Patent ID: 8541680
Filing Date: 2013-09-24
Classification: H01L,Y02E

Abstract:
1. A photovoltaic module comprising: a superstrate having a front side, a back side, a left edge and a right edge, the back side having a roughened surface including at least one peak and a plurality of ramps, each ramp including a ramped surface and a vertical face which is perpendicular to the back side of the superstrate; a front contact layer on the back side of the superstrate; a layer of amorphous silicon overlying the front contact layer; and a back contact layer overlying the silicon layer, the back contact layer having a front side facing the silicon layer and a back side, wherein each ramp has an effective height to form a connection between the front contact layer located at a top of the ramp with the back contact layer located adjacent the top of the ramp on the vertical face that delimits the front contact layer, amorphous silicon layer and back contact layer into individual, electrically interconnected cells, wherein the at least one peak and the layers thereon are truncated, exposing a portion of the superstrate relative to the front contact layer, amorphous silicon layer and back contact layer and interrupting electrical continuity of the photovoltaic module.