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Highly efficient p-i-n perovskite solar cells that endure temperature variations
Guixiang Li , Zhenhuang Su , Laura Canil , Declan Hughes , Mahmoud H. Aldamasy , Janardan Dagar , Sergei Trofimov , Luyao Wang , Weiwei Zuo , José J. Jerónimo-Rendon , Mahdi Malekshahi Byranvand , Chenyue Wang, Rui Zhu, Zuhong Zhang, Feng Yang , Giuseppe Nasti , Boris Naydenov , Wing Chung Tsoi , Zhe Li, Xingyu Gao , Zhaokui Wang , Yu Jia, Eva Unger , Michael Saliba , Meng Li , Antonio Abate
Science, Volume: 379, Issue: 6630, Pages: 399 - 403
Swansea University Authors: Declan Hughes , Wing Chung Tsoi
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DOI (Published version): 10.1126/science.add7331
Daily temperature variations induce phase transitions and lattice strains in halide perovskites, challenging their stability in solar cells. We stabilised the perovskite black phase and improved the solar cell performance using the ordered dipolar structure of β-poly(1,1-difluoroethylene) to control...
American Association for the Advancement of Science (AAAS)
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Daily temperature variations induce phase transitions and lattice strains in halide perovskites, challenging their stability in solar cells. We stabilised the perovskite black phase and improved the solar cell performance using the ordered dipolar structure of β-poly(1,1-difluoroethylene) to control the perovskite film crystallisation and the energy alignment. We demonstrated p-i-n perovskite solar cells with a record power conversion efficiency of 24.6% over 18 square millimetres and 23.1% over 1 square centimetre, which retained 96% and 88% of the efficiency after 1000-hours 1-sun maximum power point tracking at 25 and 75 °C, respectively. Devices under rapid thermal cycling between −60 °C and +80 °C showed no sign of fatigue, demonstrating the impact of the ordered dipolar structure on the operational stability of perovskite solar cells.
Faculty of Science and Engineering
The authors acknowledge the support of all the technicians at Helmholtz-Zentrum Berlin (HZB). The authors thank beamline BL14B1 at the Shanghai Synchrotron Radiation Facility (SSRF) for providing the beam time. G.L., L.C., and M.H.A. thank the support from HyPerCells graduate school at HZB. R.Z. was supported by the National Natural Science Foundation of China (22103022). G.L. thanks the Chinese Scholarship Council (CSC) for its financial support (201906150131). M.S. and W.Z. thank the German Research Foundation (DFG) for funding (SPP2196, 431314977/GRK 2642). M.S. acknowledges funding by ProperPhotoMile. Project ProperPhotoMile is supported under the umbrella of SOLAR-ERA.NET Cofund 2 by the Spanish Ministry of Science and Education and the AEI under the project PCI2020-112185 and CDTI project number IDI-20210171; the Federal Ministry for Economic Affairs and Energy based on a decision by the German Bundestag project number FKZ 03EE1070B and FKZ 03EE1070A and the Israel Ministry of Energy with project number 220-11-031. The European Commission supports SOLAR-ERA.NET within the EU Framework Programme for Research and Innovation HORIZON 2020 (Cofund ERA-NET Action, 786483). This work has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement 804519).