- 专利标题: LIGHT-ABSORBING MATERIAL, METHOD FOR PRODUCING THE SAME, AND SOLAR CELL INCLUDING THE SAME
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申请号: US16416253申请日: 2019-05-19
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公开(公告)号: US20190270648A1公开(公告)日: 2019-09-05
- 发明人: AKIO MATSUSHITA , HIROKO OKUMURA
- 申请人: Panasonic Intellectual Property Management Co., Ltd.
- 优先权: JP2017-022948 20170210
- 主分类号: C01G17/00
- IPC分类号: C01G17/00 ; H01L51/42 ; H01G9/20
摘要:
A light-absorbing material includes a compound, wherein the compound has a perovskite crystal structure represented by the formula AMX3 where a Cs+ ion is located at an A-site, a Ge2+ ion is located at an M-site, and I− ions are located at X-sites, and at least a part of the compound has an orthorhombic perovskite crystal structure. An X-ray diffraction pattern of the compound measured using Cu Kα radiation may have a first peak at a diffraction angle (2θ) of 25.4° or more and 25.8° or less and a second peak at a diffraction angle (2θ) of 24.9° or more and 25.3° or less, and an intensity of the first peak may be 30% or more of an intensity of the second peak.
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