Synthesis and properties of multipod-shaped ZnO nanorods for gas-sensor applications
Synthesis and properties of multipod-shaped ZnO nanorods for gas-sensor applications
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DOI：
10.1007/s00339-004-3075-2
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发表时间：
2005-04-01
影响因子：
2.7
通讯作者：
Wang, TH
中科院分区：
文献类型：
--
作者：
Gao, T;Wang, TH
本文报道了多脚状氧化锌纳米棒的合成、光学性质及其在气敏元件中的应用。多脚状ZnO（M-ZnO）纳米棒由数十根针状纳米棒连接在一个共同的结点上，表现出与四脚状ZnO（T-ZnO）纳米棒不同的结构和光学特性。分别采用M-ZnO和T-ZnO纳米棒制备了气敏元件，并对空气中的乙醇进行了检测。结果表明，与T-ZnO传感器相比，M-ZnO传感器具有更好的传感性能，并对其可能的传感机理进行了讨论。
We reported the synthesis and optical properties of ZnO nanorods with multipod shapes, and their applications as gas sensors. The multipod-shaped ZnO (M-ZnO ) nanorods, having tens of needle-like nanorods united at a common junction, exhibited different structural and optical characters from those of the tetrapod-shaped ZnO (T-ZnO) nanorods. Employing the M-ZnO and the T-ZnO nanorods, respectively, gas sensors were prepared and tested for the detection of ethanol in air. It was found that the M-ZnO devices had an improved sensing performance in comparison with that of the T-ZnO sensors, of which a possible sensing mechanism related to a surface reaction process was discussed.