Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Oleg M. Chapura"'
Autor:
Vladimir N. Korchagin, Igor A. Sysoev, Victor I. Ratushny, Daniil V. Mitrofanov, Oleg M. Chapura
Publikováno v:
Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 23, Iss 6, Pp 1122-1127 (2023)
Silicon solar cells with functional coatings based on polyvinyl butyral with carbon quantum dots. The change in the parameters of solar cells, when these coatings are used on the front surface of solar cells, is studied. A know-how method has been
Externí odkaz:
https://doaj.org/article/9f5e8ddf7d5d46e8abb0fdf6961da12e
Autor:
Vitaly A. Tarala, Alexander A. Kravtsov, Sergey V. Kuznetsov, Fedor F. Malyavin, Oleg M. Chapura, Ekaterina A. Brazhko, Lev V. Kozhitov
Publikováno v:
Modern Electronic Materials, Vol 9, Iss 3, Pp 133-144 (2023)
Optical ceramics based on YSAG : Yb : Er with the compositions {Y1.86Yb0.45Er0.09Sc0.6}[Al1.6Sc0.4]Al3O12 and {Y2.26Yb0.45Er0.09Sc0.2}[Al1.0Sc1.0]Al3O12 were fabricated by vacuum sintering from pre-synthesized nanocrystalline powders. A comparative a
Externí odkaz:
https://doaj.org/article/82ea2c0ed8244beebfbde9a43a1a5c6b
Autor:
Oleg V. Devitsky, Leonid S. Lunin, Daniil V. Mitrofanov, Igor A. Sysoev, Dmitry A. Nikulin, Oleg M. Chapura
Publikováno v:
Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki, Vol 23, Iss 4, Pp 703-710 (2023)
Solid solution Ga1–xInxAs is widely used in modern optoelectronics as a material for p-i-n photodetectors, lasers emitting in the spectral range 1.3–1.55 μm. In this paper, the features of obtaining Ga1–xInxAs films by the method of zone recry
Externí odkaz:
https://doaj.org/article/0b48f796b12a4b7882867f013c8b3998
Autor:
Lyudmila V. Tarala, Alexander A. Kravtsov, Oleg M. Chapura, Vitaly A. Tarala, Dmitry S. Vakalov, Fedor F. Malyavin, Sergey V. Kuznetsov, Viacheslav A. Lapin, Lev V. Kozhitov, Alena V. Popkova
Publikováno v:
Modern Electronic Materials, Vol 8, Iss 3, Pp 123-130 (2022)
The aim of this work was to study the effect of vacuum sintering conditions and cerium concentration on the optical, luminescent and thermal properties of yttrium-aluminum garnet based ceramics doped with Се3+ cations. Series of ceramic powders wer
Externí odkaz:
https://doaj.org/article/e603e918c7d04e8fbc7bcee6393f3cb4
Autor:
Oleg V. Devitsky, Alexey A. Zakharov, Leonid S. Lunin, Igor A. Sysoev, Alexander S. Pashchenko, Dmitry S. Vakalov, Oleg M. Chapura
Publikováno v:
Конденсированные среды и межфазные границы, Vol 24, Iss 3 (2022)
We present the results of the study of the structure and surface morphology of InxGa1–xAs thin films on a GaAs substrate. Thin films were obtained by magnetron sputtering from a specially formed In0.45Ga0.55As target in an argon atmosphere. The ob
Externí odkaz:
https://doaj.org/article/cf9bf58e010c49108895fb4bec11e805
Autor:
Vitaly A. Tarala, Alexander A. Kravtsov, Fedor F. Malyavin, Dmitry S. Vakalov, Victoria E. Suprunchuk, Lyudmila V. Tarala, Viacheslav A. Lapin, Oleg M. Chapura, Evgeniy V. Medyanik, Sergey V. Kuznetsov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2de1fcdf92a657cccbb1710d6196104
https://doi.org/10.2139/ssrn.4431704
https://doi.org/10.2139/ssrn.4431704
Combined effect of MgO sintering additive and stoichiometry deviation on YAG crystal lattice defects
Autor:
V.A. Tarala, Oleg M. Chapura, M.S. Nikova, D.S. Vakalov, F.F. Malyavin, I.S. Chikulina, D.S. Kuleshov, Svyatoslav O. Krandievsky, Alexander A. Kravtsov, Viacheslav A. Lapin
Publikováno v:
Ceramics International. 45:20178-20188
This study aims to investigate the combined effect of the magnesium oxide (MgO) sintering additive and the deviations of the yttrium aluminum garnet (YAG) stoichiometry towards the excess of Al3+ and Y3+ on crystal lattice defects. YAG ceramic powder
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6c10623e189528fd88c8ca0567d113c
https://doi.org/10.1016/j.ceramint.2019.06.287
https://doi.org/10.1016/j.ceramint.2019.06.287