Surface plasmon resonance enhanced light absorption of Au decorated composition-tuned ZnO/ZnxCd1-xSeyTe1-y core/shell nanowires for efficient H2 production

被引：14

作者：

Zhan, Xueying ^{[1
]}

Bao, Yanjun ^{[2
]}

Wang, Fengmei ^{[1
]}

Wang, Qisheng ^{[1
]}

Cheng, Zhongzhou ^{[1
]}

Wang, Zhenxing ^{[1
]}

Xu, Kai ^{[1
]}

Fang, Zheyu ^{[2
]}

He, Jun ^{[1
]}

机构：

[1] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China

[2] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 12期

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

CORE-SHELL; CHARGE SEPARATION; ARRAYS; HETEROSTRUCTURES; PHOTOCATALYSIS; NANOPARTICLES; DYNAMICS; NANORODS;

D O I：

10.1063/1.4916397

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Efficient solar-to-hydrogen photoelectrodes need harvest sunlight to capacity and improve the separation efficiency of charge carriers for chemical reactions in water. Herein, we demonstrate the merits of type-II heterostructures with component controllable quaternary shells (ZnxCd1-xSeyTe1-y) and the surface plasmon resonance of Au nanoparticles to satisfy photocatalytic requirements. Our ZnO/ZnxCd1-xSeyTe1-y/Au nanostructures display a broad absorption edge from UV to NIR (Near Infrared) and high charge separation efficiency. The finite element method simulation and UV-vis-NIR diffuse reflectance spectroscopy confirm the enhanced absorption of visible light. Furthermore, these ZnO/ZnxCd1-xSeyTe1-y/Au heterostructures show remarkable hydrogen-production ability from water, suggesting a type of photocatalytic paradigm for H-2 production. (C) 2015 AIP Publishing LLC.

引用

页数：5

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