https://libeldoc.bsuir.by/handle/123456789/38719
Название: | Recovery behavior of the luminescence peak from graphitic carbon nitride as a function of the synthesis temperature |
Авторы: | Chubenko, E. B. Denisov, N. M. Baglov, A. V. Bondarenko, V. P. Uglov, V. V. Borisenko, V. E. |
Ключевые слова: | публикации ученых;carbon nitride;thiourea;polymerization;photoluminescence |
Дата публикации: | 2020 |
Издательство: | John Wiley & Sons |
Описание: | Recovery behavior of the luminescence peak from graphitic carbon nitride as a function of the synthesis temperature/ Eugene B. Chubenko [and other] // Crystal Research &Technology. – 2020. – Vol.55, Iss.3. – P. 1900163. - DOI: 10.1002/crat.201900163. |
Аннотация: | Graphitic carbon nitride (g-C3N4) is synthesized by thermal decomposition of thiourea and subsequent in situ polymerization of the products in the oxygen-containing ambient at 450–625 °C. The synthesized material contains oxygen at a concentration increasing with the processing temperature from 4.8 to 9.8 at %. The photoluminescence peak is found to be red-shifted with the temperature increased to 575 °C becoming then blue-shifted at higher temperatures. The observed red-shift of the photoluminescence peak is supposed to be caused by band-gap narrowing in g-C3N4 doped by oxygen while its recovery behavior is controlled by thermally induced oxygen-assisted disruption of sp2 bonds in C-N pi-orbital conjugated system of tri-s-triazine units building polymer sheets in g-C3N4. |
URI: | https://libeldoc.bsuir.by/handle/123456789/38719 |
Располагается в коллекциях: | Публикации в зарубежных изданиях |
Файл | Описание | Размер | Формат | |
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Chubenko_Recovery.pdf | 1.45 MB | Adobe PDF | Открыть |
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