Patent ID: 8497150

Claim:
A method for defect isolation of a thin-film solar cell, formed of a plurality of unit cells, wherein said thin-film solar cell comprises a substrate, a front electrode layer, an absorber layer and a back electrode layer sequentially stacked up, said method comprising steps of: detecting at least a defect of said thin-film solar cell so as to obtain a location of said defect; forming at least an isolation groove is centered around said defect with laser light based on said location of said defect, wherein said isolation groove has a closed-curve configuration to restrain a short circuit from said defect in said thin-film solar cell; and forming said isolation groove with a newly groove width, which partially removing said back electrode layer adjacent to an edge of said isolation groove in said back electrode layer, and said newly groove width of said isolation groove in said back electrode layer greater than that in said absorber layer.