期刊
CHEMSUSCHEM
卷 9, 期 18, 页码 2528-2540出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201600915
关键词
ion migration; perovskite; selective contacts; solar cells; stability
资金
- National Research Foundation of Korea (NRF) grants - Ministry of Science, ICT&Future Planning (MSIP) of Korea [NRF-2012M3A6A7054861, NRF-2015M1A2A2053004, NRF-2012M3A7B4049986]
- Future Materials Discovery Program [NRF-2016M3D1A1027663, NRF-2016M3D1A1027664]
- National Research Foundation of Korea [2015M1A2A2053004, 2016M3D1A1027664, 2012M3A6A7054861, 2012M3A7B4049986] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Organic-inorganic halide perovskite solar cells have attracted great attention because of their superb efficiency reaching 22% and low-cost, facile fabrication processing. Nevertheless, stability issues in perovskite solar cells seem to block further advancements toward commercialization. Thus, device stability is one of the important topics in perovskite solar cell research. In the beginning, the poor moisture resistivity of the perovskite layer was considered as a main problem that hindered further development of perovskite solar cells, which encouraged engineering of the perovskite or protection of the perovskite by a buffer layer. Soon after, other parameters affecting long-term stability were sequentially found and various attempts have been made to enhance intrinsic and extrinsic stability. Here we review the recent progresses addressing stability issues in perovskite solar cells. In this report, we investigated factors affecting stability from material and device points of view. To gain a better understanding of the stability of the bulk perovskite material, decomposition mechanisms were investigated in relation to moisture, photons, and heat. Stability of full device should also be carefully examined because its stability is dependent not only on bulk perovskite but also on the interfaces and selective contacts. In addition, ion migration and current-voltage hysteresis were found to be closely related to stability.
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