Negative luminescence (NL) at lambda (max) = 3.8 mum from reverse-biased p-
InAsSbP/n-InAs diode heterostructures has been studied at temperatures of 7
0-180 degreesC. The NL power increases with temperature and exceeds the pow
er of direct-bias electroluminescence at temperatures over 110 degreesC. An
NL power of 5 mW/cm(2), efficiency of 60%, and a conversion efficiency of
25 mW/(A cm(2)) have been obtained at 160 degreesC. (C) 2001 MAIK "Nauka/In
terperiodica".