Автор |
S Ostapenko |
Автор |
Yu M Suleimanov |
Автор |
I Tarasov |
Автор |
S Lulu |
Автор |
S E Saddow |
Дата выпуска |
2002-12-09 |
dc.description |
We performed non-contact and non-destructive spatially resolved characterization of traps and recombination centres in two-inch-diameter p-type 4H-SiC wafers using thermally stimulated luminescence (TSL) and scanning room temperature photoluminescence (PL). The TSL glow-curve maximum is located at about 190 K for the Al-doped wafers and the TSL spectrum has a maximum at 1.8 eV, which coincides with the spectrum of the red PL band in the same crystal. The TSL intensity exhibits a noticeable inhomogeneity across the wafers. The spatial distribution shows a negative contrast compared to PL maps, indicating a variation of concentration of the TSL centres across the wafer. The origin of the centres is discussed. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Thermally stimulated luminescence in full-size 4H-SiC wafers |
Тип |
paper |
DOI |
10.1088/0953-8984/14/48/392 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
14 |
Первая страница |
13381 |
Последняя страница |
13386 |
Аффилиация |
S Ostapenko; University of South Florida, Center for Microelectronics Research, 4202 E Fowler Avenue, Tampa, FL 33620, USA |
Аффилиация |
Yu M Suleimanov; University of South Florida, Center for Microelectronics Research, 4202 E Fowler Avenue, Tampa, FL 33620, USA |
Аффилиация |
I Tarasov; University of South Florida, Center for Microelectronics Research, 4202 E Fowler Avenue, Tampa, FL 33620, USA |
Аффилиация |
S Lulu; University of South Florida, Center for Microelectronics Research, 4202 E Fowler Avenue, Tampa, FL 33620, USA |
Аффилиация |
S E Saddow; University of South Florida, Center for Microelectronics Research, 4202 E Fowler Avenue, Tampa, FL 33620, USA |
Выпуск |
48 |