Cuprous Oxide Solution Preparation and Application to Cu_2O-ZnO Solar Cells

摘要

Preparation of photoactive cuprous oxide (CU_2O) is achieved via simple solution treatment of copper foils in copper sulfate aqueous solution. XRD indicates that pure CU_2O phase is obtained, and gel electrolyte is used to probe high photocurrent on the film. Zinc oxide layer is deposited via MOCVD or spin coating, and the resulting Cu_2O-ZnO heterojunction solar cells are characterized with transparent Au or gallium doped zinc oxide (GZO) top contacts.