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.
ASJC Scopus subject areas
- Physics and Astronomy(all)