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

Dae Hwan Kwon; Eui Hyun Jin; Dae Hwang Yoo; Jong Wook Roh; Dongjun Suh; Walter Commerell; Jeung Soo Huh

doi:10.3390/s22114125

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

Dae Hwan Kwon
, Eui Hyun Jin
, Dae Hwang Yoo
, Jong Wook Roh
, Dongjun Suh
, Walter Commerell
, Jeung Soo Huh

Korea Gas Safety Corporation
Kyungpook National University
Ulm University of Applied Sciences

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

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∙6H2O. 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.

Original language	English
Article number	4125
Journal	Sensors
Volume	22
Issue number	11
DOIs	https://doi.org/10.3390/s22114125
State	Published - 1 Jun 2022

Keywords

ZnO nanorod
heat treatment
metal oxide semiconductor gas sensor
toluene gas

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10.3390/s22114125

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

abstract = "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∙6H2O. 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.",

keywords = "ZnO nanorod, heat treatment, metal oxide semiconductor gas sensor, toluene gas",

author = "Kwon, \{Dae Hwan\} and Jin, \{Eui Hyun\} and Yoo, \{Dae Hwang\} and Roh, \{Jong Wook\} and Dongjun Suh and Walter Commerell and Huh, \{Jeung Soo\}",

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doi = "10.3390/s22114125",

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AU - Kwon, Dae Hwan

AU - Jin, Eui Hyun

AU - Yoo, Dae Hwang

AU - Roh, Jong Wook

AU - Suh, Dongjun

AU - Commerell, Walter

AU - Huh, Jeung Soo

PY - 2022/6/1

Y1 - 2022/6/1

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AB - 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∙6H2O. 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.

KW - ZnO nanorod

KW - heat treatment

KW - metal oxide semiconductor gas sensor

KW - toluene gas

UR - https://www.scopus.com/pages/publications/85130850979

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DO - 10.3390/s22114125

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JO - Sensors

JF - Sensors

IS - 11

M1 - 4125

ER -

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

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Keywords

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