Abstract: | Chemical analysis is used to study the structural changes on the surface of a ZnS-Cu, Pb phosphor arising in the course of photoluminescence in molecular hydrogen and radical-recombination luminescence excited by hydrogen atoms. The photolysis of zinc sulfide and its decomposition by an atomic-molecular mixture of hydrogen were observed. A mechanism for the reduction involving electrons, holes, and chemisorbed hydrogen is discussed.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 42–46, October, 1976. |