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2 December 2021 Exciton cathodoluminescence of HTHP diamonds at elevated temperatures
Vasilii Ripenko, Evgeniy Lipatov, Alexander Burachenko, Dmitriy Genin, Mikhail Shulepov
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Proceedings Volume 12086, XV International Conference on Pulsed Lasers and Laser Applications; 120861Q (2021) https://doi.org/10.1117/12.2615953
Event: XV International Conference on Pulsed Lasers and Laser Applications, 2021, Tomsk, Russian Federation
Abstract
The study of exciton cathodoluminescence in diamond is not only scientific but also practical importance. Ultraviolet radiation at a wavelength of 235 nm can be used for disinfection, activation of surface reactions, photochemistry, and more. Thus, diamond is a promising material for creating a cathodoluminescent source of ultraviolet radiation. We have investigated the temperature dependences of the exciton cathodoluminescence spectra of single-crystal diamond in the temperature range from 80 to 400 K. The temperature dependences showed a characteristic increase in the intensity of exciton cathodoluminescence in the range 230-240 nm with increasing temperatures from 80 K to 150- 180 K. Further increase in temperature to room temperature (297 K) leads to a twofold decrease in the radiation intensity. With a further increase in temperature to 400 K, no change in the cathodoluminescence intensity was observed within the error
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Vasilii Ripenko, Evgeniy Lipatov, Alexander Burachenko, Dmitriy Genin, and Mikhail Shulepov "Exciton cathodoluminescence of HTHP diamonds at elevated temperatures", Proc. SPIE 12086, XV International Conference on Pulsed Lasers and Laser Applications, 120861Q (2 December 2021); https://doi.org/10.1117/12.2615953
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KEYWORDS
Excitons
Diamond
Ultraviolet radiation
Semiconductors
Spectroscopy
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