ZnO@Au@Cu2O nanotube arrays as efficient visible-light-driven photoelectrod
ZnO@Au@Cu2O nanotube arrays as efficient visible-light-driven photoelectrod
复制标题
ZnO@Au@Cu2O纳米管阵列作为高效可见光驱动光电极
DOI：
10.1016/j.jallcom.2019.05.340
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发表时间：
2019-08-30
影响因子：
6.2
通讯作者：
Jia, Ying
中科院分区：
文献类型：
--
作者：
Fu, Shuyi;Chen, Jirong;Jia, Ying
通过简单的三步法获得了ZnO纳米管阵列，然后将Au纳米颗粒和CU2O纳米晶依次修饰到ZnO纳米管阵列上。通过X射线衍射、扫描电子显微镜、紫外-可见漫反射光谱、X射线光电子能谱和光电流密度对所制备的ZnO@Au@Cu2O纳米管阵列的组成、形貌、光学性质和光电化学性能进行了表征。结果证实，由于局域表面等离子体共振效应、CU2O纳米晶的可见光捕获、p-n结诱导的光生载流子的有效转移和分离以及ZnO@Au@Cu2O纳米管阵列的良好带能匹配，ZnO@Au@Cu2O纳米管阵列对可见光表现出增强的响应，并在可见光下实现了优异的光电流。 (C) 2019 Elsevier B.V. 保留所有权利。
The ZnO nanotube arrays were obtained by a simple three-step method, and then Au nanoparticles and CU2O nanocrystals were decorated onto ZnO nanotube arrays successively. The composition, morphology, optical properties and photoelectrochemical performance of the as-prepared ZnO@Au@Cu2O nanotube arrays were characterized by X-ray diffraction, scanning electron microscopy, UV-vis diffuse reflectance spectra, X-ray photoelectron spectroscopy, and photocurrent densities. The results confirmed that ZnO@Au@Cu2O nanotube arrays showed enhanced response to visible light and achieved an excellent photocurrent under visible light due to the localized surface plasmon resonance effect, visible light harvesting of CU2O nanocrystals, effective transfer and separation of photo-generated charge carriers induced by p-n junction and well band energy match of the ZnO@Au@Cu2O nanotube arrays. (C) 2019 Elsevier B.V. All rights reserved.