公开(公告)号：US20140048129A1

公开(公告)日：2014-02-20

申请号：US13792485

申请日：2013-03-11

Applicant: AU OPTRONICS CORPORATION

Inventor： Tsung-Pao CHEN ,  Shih-Hsien YANG ,  Yu-Chun CHEN ,  Ming-Hui CHIU ,  Yi-Hsuan LIN ,  Yen-Cheng HU ,  Jen-Chieh CHEN ,  Zhen-Cheng WU

IPC: H01L31/0352

CPC classification number: H01L31/035281 ,  H01L31/0682 ,  H01L31/1804 ,  Y02E10/547 ,  Y02P70/521

Abstract: A solar cell includes a substrate. The substrate has a light-receiving surface and a back surface opposite to the light-receiving surface. The substrate includes plural trenches formed on the back surface. The solar cell includes plural n-type diffusion areas and plural p-type diffusion areas alternately disposed on the back surface and the surface of the trenches. The possibility of recombination of the electron-hole pair while moving can be reduced because of the trenches, which are formed in the substrate.

Abstract translation: 太阳能电池包括基板。 基板具有光接收表面和与光接收表面相对的后表面。 基板包括形成在背面上的多个沟槽。 太阳能电池包括多个n型扩散区域和交替地设置在沟槽的背面和表面上的多个p型扩散区域。 由于在衬底中形成的沟槽，可以减少移动时电子 - 空穴对复合的可能性。