Patent ID: 6072117
Filing Date: 2000-06-06
Classification: H01L,Y02E,Y02P

Abstract:
A photovoltaic device comprising an opaque substrate having an irregular surface structure comprising a plurality of linear irregularities or recesses arranged therein and a photoelectric conversion layer formed on said irregular surface structure of said substrate, said plurality of linear irregularities or recesses having a center line average roughness Ra(X) in a range of 15 nm to 300 nm obtained when scanning is conducted in a direction parallel to the linear irregularities or recesses and a center line average roughness Ra(Y) in a range of 20 nm to 600 nm obtained when scanning is conducted in a direction perpendicular to the linear irregularities or recesses wherein a ratio of said Ra(X)/said Ra(Y) is 0.8 or less.