Toward High Cost-performance Perovskite Solar Cells
Xudong Yang a, Liyuan Han b
a Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, China, Shanghai, 201100, China
b National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, 3050047, Japan
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Yokohama-shi, Japan, 2017 February 2nd - 4th
Organizers: Tsutomu Miyasaka and Iván Mora-Seró
Poster, Xudong Yang, 123
Publication date: 7th November 2016

Organo-metal halide perovskite based solar cells (PSCs) have attracted great research attention as a low-cost photovoltaic technology. The state-of-art research has achieved very high power conversion efficiency (PCE) of 22%. However, most of the high PCEs were achieved on cells with tiny working area of ~0.1 cm2 and very short lifetime. As well known, the measurement errors will be enlarged when the active cell area gets smaller. Moreover, the poor stability and large hysteresis in current-voltage scanning may further open the debate on the reliable characterization of the device performance. Therefore, it is crucial to advance efficient and stable PSCs with larger working area, which will accelerate the research of perovskite solar cells for future application.

In this presentation, I will demonstrate our works to achieve high cost-performance PSCs with working area of over 1 cm2. [1-2] First, we developed a new method to enable a better charge separation in planar heterojunction PSCs. This work can enhance the long-term stability of the device which performed a good stability of 1,000 hours under simulated solar light (AM 1.5G). Second, we developed the soft-cover deposition method to enable high cost-performance perovskite solar cell. Third, an annealing-free deposition method will also so be introduced for large-area high quality perovskite films.

Reference:

[1] Ye, F.; Chen, H.; Xie, F. X.; Tang, W. T.; Yin, M. S.; He, J. J.; Bi, E. B.; Wang, Y. B.; Yang, X. D.*; Han, L. Y.*, Energy Environ. Sci. 2016, 9 (7), 2295-2301.

[2] Yin, M. S.; Xie, F. X.; Chen, H.*; Yang, X. D.; Ye, F.; Bi, E. B.; Wu, Y. Z.; Cai, M. T.; Han, L. Y.*, J. Mater. Chem. A 2016, 4 (22), 8548-8553



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