期刊
BULLETIN OF MATERIALS SCIENCE
卷 35, 期 3, 页码 347-352出版社
INDIAN ACAD SCIENCES
DOI: 10.1007/s12034-012-0290-x
关键词
Sensor; humidity; TiO2; ZnO; XRD; SEM
资金
- University Grants Commission, New Delhi [33-23-2007]
This paper reports morphological and relative humidity sensing behaviour of ZnO-TiO (2) nanocomposite powder pellets obtained through solid-state reaction route. Resistance of the pellets is observed to decrease with increase in relative humidity in the 10-90% range. Sensing element with 15 wt % of TiO (2) in ZnO shows best results with a sensitivity of 908 M/%RH in 10-90% relative humidity range. This sensing element manifests crystallite size of 71 nm as measured from XRD and average grain size of 207 nm calculated from SEM micrograph. This sensing element manifests low hysteresis, less effect of ageing and good reproducibility. Response and recovery times of this sensing element are measured to be 84 s and 396 s, respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据