The Printable Triple Mesoscopic Perovskite Solar Cell and System
Yue Hu a
a Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road Wuhan 430074, P.R. China, Wuhan, 4300074, China
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
Proceedings of International Conference on Perovskite and Organic Photovoltaics and Optoelectronics (IPEROP19)
Kyōto-shi, Japan, 2019 January 27th - 29th
Organizers: Hideo Ohkita, Atsushi Wakamiya and Mohammad Nazeeruddin
Oral, Yue Hu, presentation 009
DOI: https://doi.org/10.29363/nanoge.iperop.2019.009
Publication date: 23rd October 2018

 

Over the past few years, organic–inorganic hybrid perovskites have attracted signicantly attention as light absorbers in efficient photovoltaics. While impressive power conversion efficiencies exceeding 23% have been attained within a period of only a few years, concerns have been raised about the viability of this class of photovoltaics as a scalable and long-term reliable energy source. In our group the printable  perovskite solar cells was developed with triple mesoscopic layers. The conjugated or non-conjugated bifunctional molecules were introduced into the perovskite materials to enhance its stability and efficiency. The results indicated that the interface engineering plays a key role of directing the crystal formation and growth during the infiltration and precipitation of the perovskite within the mesoporous oxide scaffold. The fully printable mesoscopic perovskite solar cell presents no obvious decay within over 10000h light soaking and high efficiency of more than 16%. TIn addition, the crystals of the perovskite films are reconstructed by post-treating with methylamine gas and allows the regeneration of the photodegraded PSCs via the crystal reconstruction and the PCE can recover to 91% of the initial value after two cycles of the photodegradation-recovery process. Meanwhile, the characterization of the mesoscopic perovskite solar cells under the UV light soaking condition was performed. A 110 m2 mesoscopic perovskite solar system was exhibited in WonderSolar Co., Ltd. These results offer a promising prospect for its commercial application.

  

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