Pressure dependence of the photoluminescence spectra of nitrogen-doped ZnSe: Evidence of compensating deep donors
- 22 August 1994
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 65 (8) , 1006-1008
- https://doi.org/10.1063/1.112207
Abstract
We have measured the photoluminescence spectra of nitrogen-doped ZnSe under hydrostatic pressure. From the pressure dependence of the peak positions of the acceptor-bound exciton and donor-acceptor-pair emissions, we show that highly doped samples have two donor-acceptor-pair transitions, one involving shallow and one involving deep donors. Our results confirm that one mechanism limiting the free hole concentration is compensation from this deep donor.Keywords
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