Solar cell devices and apparatus comprising the same,申请号US201012962108-传众专利搜索

Solar cell devices and apparatus comprising the same

申请公布号：US9048376(B2)

申请号：US201012962108

申请日期：2010.12.07

申请公布日期：2015.06.02

申请人：

EPISTAR CORPORATION

发明人：Lin Yi-Chieh;Lee Shih-Chang

分类号：H01L31/06;H01L31/18;H01L31/052;H01L31/0725;H01L31/0735;H01L31/054

主分类号：H01L31/06

代理机构：

Muncy, Geissler, Olds & Lowe, P.C.

代理人：Muncy, Geissler, Olds & Lowe, P.C.

地址：Hsinchu TW

摘要：A multi-junction solar cell device includes a substrate having a first lattice constant, a first optoelectronic conversion layer having a second lattice constant, and a second optoelectronic conversion layer having a third lattice constant wherein the value of the first lattice constant is between that of the second lattice constant and the third lattice constant.

主权项：1. A multi-junction solar cell device, comprising: a substrate comprising a first lattice constant; a first optical-electric conversion layer formed on the substrate and comprising a first band gap and a second lattice constant; a second optical-electric conversion layer formed on the first optical-electric conversion layer and comprising a second band gap and a third lattice constant; and a third optical-electric conversion layer formed on the second optical-electric conversion layer and comprising Ga, In, P and a fourth lattice constant, wherein the second lattice constant and the third lattice constant are larger than the first lattice constant, wherein the fourth lattice constant is smaller than the first lattice constant, wherein the first optical-electric conversion layer and the second optical-electric conversion layer comprise Ga, As and In in different ratios, wherein the first optical-electric conversion layer has an In ratio smaller than that of the third optical-electric conversion layer, and wherein each of the optical-electric conversion layers comprises three different elements.