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1. (WO2018123402) SOLAR CELL, LIGHT-ABSORBING LAYER, AND METHOD FOR FORMING LIGHT-ABSORBING LAYER

Pub. No.:    WO/2018/123402    International Application No.:    PCT/JP2017/042714
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: H01L 51/44
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: UCHIDA Ryuusuke
内田 隆介
SUZUKA Michio
鈴鹿 理生
Title: SOLAR CELL, LIGHT-ABSORBING LAYER, AND METHOD FOR FORMING LIGHT-ABSORBING LAYER
Abstract:
This solar cell is provided with: a first electrode; a second electrode that is opposed to the first electrode; and a light-absorbing layer that includes a first layer and a second layer and that is positioned between the first electrode and the second electrode. The first layer includes a first compound that has a perovskite structure represented by composition formula A1M1X13, in which A1 represents a monovalent cation, M1 represents a divalent cation, and X1 represents a halogen anion. The second layer includes a second compound that is different in composition from the first compound and that has a perovskite structure represented by composition formula A2M2X23, in which A2 represents a monovalent cation, M2 represents a divalent cation, and X2 represents a halogen anion. The first compound in the first layer and/or the second compound in the second layer has a single orientation.