Growth of zinc oxide nanowires and nanobelts for gas sensing applications

被引：64

作者：

Hossain, MK ^{[1
]}

Ghosh, SC ^{[1
]}

Boontongkong, Y ^{[1
]}

Thanachayanont, C ^{[1
]}

Dutta, J ^{[1
]}

机构：

[1] Asian Inst Technol, Sch Adv Technol, Pathum Thani 12120, Thailand

来源：

Science and Technology of Nanomaterials - ICMAT 2003 | 2005年 / 23卷

关键词：

anisotropic agglomeration; colloid; nanobelt; nanomaterial; nanostructured materials; nanowire; precipitation; semiconductor gas sensor; wet chemical synthesis; zinc oxide;

D O I：

10.4028/www.scientific.net/JMNM.23.27

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zinc Oxide (ZnO) is a very useful as a solid state gas sensor material. In chemical sensing the surface and interface interactions between the analyte molecules and the sensing material is all but important that is read through the changes in electrical conductance. In that sense, nano-objects with a large surface atom/bulk atom ratio, like nanoparticles and nanowires, are potentially the best chemical sensors. The mechanism envisioned involves the adsorption (and eventually diffusion) of the analyte molecule at the surface that induces a change in the electrical resistance of the nano-object. The most convenient way to measure changes in electrical resistance in such devices is to obtain the specific material as nanowires or as connected nanoparticles. Here, we will discuss about a low-temperature wet-chemical process of synthesizing ZnO nanoparticles, nanowires and nanobelts for application as gas sensors.

引用

页码：27 / 30

页数：4

共 12 条

[1] Cross-reactive chemical sensor arrays [J].