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题名: Composition and Band Gap Tailoring of Crystalline (GaN)(1-x),(ZnO)(x) Solid Solution Nanowires for Enhanced Photoelectrochemical Performance
作者: Li, J;  Liu, BD;  Wu, AM;  Yang, B;  Yang, WJ;  Liu, F;  Zhang, XL;  An, V;  Jiang, X
发表日期: 2018-5-7
摘要: Photoelectrochemical water splitting has emerged as an effective artificial photosynthesis technology to generate clean energy of H-2 from sunlight. The core issue in this reaction system is to develop a highly efficient photoanode with a large fraction of solar light absorption and greater active surface area. In this work, we take advantage of energy band engineering to synthesize (GaN)(1-x)(ZnO)(x) solid solution nanowires with ZnO contents ranging from 10.3% to 47.6% and corresponding band gap tailoring from 3.08 to 2.77 eV on the basis of the Au-assisted VLS mechanism. The morphology of nanowires directly grown on the conductive substrate facilitates the charge transfer and simultaneously improves the surface reaction sites. As a result, a photocurrent approximately 10 times larger than that for a conventional powder-based photoanode is obtained, which indicates the potential of (GaN)(1-x)(ZnO)(x) nanowires in the preparation of superior photoanodes for enhanced water splitting. It is anticipated that the water-splitting capability of (GaN)(1-x)(ZnO)(x) nanowire can be further increased through alignment control for enhanced visible light absorption and reduction of charge transfer resistance.
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Recommended Citation:
Li, J,Liu, BD,Wu, AM,et al. Composition And Band Gap Tailoring Of Crystalline (gan)(1-x),(zno)(x) Solid Solution Nanowires For Enhanced Photoelectrochemical Performance[J]. Inorganic Chemistry,2018,57(9):5240-5248.

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