A two-step hydrothermally grown ZnO microtube array for CO gas sensing
A two-step hydrothermally grown ZnO microtube array for CO gas sensing
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DOI：
10.1007/s00339-007-4076-8
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发表时间：
2007-09-01
影响因子：
2.7
通讯作者：
Kwong, D. L.
中科院分区：
文献类型：
--
作者：
Wang, J. X.;Sun, X. W.;Kwong, D. L.
采用两步水热法大规模制备了管状ZnO微结构阵列。多孔ZnO管状结构，然后用于构建一个气体传感器CO检测。该微阵列气体传感器对不同浓度的CO具有灵敏的响应，最佳温度为250 ℃。由于大的表面积与体积比，微管阵列的灵敏度约为ZnO棒的两倍。我们的研究结果表明，这种简单的两步方法制造的大规模管状微结构阵列可以潜在地用于气体传感器的应用与改进的性能。
Tubular ZnO microstructure arrays were fabricated on a large scale by a two-step hydrothermal method. The porous ZnO tubular structures were then used to construct a gas sensor for CO detection. The microtube array gas sensor showed sensitive response to different concentration of CO with an optimum temperature of 250 degrees C. Because of the large surface to volume ratio, the sensitivity of the microtube arrays was about twice of that of the ZnO rods. Our results indicate that this simple two-step method for fabrication of large-scale tubular microstructure arrays can be potentially used in gas sensor applications with improved performance.