Paper Title:
Titanium Related Luminescence in SiC
  Abstract

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.

  Info
Periodical
Materials Science Forum (Volumes 600-603)
Edited by
Akira Suzuki, Hajime Okumura, Tsunenobu Kimoto, Takashi Fuyuki, Kenji Fukuda and Shin-ichi Nishizawa
Pages
461-464
DOI
10.4028/www.scientific.net/MSF.600-603.461
Citation
A. Henry, P. Bergman, E. Janzén, "Titanium Related Luminescence in SiC", Materials Science Forum, Vols. 600-603, pp. 461-464, 2009
Online since
September 2008
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