Pt/In2S3/CdS/Cu2ZnSnS4 薄膜作为一种高效稳定的光阳极，用于太阳光辐射下的水还原。
Pt/In2S3/CdS/Cu2ZnSnS4 Thin Film as an Efficient and Stable Photocathode for Water Reduction under Sunlight Radiation.
机构信息
Research Center for Solar Energy Chemistry, Osaka University , 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
Department of Chemical System Engineering, School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
出版信息
J Am Chem Soc. 2015 Oct 28;137(42):13691-7. doi: 10.1021/jacs.5b09015. Epub 2015 Oct 19.
An electrodeposited Cu2ZnSnS4 (CZTS) compact thin film modified with an In2S3/CdS double layer and Pt deposits (Pt/In2S3/CdS/CZTS) was used as a photocathode for water splitting of hydrogen production under simulated sunlight (AM 1.5G) radiation. Compared to platinized electrodes based on a bare CZTS film (Pt/CZTS) and a CZTS film modified with a CdS single layer (Pt/CdS/CZTS), the Pt/In2S3/CdS/CZTS electrode exhibited a significantly high cathodic photocurrent. Moreover, the coverage of the In2S3 layer was found to be effective for stabilization against degradation induced by photocorrosion of the CdS layer. Bias-free water splitting with a power conversion efficiency of 0.28% was achieved by using a simple two-electrode cell consisting of the Pt/In2S3/CdS/CZTS photocathode and a BiVO4 photoanode.
一种电沉积的 Cu2ZnSnS4（CZTS）致密薄膜，经过 In2S3/CdS 双层和 Pt 沉积修饰（Pt/In2S3/CdS/CZTS），用作在模拟太阳光（AM 1.5G）辐射下分解水制氢的光阴极。与基于裸 CZTS 薄膜的 Pt 电极（Pt/CZTS）和经过 CdS 单层修饰的 CZTS 薄膜的 Pt 电极（Pt/CdS/CZTS）相比，Pt/In2S3/CdS/CZTS 电极表现出了显著更高的阴极光电流。此外，发现 In2S3 层的覆盖对于抑制 CdS 层光腐蚀引起的降解是有效的。使用由 Pt/In2S3/CdS/CZTS 光阴极和 BiVO4 光阳极组成的简单两电极电池，可以实现无偏压的水分解，其功率转换效率为 0.28%。
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