Hydrothermally grown oriented ZnO nanorod arrays for gas sensing applications

J. X. Wang; X. W. Sun; Y. Yang; H. Huang; Y. C. Lee; O. K. Tan; L. Vayssieres

doi:10.1088/0957-4484/17/19/037

Hydrothermally grown oriented ZnO nanorod arrays for gas sensing applications

J. X. Wang, X. W. Sun^*, Y. Yang, H. Huang, Y. C. Lee, O. K. Tan, L. Vayssieres

^*Corresponding author for this work

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

721 Citations (Scopus)

Abstract

C-axis vertically aligned ZnO nanorod arrays were synthesized on a ZnO thin film through a simple hydrothermal route. The nanorods have a diameter of 30-100nm and a length of about several hundred nanometres. The gas sensor fabricated from ZnO nanorod arrays showed a high sensitivity to H₂ from room temperature to a maximum sensitivity at 250 °C and a detection limit of 20ppm. In addition, the ZnO gas sensor also exhibited excellent responses to NH₃ and CO exposure. Our results demonstrate that the hydrothermally grown vertically aligned ZnO nanorod arrays are very promising for the fabrication of cost effective and high performance gas sensors.

Original language	English
Article number	037
Pages (from-to)	4995-4998
Number of pages	4
Journal	Nanotechnology
Volume	17
Issue number	19
DOIs	https://doi.org/10.1088/0957-4484/17/19/037
Publication status	Published - Oct 14 2006
Externally published	Yes

ASJC Scopus Subject Areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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abstract = "C-axis vertically aligned ZnO nanorod arrays were synthesized on a ZnO thin film through a simple hydrothermal route. The nanorods have a diameter of 30-100nm and a length of about several hundred nanometres. The gas sensor fabricated from ZnO nanorod arrays showed a high sensitivity to H2 from room temperature to a maximum sensitivity at 250 °C and a detection limit of 20ppm. In addition, the ZnO gas sensor also exhibited excellent responses to NH3 and CO exposure. Our results demonstrate that the hydrothermally grown vertically aligned ZnO nanorod arrays are very promising for the fabrication of cost effective and high performance gas sensors.",

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AU - Wang, J. X.

AU - Sun, X. W.

AU - Yang, Y.

AU - Huang, H.

AU - Lee, Y. C.

AU - Tan, O. K.

AU - Vayssieres, L.

PY - 2006/10/14

Y1 - 2006/10/14

N2 - C-axis vertically aligned ZnO nanorod arrays were synthesized on a ZnO thin film through a simple hydrothermal route. The nanorods have a diameter of 30-100nm and a length of about several hundred nanometres. The gas sensor fabricated from ZnO nanorod arrays showed a high sensitivity to H2 from room temperature to a maximum sensitivity at 250 °C and a detection limit of 20ppm. In addition, the ZnO gas sensor also exhibited excellent responses to NH3 and CO exposure. Our results demonstrate that the hydrothermally grown vertically aligned ZnO nanorod arrays are very promising for the fabrication of cost effective and high performance gas sensors.

AB - C-axis vertically aligned ZnO nanorod arrays were synthesized on a ZnO thin film through a simple hydrothermal route. The nanorods have a diameter of 30-100nm and a length of about several hundred nanometres. The gas sensor fabricated from ZnO nanorod arrays showed a high sensitivity to H2 from room temperature to a maximum sensitivity at 250 °C and a detection limit of 20ppm. In addition, the ZnO gas sensor also exhibited excellent responses to NH3 and CO exposure. Our results demonstrate that the hydrothermally grown vertically aligned ZnO nanorod arrays are very promising for the fabrication of cost effective and high performance gas sensors.

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Hydrothermally grown oriented ZnO nanorod arrays for gas sensing applications

Abstract

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