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Metal-encapsulated organolead halide perovskite photocathode for solar-driven hydrogen evolution in water

Author

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  • Micaela Crespo-Quesada

    (Christian Doppler Laboratory for Sustainable SynGas Chemistry, University of Cambridge)

  • Luis M. Pazos-Outón

    (University of Cambridge)

  • Julien Warnan

    (Christian Doppler Laboratory for Sustainable SynGas Chemistry, University of Cambridge)

  • Moritz F. Kuehnel

    (Christian Doppler Laboratory for Sustainable SynGas Chemistry, University of Cambridge)

  • Richard H. Friend

    (University of Cambridge)

  • Erwin Reisner

    (Christian Doppler Laboratory for Sustainable SynGas Chemistry, University of Cambridge)

Abstract

Lead-halide perovskites have triggered the latest breakthrough in photovoltaic technology. Despite the great promise shown by these materials, their instability towards water even in the presence of low amounts of moisture makes them, a priori, unsuitable for their direct use as light harvesters in aqueous solution for the production of hydrogen through water splitting. Here, we present a simple method that enables their use in photoelectrocatalytic hydrogen evolution while immersed in an aqueous solution. Field’s metal, a fusible InBiSn alloy, is used to efficiently protect the perovskite from water while simultaneously allowing the photogenerated electrons to reach a Pt hydrogen evolution catalyst. A record photocurrent density of −9.8 mA cm−2 at 0 V versus RHE with an onset potential as positive as 0.95±0.03 V versus RHE is obtained. The photoelectrodes show remarkable stability retaining more than 80% of their initial photocurrent for ∼1 h under continuous illumination.

Suggested Citation

  • Micaela Crespo-Quesada & Luis M. Pazos-Outón & Julien Warnan & Moritz F. Kuehnel & Richard H. Friend & Erwin Reisner, 2016. "Metal-encapsulated organolead halide perovskite photocathode for solar-driven hydrogen evolution in water," Nature Communications, Nature, vol. 7(1), pages 1-7, November.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12555
    DOI: 10.1038/ncomms12555
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    Cited by:

    1. Austin M. K. Fehr & Ayush Agrawal & Faiz Mandani & Christian L. Conrad & Qi Jiang & So Yeon Park & Olivia Alley & Bor Li & Siraj Sidhik & Isaac Metcalf & Christopher Botello & James L. Young & Jacky E, 2023. "Integrated halide perovskite photoelectrochemical cells with solar-driven water-splitting efficiency of 20.8%," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    2. Huaiqing Luo & Pengwei Li & Junjie Ma & Xue Li & He Zhu & Yajie Cheng & Qin Li & Qun Xu & Yiqiang Zhang & Yanlin Song, 2023. "Bioinspired “cage traps” for closed-loop lead management of perovskite solar cells under real-world contamination assessment," Nature Communications, Nature, vol. 14(1), pages 1-14, December.

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