Highly flexible and transparent single wall carbon nanotube network gas sensors fabricated on PDMS substrates

Chi Won Cho; Chae Hyun Lim; Chang Seung Woo; Hyung Suk Jeon; Bonghyun Park; Heongkyu Ju; Cheol Jin Lee; Sunglyul Maeng; Ki Chul Kim; Sang Hyeob Kim; Seung Beck Lee

doi:10.1557/proc-0922-u11-10

Highly flexible and transparent single wall carbon nanotube network gas sensors fabricated on PDMS substrates

Chi Won Cho, Chae Hyun Lim, Chang Seung Woo, Hyung Suk Jeon, Bonghyun Park, Heongkyu Ju, Cheol Jin Lee, Sunglyul Maeng, Ki Chul Kim, Sang Hyeob Kim, Seung Beck Lee

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

We report on the basic characteristics and gas sensing operation of density controlled single-walled carbon nanotube (SWCNT) thin films on poly(dimethyl siloxane) (PDMS) substrates. The vacuum filteration and PDMS mold transfer method allowed the density of SWCNT distributed to have non-local uniformity. The optical transparency of the SWCNT thin films was inversely proportional to SWCNT density and conductivity. The flexible SWCNT thin film showed high mechanical stability with negligible change in conductance after being bent by 180°. We evaluated its gas sensing operation depending on SWCNT density and bias voltage. It was shown that lower SWCNT density thin films had higher sensitivity to NH₃ gas, which may be due to higher exposed surface area for lower density SWCNT thin films. Also, we found that lower bias voltage devices showed faster recovery times. The results show that vacuum filteration and mold transfer method produced flexible SWCNT thin films that have stable mechanical and electrical characteristics and also stable gas sensing capabilities making them applicable to future flexible integrated sensors.

Original language	English
Title of host publication	Organic and Inorganic Nanotubes
Subtitle of host publication	From Molecular to Submicron Structures
Publisher	Materials Research Society
Pages	95-101
Number of pages	7
ISBN (Print)	1558998799, 9781558998797
DOIs	https://doi.org/10.1557/proc-0922-u11-10
Publication status	Published - 2006
Event	2006 MRS Spring Meeting - San Francisco, CA, United States Duration: 2006 Apr 17 → 2006 Apr 21

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	922
ISSN (Print)	0272-9172

Other

Other	2006 MRS Spring Meeting
Country/Territory	United States
City	San Francisco, CA
Period	06/4/17 → 06/4/21

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/proc-0922-u11-10

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Cho, C. W., Lim, C. H., Woo, C. S., Jeon, H. S., Park, B., Ju, H., Lee, C. J., Maeng, S., Kim, K. C., Kim, S. H., & Lee, S. B. (2006). Highly flexible and transparent single wall carbon nanotube network gas sensors fabricated on PDMS substrates. In Organic and Inorganic Nanotubes: From Molecular to Submicron Structures (pp. 95-101). (Materials Research Society Symposium Proceedings; Vol. 922). Materials Research Society. https://doi.org/10.1557/proc-0922-u11-10

Highly flexible and transparent single wall carbon nanotube network gas sensors fabricated on PDMS substrates. / Cho, Chi Won; Lim, Chae Hyun; Woo, Chang Seung et al.
Organic and Inorganic Nanotubes: From Molecular to Submicron Structures. Materials Research Society, 2006. p. 95-101 (Materials Research Society Symposium Proceedings; Vol. 922).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Cho, CW, Lim, CH, Woo, CS, Jeon, HS, Park, B, Ju, H, Lee, CJ, Maeng, S, Kim, KC, Kim, SH & Lee, SB 2006, Highly flexible and transparent single wall carbon nanotube network gas sensors fabricated on PDMS substrates. in Organic and Inorganic Nanotubes: From Molecular to Submicron Structures. Materials Research Society Symposium Proceedings, vol. 922, Materials Research Society, pp. 95-101, 2006 MRS Spring Meeting, San Francisco, CA, United States, 06/4/17. https://doi.org/10.1557/proc-0922-u11-10

