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Materials 2017, 10(7), 837; doi:10.3390/ma10070837

Effects of Annealing Conditions on Mixed Lead Halide Perovskite Solar Cells and Their Thermal Stability Investigation

Wide Bandgap Semiconductor Technology Disciplines State Key Laboratory, School of Microelectronics, Xidian University, Xi’an 710071, China
College of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China
Shaanxi Joint Key Laboratory of Graphene, Xidian University, Xi’an 710071, China
Authors to whom correspondence should be addressed.
Received: 11 June 2017 / Revised: 9 July 2017 / Accepted: 14 July 2017 / Published: 21 July 2017
(This article belongs to the Section Energy Materials)
View Full-Text   |   Download PDF [6805 KB, uploaded 21 July 2017]   |  


In this work, efficient mixed organic cation and mixed halide (MA0.7FA0.3Pb(I0.9Br0.1)3) perovskite solar cells are demonstrated by optimizing annealing conditions. AFM, XRD and PL measurements show that there is a better perovskite film quality for the annealing condition at 100 °C for 30 min. The corresponding device exhibits an optimized PCE of 16.76% with VOC of 1.02 V, JSC of 21.55 mA/cm2 and FF of 76.27%. More importantly, the mixed lead halide perovskite MA0.7FA0.3Pb(I0.9Br0.1)3 can significantly increase the thermal stability of perovskite film. After being heated at 80 °C for 24 h, the PCE of the MA0.7FA0.3Pb(I0.9Br0.1)3 device still remains at 70.00% of its initial value, which is much better than the control MAPbI3 device, where only 46.50% of its initial value could be preserved. We also successfully fabricated high-performance flexible mixed lead halide perovskite solar cells based on PEN substrates. View Full-Text
Keywords: perovskite solar cells; annealing condition; film quality; thermal stability perovskite solar cells; annealing condition; film quality; thermal stability

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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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Yang, H.; Zhang, J.; Zhang, C.; Chang, J.; Lin, Z.; Chen, D.; Xi, H.; Hao, Y. Effects of Annealing Conditions on Mixed Lead Halide Perovskite Solar Cells and Their Thermal Stability Investigation. Materials 2017, 10, 837.

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