A novel gas-ionization sensor based on aligned multi-walled carbon nanotubes

被引：34

作者：

Hui, Guohua ^{[1
]}

Wu, Lili

Pan, Min

Chen, Yuquan

Li, Ting

Zhang, Xiaobin

机构：

[1] Zhejiang Univ, Biosensor Natl Special Lab, Biomed Engn Key Lab Educ Minist, Dept Biomed Engn, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ, Inst Mat Sci & Microstruct, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2006年 / 17卷 / 10期

关键词：

gas sensor; corona discharge; breakdown voltage; discharge current; carbon nanotube;

D O I：

10.1088/0957-0233/17/10/034

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

In this paper, we propose a novel gas-ionization sensor based on aligned multi-walled carbon nanotubes (MWNT) at normal temperature and pressure. It consists of an Al plate electrode, a plastic thin film and a MWNT electrode. Breakdown voltages and discharge currents are recorded through a peripheral detecting circuit. I-V curves formed by cubic spline interpolation algorithm utilizing experimental data help the sensor system improve the detecting accuracy. Some experiments are conducted in order to explore MWNT gas sensor properties, such as the effect of interelectrode distance and environmental factors. The novel MWNT-based gas-ionization sensor described here exhibits high accuracy, repeatability and stability. The sensor is promising for use in various fields.

引用

页码：2799 / 2805

页数：7

共 14 条

[1]

Preparation of aligned carbon nanotubes with prescribed dimensions: Template synthesis and sonication cutting approach [J].