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A Study of Inverted-Type Perovskite Solar Cells with Various Composition Ratios of (FAPbI3)1−x(MAPbBr3)x

Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao E. Rd., Taipei 10608, Taiwan
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Academic Editor: Hao-chung Kuo
Nanomaterials 2016, 6(10), 183; https://doi.org/10.3390/nano6100183
Received: 5 September 2016 / Revised: 24 September 2016 / Accepted: 10 October 2016 / Published: 13 October 2016
This work presents mixed (FAPbI3)1−x(MAPbBr3)x perovskite 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)x perovskite 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. PEDOT:PSS was a hole transporting layer between the ITO and perovskite. Both C60 and bathocuproine (BCP) were electron transporting layers. MAPbBr3 was added to FAPbI3 with a composition ratio of x = 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)x and x = 0.2 exhibited outstanding performance. View Full-Text
Keywords: MAPbBr3; FAPbI3; solar cells; perovskite MAPbBr3; FAPbI3; solar cells; perovskite
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Chen, L.-C.; Tseng, Z.-L.; Huang, J.-K. A Study of Inverted-Type Perovskite Solar Cells with Various Composition Ratios of (FAPbI3)1−x(MAPbBr3)x. Nanomaterials 2016, 6, 183.

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