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  • Low-temperature processed In2S3 electron transport layer for efficient hybrid perovskite solar cells

    Author(s)
    Hou, Yu
    Chen, Xiao
    Yang, Shuang
    Zhong, Yu Lin
    Li, Chunzhong
    Zhao, Huijun
    Yang, Hua Gui
    Griffith University Author(s)
    Zhao, Huijun
    Yang, Huagui
    Hou, Yu
    Zhong, Yulin
    Year published
    2017
    Metadata
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    Abstract
    As a new generation of photovoltaics, perovskite solar cells (PSCs) have been intensively studies in recent years due to their high-efficiency, low-cost and ease of fabrication. For a typical high-performance PSC, electron transport layer (ETL) plays an important role in selectively extracting and transporting photo-generated electrons from perovskite to the electrode. In this paper, for the first time, we found that a well-organized In2S3 nanoflakes array can be used in PSCs with a high power conversion efficiency (PCE) of 18.22% with less hysteresis. In comparison, PSCs based on TiO2 ETL showed a much lower PCE of 15.70%. ...
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    As a new generation of photovoltaics, perovskite solar cells (PSCs) have been intensively studies in recent years due to their high-efficiency, low-cost and ease of fabrication. For a typical high-performance PSC, electron transport layer (ETL) plays an important role in selectively extracting and transporting photo-generated electrons from perovskite to the electrode. In this paper, for the first time, we found that a well-organized In2S3 nanoflakes array can be used in PSCs with a high power conversion efficiency (PCE) of 18.22% with less hysteresis. In comparison, PSCs based on TiO2 ETL showed a much lower PCE of 15.70%. Experimental results clearly illustrate that the optimized band structure, enhanced light tapping and low recombination of photo-generated carriers in In2S3 ETL based devices leads to this enhanced performance. Noteworthily, such In2S3 ETLs are simple and solution processable at low-temperature (≤80 °C), which might provide new avenue for low-cost and solution-processed photovoltaics.
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    Journal Title
    Nano Energy
    Volume
    36
    DOI
    https://doi.org/10.1016/j.nanoen.2017.04.033
    Subject
    Inorganic Green Chemistry
    Synthesis of Materials
    Macromolecular and Materials Chemistry
    Materials Engineering
    Nanotechnology
    Publication URI
    http://hdl.handle.net/10072/355570
    Collection
    • Journal articles

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