Deep acceptorlike recombination centers in bulk liquid encapsulated Czochralski GaP, studied with optically detected magnetic resonance

Journal Article · Fri Jul 01 04:00:00 EDT 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.342490· OSTI ID:5254596

Godlewski, M; Monemar, B

The optically detected magnetic resonance technique is applied to determine the nature of broad, featureless emission bands observed in the near-infrared region in bulk GaP crystals grown by the liquid encapsulated Czochralski method. A broad emission band with maximum at approx. =8000 A (approx. =1.55 eV) was consistently observed in undoped and donor-doped (S, Te, Se, Ge) crystals, and is shown to be due to donor-acceptor pair (DAP) recombination. The analysis of the optically detected magnetic resonance experiments indicates that shallow donors and deep acceptors are active in the 8000-A recombination. The identity of the approx. =0.7-eV deep acceptor center active in this DAP transition could not be determined from the experimental results, but a single acceptor complex consisting of a Ga vacancy and two adjacent donors is proposed as a tentative model.

• Research Organization: Department of Physics and Measurement Technology, Linkoeping University, S-581 83 Linkoeping, Sweden
• OSTI ID: 5254596
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 64:1; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
CRYSTAL STRUCTURE
DATA
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDES
INFORMATION
INFRARED RADIATION
INFRARED SPECTRA
LUMINESCENCE
MAGNETIC RESONANCE
NEAR INFRARED RADIATION
NUMERICAL DATA
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHOTOLUMINESCENCE
PNICTIDES
RADIATIONS
RESONANCE
SPECTRA
TRAPS