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title = "Highly flexible and transparent single wall carbon nanotube network gas sensors fabricated on PDMS substrates",

abstract = "We report on the basic characteristics and gas sensing operation of density controlled single-walled carbon nanotube (SWCNT) thin films on poly(dimethyl siloxane) (PDMS) substrates. The vacuum filteration and PDMS mold transfer method allowed the density of SWCNT distributed to have non-local uniformity. The optical transparency of the SWCNT thin films was inversely proportional to SWCNT density and conductivity. The flexible SWCNT thin film showed high mechanical stability with negligible change in conductance after being bent by 180°. We evaluated its gas sensing operation depending on SWCNT density and bias voltage. It was shown that lower SWCNT density thin films had higher sensitivity to NH3 gas, which may be due to higher exposed surface area for lower density SWCNT thin films. Also, we found that lower bias voltage devices showed faster recovery times. The results show that vacuum filteration and mold transfer method produced flexible SWCNT thin films that have stable mechanical and electrical characteristics and also stable gas sensing capabilities making them applicable to future flexible integrated sensors.",

author = "Cho, {Chi Won} and Lim, {Chae Hyun} and Woo, {Chang Seung} and Jeon, {Hyung Suk} and Bonghyun Park and Heongkyu Ju and Lee, {Cheol Jin} and Sunglyul Maeng and Kim, {Ki Chul} and Kim, {Sang Hyeob} and Lee, {Seung Beck}",

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doi = "10.1557/proc-0922-u11-10",

language = "English",

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AU - Cho, Chi Won

AU - Lim, Chae Hyun

AU - Woo, Chang Seung

AU - Jeon, Hyung Suk

AU - Park, Bonghyun

AU - Ju, Heongkyu

AU - Lee, Cheol Jin

AU - Maeng, Sunglyul

AU - Kim, Ki Chul

AU - Kim, Sang Hyeob

AU - Lee, Seung Beck

PY - 2006

Y1 - 2006

N2 - We report on the basic characteristics and gas sensing operation of density controlled single-walled carbon nanotube (SWCNT) thin films on poly(dimethyl siloxane) (PDMS) substrates. The vacuum filteration and PDMS mold transfer method allowed the density of SWCNT distributed to have non-local uniformity. The optical transparency of the SWCNT thin films was inversely proportional to SWCNT density and conductivity. The flexible SWCNT thin film showed high mechanical stability with negligible change in conductance after being bent by 180°. We evaluated its gas sensing operation depending on SWCNT density and bias voltage. It was shown that lower SWCNT density thin films had higher sensitivity to NH3 gas, which may be due to higher exposed surface area for lower density SWCNT thin films. Also, we found that lower bias voltage devices showed faster recovery times. The results show that vacuum filteration and mold transfer method produced flexible SWCNT thin films that have stable mechanical and electrical characteristics and also stable gas sensing capabilities making them applicable to future flexible integrated sensors.

AB - We report on the basic characteristics and gas sensing operation of density controlled single-walled carbon nanotube (SWCNT) thin films on poly(dimethyl siloxane) (PDMS) substrates. The vacuum filteration and PDMS mold transfer method allowed the density of SWCNT distributed to have non-local uniformity. The optical transparency of the SWCNT thin films was inversely proportional to SWCNT density and conductivity. The flexible SWCNT thin film showed high mechanical stability with negligible change in conductance after being bent by 180°. We evaluated its gas sensing operation depending on SWCNT density and bias voltage. It was shown that lower SWCNT density thin films had higher sensitivity to NH3 gas, which may be due to higher exposed surface area for lower density SWCNT thin films. Also, we found that lower bias voltage devices showed faster recovery times. The results show that vacuum filteration and mold transfer method produced flexible SWCNT thin films that have stable mechanical and electrical characteristics and also stable gas sensing capabilities making them applicable to future flexible integrated sensors.

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SN - 1558998799

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T3 - Materials Research Society Symposium Proceedings

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BT - Organic and Inorganic Nanotubes

PB - Materials Research Society

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Y2 - 17 April 2006 through 21 April 2006

ER -

Highly flexible and transparent single wall carbon nanotube network gas sensors fabricated on PDMS substrates

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