Patent ID: 8552287
Filing Date: 2013-10-08
Classification: H01L,Y02E

Abstract:
1. A stacked-layered thin film solar cell, constructed of a plurality of individual unit cells each comprising a substrate, a first electrode layer, a first photoconductive layer, an interlayer, a second photoconductive layer, and a second electrode layer in a series stacked structure, wherein at least one first separation groove is formed within the first electrode layer, the stacked-layered thin film solar cell characterized in that: at least one second separation groove formed on the first photoconductive layer by removing only parts of the interlayer without exposing the first electrode layer so as to prevent the second photoconductive layer from directly contacting with the first electrode layer, at least one connection groove passing through the first photoconductive layer and the second photoconductive layer, and at least one third separation groove extending downward at a periphery of each of the unit cells and extending downward to remove a part of the first photoconductive layer in depth without exposing the first electrode layer; wherein the connection groove and the third separation groove are concurrently located inside the second separation groove, wherein a bottom of the third separation groove is kept with a distance from the first electrode layer.