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Highly Uniform Large-Area (100 cm2) Perovskite CH3NH3PbI3 Thin-Films Prepared by Single-Source Thermal Evaporation

Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China
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Coatings 2018, 8(8), 256; https://doi.org/10.3390/coatings8080256
Received: 10 July 2018 / Revised: 19 July 2018 / Accepted: 22 July 2018 / Published: 24 July 2018
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Abstract

In this work, we report the reproducible preparation method of highly uniform large-area perovskite CH3NH3PbI3 thin films by scalable single-source thermal evaporation with the area of 100 cm2. The microstructural and optical properties of large-area CH3NH3PbI3 thin films were investigated. The dense, uniform, smooth, high crystallinity of large-area perovskite thin film was obtained. The element ratio of Pb/I was close to the ideal stoichiometric ratio of CH3NH3PbI3 thin film. These films show a favorable bandgap of 1.58 eV, long and balanced carrier-diffusion lengths. The CH3NH3PbI3 thin film perovskite solar cell shows a stable efficiency of 7.73% with almost no hysteresis, indicating a single-source thermal evaporation that is suitable for a large area perovskite solar cell. View Full-Text
Keywords: single-source thermal evaporation; large-area perovskite; thin film; solar cell single-source thermal evaporation; large-area perovskite; thin film; solar cell
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Liang, G.; Lan, H.; Fan, P.; Lan, C.; Zheng, Z.; Peng, H.; Luo, J. Highly Uniform Large-Area (100 cm2) Perovskite CH3NH3PbI3 Thin-Films Prepared by Single-Source Thermal Evaporation. Coatings 2018, 8, 256.

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