Presentation Information
[10a-A24-11]Cu Doping Effects in Double Perovskite Semiconductor Cs2AgSbCl6 with Defects(Ⅱ):Structural and Optical Properties of Samples Prepared under Different Growth Conditions
〇Masataka Unose1, Kiyoto Matsuishi1 (1.Tsukuba Univ.)
Keywords:
perovskite semiconductor,synthesis,structural evaluation
Double perovskite semiconductors have attracted considerable attention as lead-free photovoltaic materials. In this study, the effects of synthesis conditions on the optical properties of Cu-doped Cs2AgSbCl6 single crystals were investigated. The obtained single crystals exhibited a cubic Fm3-m structure, and the lattice constant decreased with increasing Cu content. Diffuse reflectance measurements revealed that the absorption behavior depended on the synthesis conditions, suggesting that differences in the Cu doping state and/or defect formation behavior influence the optical properties.