Impact of H2O on organic-inorganic hybrid perovskite solar cells

Research output: Contribution to journalReview ArticleScientificpeer-review

Researchers

Research units

  • Xi'an Jiaotong University
  • Peking University

Abstract

The performance and stability of organic-inorganic hybrid perovskite solar cells (PSCs) is sensitive to water and moisture in an ambient environment. Understanding how H2O influences the perovskite material is also important for developing appropriate control strategies to mitigate the problem. Here we provide a comprehensive review on the effect of water on the state-of-the-art lead-based perovskite solar cells in terms of perovskite material design, perovskite film preparation, device fabrication, and photovoltaic application. It is found that a moderate amount of water can facilitate nucleation and crystallization of the perovskite material, resulting in better perovskite film quality and enhanced PSC performance. The perovskite materials are irreversibly destroyed by H2O after a certain level of water, but they exihibit better tolerance than initially expected. Humidity resistant fabrication of high-performance PSC devices and modules should therefore be favoured. Generally, water shows a negative effect on the long-term stability and lifetime of PSCs. To reduce the effects from water during outdoor operation, attention should be paid to different protection methods such as varying the perovskite composition, optimizing the electron/hole transport layer and encapsulation of the device.

Details

Original languageEnglish
Pages (from-to)2284-2311
Number of pages28
JournalEnergy and Environmental Science
Volume10
Issue number11
Publication statusPublished - 1 Nov 2017
MoE publication typeA2 Review article in a scientific journal

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