Silicon carbide defects and luminescence centers in current heated 6H-SiC

• Дата: 2010
• Автори: Lee, S.W., Vlaskina, S.I., Vlaskin, V.I., Zaharchenko, I.V., Gubanov, V.A., Mishinova, G.N., Svechnikov, G.S., Rodionov, V.E., Podlasov, S.A.
• Формат: Стаття
• Мова: English
• Опубліковано: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2010
• Назва видання: Semiconductor Physics Quantum Electronics & Optoelectronics
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/117702
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Silicon carbide defects and luminescence centers in current heated 6H-SiC / S.W. Lee, S.I. Vlaskina, V.I. Vlaskin, I.V. Zaharchenko, V.A. Gubanov, G.N. Mishinova, G.S. Svechnikov, V.E. Rodionov, and S.A. Podlasov // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2010. — Т. 13, № 1. — С. 24-29. — Бібліогр.: 23 назв. — англ.

At room temperature yellow photoluminescence with a broad peak of 2.13 eV is a well-known feature of boron-doped 6H-SiC. Usually yellow luminescence is regarded as recombination involving both the boron-related deep acceptor and donor level. But the nature of the deep level has not been clearly understood yet. We annealed 6H-SiC substrates by current in vacuum without boron injection at the temperature of 1350 and 1500 ºC. We received red and yellow luminescence in PL spectrum for the heated 6H-SiC. The luminescence was regarded as donor-acceptor pair recombination involving the deep aluminum acceptor related to the adjacent carbon vacancies and nitrogen donor or the formation of quantum well like regions of 3C-SiC in 6H-SiC matrix.