj.org/article/a6205c1244274140a998af86c459d6d3
Autor:
Yuriy Leonidovich Zhukovskiy, Daria Evgenievna Batueva, Alexandra Dmitrievna Buldysko, Bernard Gil, Valeriia Vladimirovna Starshaia
Publikováno v:
Energies, Vol 14, Iss 17, p 5268 (2021)
In the next 20 years, the fossil energy must become a guarantor of the sustainable development of the energy sector for future generations. Significant threats represent hurdles in this transition. This study identified current global trends in the e
Externí odkaz:
https://doaj.org/article/c3c372de53234b5189c6c1fb7882f287
Autor:
Julien Brault, Mohamed Al Khalfioui, Samuel Matta, Thi Huong Ngo, Sébastien Chenot, Mathieu Leroux, Pierre Valvin, Bernard Gil
Publikováno v:
Crystals, Vol 10, Iss 12, p 1097 (2020)
AlGaN based light emitting diodes (LEDs) will play a key role for the development of applications in the ultra-violet (UV). In the UVB region (280–320 nm), phototherapy and plant lighting are among the targeted uses. However, UVB LED performances s
Externí odkaz:
https://doaj.org/article/0caaaa98e2d843ebb2578ce0e8690ce2
Autor:
Seokho Moon, Adrien Rousseau, Francis Ngome Okello Odongo, Youngjae Kim, Yunjae Park, Jiye Kim, Pierre Valvin, Jaehee Cho, Feng Ding, Jaedong Lee, Si-Young Choi, Bernard Gil, Guillaume Cassabois, Jong Kyu Kim
Publikováno v:
Light-Emitting Devices, Materials, and Applications XXVII.
Autor:
Christine Elias, Phuong Vuong, Guillaume Cassabois, Bernard Gil, Adrien Rousseau, Pierre Valvin, Thomas Pelini
Publikováno v:
Comptes Rendus. Physique. 22:69-76
Autor:
Lama Khalil, Cyrine Ernandes, José Avila, Adrien Rousseau, Pavel Dudin, Nikolai D. Zhigadlo, Guillaume Cassabois, Bernard Gil, Fabrice Oehler, Julien Chaste, Abdelkarim Ouerghi
Publikováno v:
Nanoscale Advances.
In two dimensional materials, substitutional doping during growth can be used to alter the electronic properties.