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Recent efficient strategies for improving moisture stability of perovskite solar cells

Abstract

In the past few years, hybrid organic-inorganic perovskite solar cells (PSCs) have attracted much attention due to their excellent photovoltaic performance and extreme low fabrication costs. The power conversion efficiency (PCEs) of these PSCs leaps from 3.8% to a verified PCE of 22.1% within seven years. However, the long-term stability of PSCs still restricts them from industrial applications and chemical decomposition in humid environment has been recognized as a main degradation pathway for the perovskite materials. Although encapsulation techniques are usually used in the field of organic photovoltaic to slow down the degradation in organic materials, the key of resolving the degradation issue of PSCs is to find stable perovskite materials or device architectures and to achieve long-term stability. This review discussed present popular strategies for enhancing the stability of PSCs, in general concerned with modifying the properties of either the perovskite material itself or the charge transport layers. The stability of perovskite materials itself is usually optimized by compositional engineering of halides and cations. Meanwhile, on the other hand, incorporating inorganic charge transport layers or interfacial moisture-resistant agent into PSCs are also considered as effective routes to sustain device stability as well as to retain the performance of PSCs. This review systemically summarise the recent efficient strategies for improving the long-term stability of PSCs devices and provided useful suggestions for further PSC stability development.

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Publication details

The article was received on 12 Feb 2017, accepted on 13 Jun 2017 and first published on 13 Jun 2017


Article type: Review Article
DOI: 10.1039/C7TA01325F
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    Recent efficient strategies for improving moisture stability of perovskite solar cells

    F. Li and M. Liu, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA01325F

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