发明申请
- 专利标题: Multijunction Photovoltaic Cell Fabrication
- 专利标题(中): 多结光伏电池制造
-
申请号: US12713592申请日: 2010-02-26
-
公开(公告)号: US20110048517A1公开(公告)日: 2011-03-03
- 发明人: Stephen W. Bedell , Norma Sosa Cortes , Keith E. Fogel , Devendra Sadana , Katherine L. Saenger , Davood Shahrjerdi
- 申请人: Stephen W. Bedell , Norma Sosa Cortes , Keith E. Fogel , Devendra Sadana , Katherine L. Saenger , Davood Shahrjerdi
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 主分类号: H01L31/101
- IPC分类号: H01L31/101 ; H01L31/18
摘要:
A method for fabrication of a multijunction photovoltaic (PV) cell includes forming a stack comprising a plurality of junctions on a substrate, each of the plurality of junctions having a respective bandgap, wherein the plurality of junctions are ordered from the junction having the largest bandgap being located on the substrate to the junction having the smallest bandgap being located on top of the stack; forming a metal layer, the metal layer having a tensile stress, on top of the junction having the smallest bandgap; adhering a flexible substrate to the metal layer; and spalling a semiconductor layer from the substrate at a fracture in the substrate, wherein the fracture is formed in response to the tensile stress in the metal layer.