Synthesis and Photoelectrochemical Property of Urchin-like Zn/ZnO Core-Shell Structures
Synthesis and Photoelectrochemical Property of Urchin-like Zn/ZnO Core-Shell Structures
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DOI：
10.1021/jp8107254
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发表时间：
2009-06-25
影响因子：
3.7
通讯作者：
Cheng, Hui-Ming
中科院分区：
文献类型：
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作者：
Tang, Dai-Ming;Liu, Gang;Cheng, Hui-Ming
采用热蒸发法在氧化铟锡（ITO）玻璃衬底上制备了海胆状Zn/ZnO核壳结构薄膜。结构表征表明，该杂化材料由微米级球形金属Zn核和由许多径向突出的单晶ZnO纳米棒组成的壳组成。结果表明，Zn核与ITO层直接接触，增强了Zn/ZnO结构与衬底的界面结合和导电性。这种Zn/ZnO核壳结构的理想的光电化学性能的证明。其上级光电响应性能的优异表现可归因于金属-半导体核壳结构、独特的海胆状构型以及活性物质与衬底之间良好的结合。
An urchin-like Zn/ZnO core-shell structure was synthesized and deposited directly on an indium tin oxide (ITO) glass substrate by using a thermal evaporation method. Structural characterization reveals that the hybrid material is composed of a micrometer scale sphere-shaped metallic Zn core and a shell made up of numerous radially protruding single-crystalline ZnO nanorods. It was found that the Zn core makes direct contact with the ITO layer, which enhances the interface bonding and conductance between the Zn/ZnO structure and the substrate. Desirable photoelectrochemical properties of such Zn/ZnO core-shell structures are demonstrated. Their superior photoelectrical response performance can be attributed to the metal-semiconductor core-shell structure, unique urchin-like configuration, and favorable combination between the active material and the substrate.