EVIDENCE FOR ASSOCIATED DEEP DONOR-SHALLOW ACCEPTOR PAIR RECOMBINATION FOR THE EL2 EMISSION BAND IN GaAs.

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Shanabrook, B.V.
Klein, P.B.
Bishop, S.G.
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Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics | 1982年 / 117-118卷 / Pt I期
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Time-resolved photoluminescence measurements have been performed on the EL2 emission band. The position and width of the EL2 emission band are found to be independent of the time elapsed after the exciting laser pulse. This observation is in agreement with a donor-acceptor pair recombination model involving donors and acceptors with a well-defined spatial separation. Photoluminescence fatigue measurements have also been performed on both the EL2 emission band and a related band at . 68 ev. The implications of these measurements for the interpretation of the metastable electronic state of EL2 are discussed.
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页码：173 / 175
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