A Study of Inverted-Type Perovskite Solar Cells with Various Composition Ratios of (FAPbI₃)1-x(MAPbBr₃)x.
This work presents mixed (FAPbI₃)1-x(MAPbBr₃)xperovskite films with various composition ratios,x(x= 0-1), which are formed using the spin coating method. The structural, optical, and electronic behaviors of the mixed (FAPbI₃)1-x(MAPbBr₃)xperovskite films are discussed. A device with structure glass/indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)/mixed perovskite/C60/BCP/Ag was fabricated. The mixed perovskite film was an active light-harvesting layer.
PSS was a hole transporting layer between the ITO and perovskite. Both C60and bathocuproine (BCP) were electron transporting layers. MAPbBr₃ was added to FAPbI₃ with a composition ratio ofx= 0.2, stabilizing the perovskite phase, which exhibited a uniform and dense morphology. The optimal device exhibited band matching with C60, resulting in a low series resistance (Rsh) and a high fill factor (FF). Therefore, the device with composition (FAPbI₃)1-x(MAPbBr₃)xandx= 0.2 exhibited outstanding performance.
Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao E. Rd., Taipei 10608, Taiwan. ocean@ntut.edu.tw.
Lung-Chien
LC
Chen
Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao E. Rd., Taipei 10608, Taiwan. tw78787788@yahoo.com.tw.
Zong-Liang
ZL
Tseng
Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao E. Rd., Taipei 10608, Taiwan. t103658032@ntut.org.tw.
Jun-Kai
JK
Huang
FAPbI3; MAPbBr3; perovskite; solar cells