Towards commercialization: the operational stability of perovskite solar cells

Recently, perovskite solar cells (PSCs) have attracted much attention owing to their high power conversion efficiency (25.2%) and low fabrication cost. However, the short lifetime under operation is the major obstacle for their commercialization. With efforts from the entire PSC research community,...

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Bibliographic Details
Published in:Chemical Society reviews 2020-11, Vol.49 (22), p.8235-8286
Main Authors: Li, Nengxu, Niu, Xiuxiu, Chen, Qi, Zhou, Huanping
Format: Article
Language:English
Subjects:
Chemical reactions
Commercialization
Energy conversion efficiency
Firearm accidents & safety
Materials processing
Perovskites
Photovoltaic cells
Service life assessment
Solar cells
Stability analysis
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Summary:Recently, perovskite solar cells (PSCs) have attracted much attention owing to their high power conversion efficiency (25.2%) and low fabrication cost. However, the short lifetime under operation is the major obstacle for their commercialization. With efforts from the entire PSC research community, significant advances have been witnessed to improve the device operational stability, and a timely summary on the progress is urgently needed. In this review, we first clarify the definition of operational stability and its significance in the context of practical use. By analyzing the mechanisms in established approaches for operational stability improvement, we summarize several effective strategies to extend device lifetime in a layer-by-layer sequence across the entire PSC. These mechanisms are discussed in the contexts of chemical reactions, photo-physical management, technological modification, etc. , which may inspire future R&D for stable PSCs. Finally, emerging operational stability standards with respect to testing and reporting device operational stability are summarized and discussed, which may help reliable device stability data circulate in the research community. The main target of this review is gaining insight into the operational stability of PSCs, as well as providing useful guidance to further improve their operational lifetime by rational materials processing and device fabrication, which would finally promote the commercialization of perovskite solar cells. This review gives insight into the operational stability of perovskite solar cells and provides possible research direction for further improvement.
ISSN:0306-0012
1460-4744
DOI:10.1039/d0cs00573h