Patent ID: 8247683
Filing Date: 2012-08-21
Classification: H01L,Y02E,Y02P

Abstract:
1. A cadmium telluride thin film photovoltaic device, comprising: a glass superstrate; a transparent conductive oxide layer on the glass superstrate; an n-type layer on the transparent conductive oxide layer, wherein the n-type layer comprises cadmium sulfide; an oxide thin film interlayer on the n-type layer, wherein the oxide thin film consists of cadmium stannate, zinc stannate, or a combination thereof; a p-type layer on the thin film interlayer, wherein the p-type layer comprises cadmium telluride, and wherein the n-type layer and the p-type layer form a p-n heterojunction with the thin film interlayer positioned between the n-type layer and the p-type layer; and, a back contact on the p-type layer.