Answers are grounded in this paper and cite their sources.
The photoluminescence spectrum of GaAs(Cr, Si) is studied over a wide range of Cr and Si doping levels. The 0.84 eV line associated with an internal ( 5 E to 5 T 2 ) transition of Cr 2+ disappears in sufficiently n-type (N e >or approximately=1*10 17 cm -3 ) material due to the conversion of all the chromium into the Cr 1+ charge state.
No takes yet. Share an insight, caveat, or question.
Instone et al. (1978) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: