Bound-double-exciton complexes in zinc-doped germanium
- 15 February 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 29 (4), 2347-2349
- https://doi.org/10.1103/physrevb.29.2347
Abstract
Photoluminescence from zinc-doped germanium is examined at liquid-helium temperatures. Three pairs of impurity-associated lines, in the set of phonon replicas, have been assigned to be radiations from single and double excitons bound to zinc, a double acceptor with deep levels. The dissociation energies of the bound exciton and the bound-double-exciton complex are 5.7 and 3.2 meV, respectively. The bound-double-exciton complex is very stable because of a closed-hole-shell structure.Keywords
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