公开(公告)号：US20160308078A1

公开(公告)日：2016-10-20

申请号：US15196652

申请日：2016-06-29

Applicant: First Solar, Inc.

Inventor： Oleh P. Karpenko ,  Thomas A. Sorenson ,  Jianjun Wang

IPC: H01L31/0236 ,  H01L31/032 ,  H01L31/0296 ,  H01L31/074 ,  H01L31/0288 ,  H01L31/073 ,  H01L31/0749 ,  H01L31/0224 ,  H01L31/0376

CPC classification number: H01L31/02363 ,  H01L31/022425 ,  H01L31/022441 ,  H01L31/0288 ,  H01L31/0296 ,  H01L31/02963 ,  H01L31/0323 ,  H01L31/0376 ,  H01L31/03762 ,  H01L31/073 ,  H01L31/074 ,  H01L31/0749 ,  H01L31/208 ,  Y02E10/50 ,  Y02P70/521

Abstract: A method and apparatus provide for a roughened back surface of a semiconductor absorber layer of a photovoltaic device to improve adhesion. The roughened back surface may be achieved through an etching process.