No abstract

Single crystals of CuAlSe2 were prepared by the iodine vapour transport technique and annealed in the atmosphere of Zn, Cd, Cd+Al. The cathodoluminescence investigations were carried out at 77 and 300 K. The obtained results suggest the possibility of using this material in light-emitting devices.

Single crystals of CuAlS2 were grown by the chemical vapour transport using iodine as a transporting agent and doped by the elements Zn, Cd and Hg in the growth process or in atomosphere of vapour. The cathodoluminescence investigations of annealed samples at the temperatures 77 and 300 K allowed to determine the recombination mechanism. The outlook of this material for light-emitting devices is presented.