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LOW-TEMPERATURE PHOTOLUMINESCENCE SPECTRA OF TLINXGA1-XS2 LAYER MIXED-CRYSTALS

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1995-06-01
ALLAKHVERDIEV, KR
Hasanlı, Nızamı
AYDINLI, A
Low-temperature photoluminescence spectra of TlInS2, TlIn0.95 Ga0.05S2 and TlIn0.8Ga0.2S2 layer crystals were studied in the temperature range 14-220 K. The temperature dependencies of bands 2.374eV (A), 2.570 eV (E) and 2.576 eV (F) for TlInS2 are interpreted by supposing that the crystal undergoes structural phase transitions. Band A is considered to come from a donor-acceptor recombination channel.