Figure 1

(a) The energy band structure of ZnO/ZnS heter-junctions; (b) the schematic structure of ZnO-dotted ZnS; (c) the structure evolution from ZnO to PCMS.
(a) The energy band structure of ZnO/ZnS heter-junctions; (b) the schematic structure of ZnO-dotted ZnS; (c) the structure evolution from ZnO to PCMS.