公开(公告)号：US09825191B2

公开(公告)日：2017-11-21

申请号：US14317686

申请日：2014-06-27

申请人： SUNPOWER CORPORATION

发明人： Michael C. Johnson ,  Kieran Mark Tracy ,  Seung Bum Rim ,  Jara Fernandez Martin ,  Périne Jaffrennou ,  Julien Penaud

IPC分类号： H01L31/0216 ,  H01L31/0236 ,  H01L31/068

CPC分类号： H01L31/02167 ,  H01L31/02363 ,  H01L31/0682 ,  Y02E10/547

摘要： Methods of passivating light-receiving surfaces of solar cells with high energy gap (Eg) materials, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having a light-receiving surface. A passivating dielectric layer is disposed on the light-receiving surface of the substrate. A Group III-nitride material layer is disposed above the passivating dielectric layer. In another example, a solar cell includes a substrate having a light-receiving surface. A passivating dielectric layer is disposed on the light-receiving surface of the substrate. A large direct band gap material layer is disposed above the passivating dielectric layer, the large direct band gap material layer having an energy gap (Eg) of at least approximately 3.3. An anti-reflective coating (ARC) layer disposed on the large direct band gap material layer, the ARC layer comprising a material different from the large direct band gap material layer.

公开(公告)号：US20180040746A1

公开(公告)日：2018-02-08

申请号：US15783276

申请日：2017-10-13

申请人： SUNPOWER CORPORATION

发明人： Michael C. Johnson ,  Kieran Mark Tracy ,  Seung Bum Rim ,  Jara Fernandez Martin ,  Périne Jaffrennou ,  Julien Penaud

IPC分类号： H01L31/0216 ,  H01L31/068 ,  H01L31/0236

CPC分类号： H01L31/02167 ,  H01L31/02363 ,  H01L31/0682 ,  Y02E10/547

摘要： Methods of passivating light-receiving surfaces of solar cells with high energy gap (Eg) materials, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having a light-receiving surface. A passivating dielectric layer is disposed on the light-receiving surface of the substrate. A Group III-nitride material layer is disposed above the passivating dielectric layer. In another example, a solar cell includes a substrate having a light-receiving surface. A passivating dielectric layer is disposed on the light-receiving surface of the substrate. A large direct band gap material layer is disposed above the passivating dielectric layer, the large direct band gap material layer having an energy gap (Eg) of at least approximately 3.3. An anti-reflective coating (ARC) layer disposed on the large direct band gap material layer, the ARC layer comprising a material different from the large direct band gap material layer.