Zobrazeno 1 - 10
of 459
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:
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:
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:
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
Publikováno v:
Philippine Journal of Ophthalmology, Vol 40, Iss 1, Pp 18-23 (2015)
Objective: To develop and validate a noninvasive method for measuring tear break-up time (NIBUT) using readily available materials and comparing it to the standard fluorescein tear break-up time (TBUT) assessment. Methods: A prototype xeroscope wa
Externí odkaz:
https://doaj.org/article/ab65adc1622d416084309bcdc61ee1dc
Autor:
Christine Elias, Phuong Vuong, Guillaume Cassabois, Bernard Gil, Adrien Rousseau, Pierre Valvin, Thomas Pelini
Publikováno v:
Comptes Rendus. Physique. 22:69-76
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7993cf43e5d693f3802c0df37340965b
https://doi.org/10.5802/crphys.78
https://doi.org/10.5802/crphys.78
Publikováno v:
Reflets de la physique. :16-21
Les propriétés germicides des rayonnements ultraviolets (UV) suscitent un intérêt de plus en plus important dans les domaines d’applications stratégiques que sont l’environnement et la santé. Les diodes électroluminescentes (LEDs) semi-con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3abf2c4c21cb135de2fcef316d6c4de8
https://doi.org/10.1051/refdp/202271016
https://doi.org/10.1051/refdp/202271016