Patent ID: 9520513
Filing Date: 2016-12-13
CPC Classification: H01L,Y02E,Y02P

Claim Text:
1. A photovoltaic device comprising: a transparent conductive layer on a substrate; a first semiconductor layer including an n-type III-V compound semiconductor, the first semiconductor layer positioned over the transparent conductive layer; a second semiconductor layer including a p-type II-VI compound semiconductor, the second semiconductor layer positioned between the first semiconductor layer and a back metal contact, wherein a rectifying heterojunction is formed between the III-V and II-VI compound semiconductors; and an interfacial layer between the first semiconductor layer and the second semiconductor layer that enhances the rectifying heterojunction between the III-V and II-VI compound semiconductors, wherein the interfacial layer comprises an oxide or doped composition thereof, wherein the oxide or doped composition thereof is selected from the group consisting of mercury oxide, nickel oxide, palladium oxide, silver oxide, strontium oxide, titanium oxide, and vanadium oxide.