Laws of nanosize molybdenum (VI) oxide layers optical properties change as a result of heat treatment
| Parent link: | Bulletin of the Tomsk Polytechnic University/ Tomsk Polytechnic University (TPU).— , 2006-2007 Vol. 310, № 3.— 2007.— [P. 61-65] |
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| Summary: | Заглавие с титульного листа Электронная версия печатной публикации The spectrophotometric method determines two absorption and reflection spectral areas of nanosize MoO3 layers - short-wave λ<330 nanometers and long-wave λ>330 nanometers. It is stated by spectrophotometric, gravimetric and microscopic methods that in atmospheric conditions MoO3 layers transformation degree (d=10...130 nm) grows at time (1...140 minutes) and heat treatment temperatures (Т=373...600 К) (at constant layer thickness) increasing as well as at reduction of layers thickness. The reduction of absorption maxima at λ=350 nm and increase at λ=870 nanometers at heat treatment of MoO3 layers is revealed. The colour centers formation model is offered. It includes the center formation - anionic vacancy with one seized electron ([(Vа) ++ е]) during preparation of MoO3 layer, thermal electron transition from a valent zone on a level of the center, the second electron capture by the center ([(е Vа) ++ е]). |
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2007
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| Series: | Chemistry |
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| Online Access: | http://www.lib.tpu.ru/fulltext/v/Bulletin_TPU/2007/v310eng/i3/15.pdf |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=182096 |