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Nanomaterials 2016, 6(10), 183; doi:10.3390/nano6100183

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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Author to whom correspondence should be addressed.
Academic Editor: Hao-chung Kuo
Received: 5 September 2016 / Revised: 24 September 2016 / Accepted: 10 October 2016 / Published: 13 October 2016
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Abstract

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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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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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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