Analysis of the Response Characteristics of Toluene Gas Sensors with a ZnO Nanorod Structure by a Heat Treatment Process

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초록

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 C6H12N4 and Zn(NO3)(2)center dot 6H(2)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.

키워드

heat treatment; ZnO nanorod; metal oxide semiconductor gas sensor; toluene gas; MECHANISM; VOCS
제목
Analysis of the Response Characteristics of Toluene Gas Sensors with a ZnO Nanorod Structure by a Heat Treatment Process
저자
Kwon, Dae-Hwan; Jin, Eui-Hyun; Yoo, Dae-Hwang; Roh, Jong-Wook; Suh, Dongjun; Commerell, Walter; Huh, Jeung-Soo
DOI
10.3390/s22114125
발행일
2022-06
유형
Article
저널명
Sensors
권
22
호
11