公开(公告)号：US20230136715A1

公开(公告)日：2023-05-04

申请号：US17434085

申请日：2021-05-21

申请人： Trina Solar Co., Ltd.

发明人： Xueling Zhang ,  Wei Liu ,  Hong Chen ,  Lei Jian ,  Yifeng Chen

IPC分类号： H01L31/18 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/068

摘要： A laminated passivation structure of solar cell and a preparation method thereof are disclosed herein. The laminated passivation structure of solar cell includes a P-type silicon substrate, a first dielectric layer, a second dielectric layer, and a third dielectric layer sequentially arranged on the back side of the P-type silicon substrate from inside to outside. The preparation method includes generating a first dielectric layer on the back surface of the P-type silicon substrate, and then sequentially depositing a second dielectric layer and a third dielectric layer on the first dielectric layer.

公开(公告)号：US20230361227A1

公开(公告)日：2023-11-09

申请号：US17430951

申请日：2021-05-21

申请人： Trina Solar Co., Ltd.

发明人： Xueling Zhang ,  Wei Liu ,  Hong Chen ,  Lei Jian ,  Yifeng Chen

IPC分类号： H01L31/0216 ,  H01L31/18

CPC分类号： H01L31/02167 ,  H01L31/18

摘要： A laminated passivation structure of solar cell and a preparation method thereof are disclosed herein. The laminated passivation structure of solar cell includes a P-type silicon substrate, a first dielectric layer, a second dielectric layer, a third dielectric layer and a fourth dielectric layer sequentially arranged on the back surface of the P-type silicon substrate from inside to outside. The preparation method includes generating a first dielectric layer on the back surface of the P-type silicon substrate, and then sequentially depositing a second dielectric layer, a third dielectric layer and a fourth dielectric layer on the first dielectric layer.