Large-scale fabrication of highly sensitive SnO 2 nanowire network gas sensors by single step vapor phase growth

In Sung Hwang; Sun Jung Kim; Joong Ki Choi; Jong Jin Jung; Do Joon Yoo; Ki Young Dong; Byeong Kwon Ju; Jong Heun Lee

doi:10.1016/j.snb.2012.02.022

Large-scale fabrication of highly sensitive SnO ₂ nanowire network gas sensors by single step vapor phase growth

In Sung Hwang
, Sun Jung Kim
, Joong Ki Choi
, Jong Jin Jung
, Do Joon Yoo
, Ki Young Dong
, Byeong Kwon Ju
, Jong Heun Lee^*

^*Corresponding author for this work

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

48 Citations (Scopus)

Abstract

The SnO ₂ nanowire networks were grown on a laser-scribed Al ₂O ₃ substrate containing 16 sensor elements with Au electrodes and Pt heaters via a single step vapor phase reaction, and their gas sensing characteristics were studied. The sensor showed a high response to 5 ppm NO ₂ (R _g/R _a = 1909, R _g: resistance in gas, R _a: resistance in air) at the sensor temperature of 141°C and high and selective responses to 100 ppm C ₂H ₅OH (R _a/R _g = 301.8-326.4) at 240 and 296°C, which demonstrated that high performance SnO ₂ nanowire network gas sensors can be fabricated on a large scale through a facile and cost-effective route.

Original language	English
Pages (from-to)	97-103
Number of pages	7
Journal	Sensors and Actuators, B: Chemical
Volume	165
Issue number	1
DOIs	https://doi.org/10.1016/j.snb.2012.02.022
Publication status	Published - 2012 Apr

Bibliographical note

Funding Information:
This work (Grants No. 00044932 ) was supported by Business for Cooperative R&D between Industry, Academy, and Research Institute funded by Korea Small and Medium Business Administration in 2011.

Keywords

C H OH
Gas sensors
Large-scale fabrication
NO
SnO nanowire

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1016/j.snb.2012.02.022

Cite this

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title = "Large-scale fabrication of highly sensitive SnO 2 nanowire network gas sensors by single step vapor phase growth",

abstract = "The SnO 2 nanowire networks were grown on a laser-scribed Al 2O 3 substrate containing 16 sensor elements with Au electrodes and Pt heaters via a single step vapor phase reaction, and their gas sensing characteristics were studied. The sensor showed a high response to 5 ppm NO 2 (R g/R a = 1909, R g: resistance in gas, R a: resistance in air) at the sensor temperature of 141°C and high and selective responses to 100 ppm C 2H 5OH (R a/R g = 301.8-326.4) at 240 and 296°C, which demonstrated that high performance SnO 2 nanowire network gas sensors can be fabricated on a large scale through a facile and cost-effective route.",

keywords = "C H OH, Gas sensors, Large-scale fabrication, NO, SnO nanowire",

author = "Hwang, \{In Sung\} and Kim, \{Sun Jung\} and Choi, \{Joong Ki\} and Jung, \{Jong Jin\} and Yoo, \{Do Joon\} and Dong, \{Ki Young\} and Ju, \{Byeong Kwon\} and Lee, \{Jong Heun\}",

note = "Funding Information: This work (Grants No. 00044932 ) was supported by Business for Cooperative R\&D between Industry, Academy, and Research Institute funded by Korea Small and Medium Business Administration in 2011. ",

year = "2012",

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doi = "10.1016/j.snb.2012.02.022",

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AU - Hwang, In Sung

AU - Kim, Sun Jung

AU - Choi, Joong Ki

AU - Jung, Jong Jin

AU - Yoo, Do Joon

AU - Dong, Ki Young

AU - Ju, Byeong Kwon

AU - Lee, Jong Heun

N1 - Funding Information: This work (Grants No. 00044932 ) was supported by Business for Cooperative R&D between Industry, Academy, and Research Institute funded by Korea Small and Medium Business Administration in 2011.

PY - 2012/4

Y1 - 2012/4

N2 - The SnO 2 nanowire networks were grown on a laser-scribed Al 2O 3 substrate containing 16 sensor elements with Au electrodes and Pt heaters via a single step vapor phase reaction, and their gas sensing characteristics were studied. The sensor showed a high response to 5 ppm NO 2 (R g/R a = 1909, R g: resistance in gas, R a: resistance in air) at the sensor temperature of 141°C and high and selective responses to 100 ppm C 2H 5OH (R a/R g = 301.8-326.4) at 240 and 296°C, which demonstrated that high performance SnO 2 nanowire network gas sensors can be fabricated on a large scale through a facile and cost-effective route.

AB - The SnO 2 nanowire networks were grown on a laser-scribed Al 2O 3 substrate containing 16 sensor elements with Au electrodes and Pt heaters via a single step vapor phase reaction, and their gas sensing characteristics were studied. The sensor showed a high response to 5 ppm NO 2 (R g/R a = 1909, R g: resistance in gas, R a: resistance in air) at the sensor temperature of 141°C and high and selective responses to 100 ppm C 2H 5OH (R a/R g = 301.8-326.4) at 240 and 296°C, which demonstrated that high performance SnO 2 nanowire network gas sensors can be fabricated on a large scale through a facile and cost-effective route.

KW - C H OH

KW - Gas sensors

KW - Large-scale fabrication

KW - NO

KW - SnO nanowire

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