Luminescence of the semimagnetic semiconductor CdMnTe in the wavelength range 370–400 nm at high excitation levels

Abstract

Luminescence of the semimagnetic semiconductor CdMnTe was studied. It was revealed that, in the near-UV range, the luminescence spectrum of CdMnTe contains a band whose position does not depend on the Mn concentration in the solid solution. The temperature and lux-watt characteristics of the band were investigated, and time-resolved measurements were performed. The totality of the data obtained permits the conclusion that the revealed band can be attributed to the luminescence of clusters of a metastable cubic modification of manganese telluride.