Humidity sensing properties of KCl-doped ZnO nanofibers with super-rapid response and recovery
Humidity sensing properties of KCl-doped ZnO nanofibers with super-rapid response and recovery
复制标题
KCl掺杂ZnO纳米纤维的超快速响应和恢复湿度传感特性
DOI：
10.1016/j.snb.2009.01.042
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发表时间：
2009-04-02
影响因子：
8.4
通讯作者：
Zheng, Xuejun
中科院分区：
文献类型：
--
作者：
Qi, Qi;Zhang, Tong;Zheng, Xuejun
采用静电纺丝法制备了KCl掺杂的ZnO纳米纤维，并通过X射线衍射（XRD）和扫描电子显微镜（SEM）对其进行了表征。这些纳米纤维的湿敏性能进行了研究，通过丝网印刷在陶瓷基板上的一对Ag-Pd叉指电极。实验结果表明，KCl掺杂5.7wt%的ZnO纳米纤维在100 Hz下具有超快的响应和恢复速度，高响应值，良好的重现性、线性度、选择性和稳定性。特别是，响应时间和恢复时间分别仅为约2和1 s。这些结果表明KCl掺杂ZnO纳米纤维在制备高性能湿度传感器方面具有潜在的应用前景。(C)2009年由Elsevier B. V.出版
KCl-doped ZnO nanofibers are synthesized via an electrospinning method and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The humidity sensing properties of these nanofibers are investigated by screen-printing them on a ceramic substrate with a pair of Ag-Pd inter-digitated electrodes. The experimental results show that the 5.7wt% KCl-doped ZnO nanofibers hold super-rapid response and recovery, high response value, good reproducibility, linearity, selectivity, and stability at 100 Hz. Especially, the response time and recovery time is only about 2 and 1s, respectively. These results demonstrate the potential application of KCl-doped ZnO nanofibers for fabricating high performance humidity sensors. (C) 2009 Published by Elsevier B.V.