Titanium Related Luminescence in SiC

Henry, Anne, 1959- (author): Linköpings universitet,Tekniska högskolan,Halvledarmaterial

Bergman, Peder, 1961- (author): Linköpings universitet,Tekniska högskolan,Halvledarmaterial

Janzén, Erik, 1954- (author): Linköpings universitet,Tekniska högskolan,Halvledarmaterial

(creator_code:org_t)

Materials Science Forum, Vols. 600-603 : Trans Tech Publications, 2009
2009
English.
In: ICSCRM2007,2007. - Materials Science Forum, Vols. 600-603 : Trans Tech Publications. ; , s. 461-464

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.4...; show less...

Abstract Subject headings

We report on the luminescence spectra related to Ti impurity in both 4H- and 6H-SiC polytypes. The spectrum depends strongly on the polarization. They are two families of lines in 4H and three in 6H. The main no-phonon line of each family is shown as a triplet and its phonon structure contains both sharp and broad replicas. The higher energy family has also extra lines at high energy appearing when the temperature increases. The spectra can be detected with excitation energy below the excitonic bandgap and even with excitation energy below the spectrum itself. Time-resolved photoluminescence reveals 0.1 ms long lifetime at low temperature.

By the author/editor: Henry, Anne, 195 ...; Bergman, Peder, ...; Janzén, Erik, 19 ...

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