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Progress in air-processed perovskite solar cells: from crystallization to photovoltaic performance

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Abstract

Marked progress has been made in organometallic halide perovskite (OHP) solar cells, with their power conversion efficiency reaching up to 24.2% owing to the excellent optoelectronic properties such as high light absorption coefficients, long carrier diffusion lengths, and high carrier mobilities. Among the reported highly efficient devices, most were fabricated in a well-controlled inert environment. However, large-scale manufacturing requires ambient processing, which affects the crystallization process of OHP. Recently, considerable attention has been drawn to developing air-processed OHP solar cells, in terms of scientific understanding of the crystallization process and developing processes compatible with large volume manufacturing. This review article summarizes the recent progress made in air-processed OHP solar cells. Specifically, we focus on (1) the microscopic understanding of the impact of the ambient environment on the crystallization process of OHP composites, (2) the approaches to control the crystallization and morphology of OHP in ambient air, and (3) the fabrication processes to achieve highly efficient air-processed OHP solar cells. Finally, we will discuss the challenges and pathways toward commercialization of low-cost air-processed OHP solar cells.

Graphical abstract: Progress in air-processed perovskite solar cells: from crystallization to photovoltaic performance

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Publication details

The article was received on 02 Mar 2019, accepted on 09 May 2019 and first published on 09 May 2019


Article type: Minireview
DOI: 10.1039/C9MH00325H
Mater. Horiz., 2019, Advance Article

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    Progress in air-processed perovskite solar cells: from crystallization to photovoltaic performance

    Y. Cheng, F. So and S. Tsang, Mater. Horiz., 2019, Advance Article , DOI: 10.1039/C9MH00325H

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