Vertically ordered hematite nanotube array as an ultrasensitive and rapid response acetone sensor

Do Hong Kim, Young Seok Shim, Jong Myeong Jeon, Hu Young Jeong, Sung Soo Park, Young Woon Kim, Jin Sang Kim, Jong Heun Lee, Ho Won Jang

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Vertically ordered nanotube array is a desirable configuration to improve gas sensing properties of the hematite which is the most abundant and cheapest metal oxide semiconductor on earth but has low and sluggish chemiresistive responses. We have synthesized a vertically aligned, highly ordered hematite nanotube array directly on a patterned SiO2/Si substrate and then it used as a gas sensor without additional processing. The nanotube array sensor shows unprecedentedly ultrahigh and selective responses to acetone with detection limits down to a few parts per billion and response time shorter than 3 s.

Original languageEnglish
Pages (from-to)14779-14784
Number of pages6
JournalACS Applied Materials and Interfaces
Volume6
Issue number17
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Hematite
Acetone
Nanotubes
Sensors
Sensor arrays
Chemical sensors
Gases
Metals
Earth (planet)
Substrates
Processing
ferric oxide

Keywords

  • acetone sensor
  • earth abundant
  • hematite
  • nanotube array
  • ultrasensitive

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Kim, D. H., Shim, Y. S., Jeon, J. M., Jeong, H. Y., Park, S. S., Kim, Y. W., ... Jang, H. W. (2014). Vertically ordered hematite nanotube array as an ultrasensitive and rapid response acetone sensor. ACS Applied Materials and Interfaces, 6(17), 14779-14784. https://doi.org/10.1021/am504156w

Vertically ordered hematite nanotube array as an ultrasensitive and rapid response acetone sensor. / Kim, Do Hong; Shim, Young Seok; Jeon, Jong Myeong; Jeong, Hu Young; Park, Sung Soo; Kim, Young Woon; Kim, Jin Sang; Lee, Jong Heun; Jang, Ho Won.

In: ACS Applied Materials and Interfaces, Vol. 6, No. 17, 01.01.2014, p. 14779-14784.

Research output: Contribution to journalArticle

Kim, DH, Shim, YS, Jeon, JM, Jeong, HY, Park, SS, Kim, YW, Kim, JS, Lee, JH & Jang, HW 2014, 'Vertically ordered hematite nanotube array as an ultrasensitive and rapid response acetone sensor', ACS Applied Materials and Interfaces, vol. 6, no. 17, pp. 14779-14784. https://doi.org/10.1021/am504156w
Kim, Do Hong ; Shim, Young Seok ; Jeon, Jong Myeong ; Jeong, Hu Young ; Park, Sung Soo ; Kim, Young Woon ; Kim, Jin Sang ; Lee, Jong Heun ; Jang, Ho Won. / Vertically ordered hematite nanotube array as an ultrasensitive and rapid response acetone sensor. In: ACS Applied Materials and Interfaces. 2014 ; Vol. 6, No. 17. pp. 14779-14784.
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