Analysis of the Response Characteristics of Toluene Gas Sensors with a ZnO Nanorod Structure by a Heat Treatment Process
oleh: Dae-Hwan Kwon, Eui-Hyun Jin, Dae-Hwang Yoo, Jong-Wook Roh, Dongjun Suh, Walter Commerell, Jeung-Soo Huh
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2022-05-01 |
Deskripsi
The sensing characteristics of toluene gas are monitored by fabricating ZnO nanorod structures. ZnO nanostructured sensor materials are produced on a Zn film via an ultrasonic process in a 0.01 M aqueous solution of C<sub>6</sub>H<sub>12</sub>N<sub>4</sub> and Zn(NO<sub>3</sub>)<sub>2</sub>∙6H<sub>2</sub>O. The response of the sensors subjected to heat treatment in oxygen and nitrogen atmospheres is improved by 20% and 10%, respectively. The improvement is considered to be correlated with the increase in grain size. The relationship between the heat treatment and sensing characteristics is evaluated.