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Defect Engineering towards Highly Efficient and Stable Perovskite Solar Cells

Li, Bowei, Ferguson, Victoria, Silva, Ravi and Zhang, Wei (2018) Defect Engineering towards Highly Efficient and Stable Perovskite Solar Cells Advanced Materials Interfaces, 5 (22), 1800326.

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Metal halide perovskite solar cells are emerging candidates amongst the next-generation thin-film photovoltaic devices with extremely low fabrication cost and high power conversion efficiency. Defects (both in the bulk material and at the interfaces) are recognized as one of the most fundamental reasons for the compromised device performance and long-term stability of perovskite solar cells. In this review article, we analyse the possible origins of the defects formation in metal halide perovskites, followed by the rationalization of various approaches being utilized to reduce the density of defects. We demonstrate that defect engineering, including adding dopants in the precursor solutions, interface passivation, or other physical treatments (thermal or light stress) is an essential way to further boost the device performance and enhance their long-term stability. We note that although the exact mechanisms of defect elimination in some approaches are yet to be elucidated, the research on defect engineering is expected to have enormous impact on next wave of device performance optimisation of metal halide perovskite solar cells towards Shockley-Queisser limit.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Date : 23 November 2018
DOI : 10.1002/admi.201800326
Copyright Disclaimer : © 2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Li, B. W., Ferguson, V., Silva, S. R. P., Zhang, W., Adv. Mater. Interfaces 2018, 5, 1800326, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Uncontrolled Keywords : perovskite solar cells, defects, defect engineering, stability, high performance
Depositing User : Melanie Hughes
Date Deposited : 31 Jul 2018 12:16
Last Modified : 08 Aug 2019 14:06

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