Electronic properties of vacancy-oxygen complex in Ge crystals
VP Markevich, ID Hawkins, AR Peaker… - Applied Physics …, 2002 - ui.adsabs.harvard.edu
It is argued that the vacancy-oxygen (VO) complex (A center) in Ge has three charge states:
double negative, single negative, and neutral. Corresponding energy levels are located at E
c-0.21 eV (VO--/-) and E v+ 0.27 eV (VO-/0). An absorption line at 716 cm-1 has been
assigned to the asymmetrical stretching vibration mode of the doubly negatively charged VO
complex.
double negative, single negative, and neutral. Corresponding energy levels are located at E
c-0.21 eV (VO--/-) and E v+ 0.27 eV (VO-/0). An absorption line at 716 cm-1 has been
assigned to the asymmetrical stretching vibration mode of the doubly negatively charged VO
complex.
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