SOLAR CELL, LIGHT-ABSORBING LAYER, AND METHOD FOR FORMING LIGHT-ABSORBING LAYER

• Main Authors: UCHIDA RYUUSUKE, SUZUKA MICHIO
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2019
• Subjects: ELECTRICITY

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 A1M1X1 3, 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 andthat has a perovskite structure represented by composition formula A2M2X2 3, 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. 种太阳能电池，具备：第1电极；与第1电极对向的第2电极；和位于第1电极和第2电极之间，且包含第1层和第2层的光吸收层，在将A作为1价阳离子、M作为2价阳离子、X作为卤阴离子时，第1层包含具有用组成式AMX表示的钙钛矿结构的第1化合物，在将A作为1价阳