Selective growth of ZnO nanorods and its gas sensor application

Shao Lin Zhang; Jeong Ok Lim; Jeung Soo Huh; Wooyoung Lee

doi:10.1109/JSEN.2012.2211005

Selective growth of ZnO nanorods and its gas sensor application

Shao Lin Zhang, Jeong Ok Lim, Jeung Soo Huh, Wooyoung Lee

Department of Materials Science and Engineering

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

16 Citations (Scopus)

Abstract

The facile sonochemical method has been used to selectively grow a ZnO nanorods sensing layer directly on an alumina substrate. The growth region of the ZnO nanorods array is precisely controlled by a pre-coated Pt/Zn seed layer on alumina substrate. No growth of ZnO nanostructure is found on the substrate without seed layer. The grown ZnO nanorods are well aligned and densely packed, with wurtzite crystal structure and flat hexagonal tip. The sensing properties of the obtained ZnO nanorods sensing layer to three kinds of toxic gases (NH ₃, CO, and CH ₄) have been investigated. The sensing observation revealed that the selectively grown ZnO nanorods demonstrated good response, repeatability, and excellent linearity toward toxic gases. This result indicates that selective growth of ZnO nanorods directly on sensor substrate is an accessible and advantageous method for sensor fabrication.

Original language	English
Article number	6256685
Pages (from-to)	3143-3148
Number of pages	6
Journal	IEEE Sensors Journal
Volume	12
Issue number	11
DOIs	https://doi.org/10.1109/JSEN.2012.2211005
Publication status	Published - 2012

Bibliographical note

Funding Information:
Manuscript received June 30, 2011; revised July 20, 2012; accepted July 24, 2012. Date of publication August 1, 2012; date of current version October 4, 2012. This work was supported by the National Research Foundation of Korea through the Converging Research Center Program funded by the Ministry of Education, Science, and Technology under Grant 2012K001351 and Grant 2012K001353. The associate editor coordinating the review of this paper and approving it for publication was Prof. Michael J. Vellekoop.

All Science Journal Classification (ASJC) codes

Instrumentation
Electrical and Electronic Engineering

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10.1109/JSEN.2012.2211005

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title = "Selective growth of ZnO nanorods and its gas sensor application",

abstract = "The facile sonochemical method has been used to selectively grow a ZnO nanorods sensing layer directly on an alumina substrate. The growth region of the ZnO nanorods array is precisely controlled by a pre-coated Pt/Zn seed layer on alumina substrate. No growth of ZnO nanostructure is found on the substrate without seed layer. The grown ZnO nanorods are well aligned and densely packed, with wurtzite crystal structure and flat hexagonal tip. The sensing properties of the obtained ZnO nanorods sensing layer to three kinds of toxic gases (NH 3, CO, and CH 4) have been investigated. The sensing observation revealed that the selectively grown ZnO nanorods demonstrated good response, repeatability, and excellent linearity toward toxic gases. This result indicates that selective growth of ZnO nanorods directly on sensor substrate is an accessible and advantageous method for sensor fabrication.",

author = "Zhang, {Shao Lin} and Lim, {Jeong Ok} and Huh, {Jeung Soo} and Wooyoung Lee",

note = "Funding Information: Manuscript received June 30, 2011; revised July 20, 2012; accepted July 24, 2012. Date of publication August 1, 2012; date of current version October 4, 2012. This work was supported by the National Research Foundation of Korea through the Converging Research Center Program funded by the Ministry of Education, Science, and Technology under Grant 2012K001351 and Grant 2012K001353. The associate editor coordinating the review of this paper and approving it for publication was Prof. Michael J. Vellekoop.",

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AU - Huh, Jeung Soo

AU - Lee, Wooyoung

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Y1 - 2012

N2 - The facile sonochemical method has been used to selectively grow a ZnO nanorods sensing layer directly on an alumina substrate. The growth region of the ZnO nanorods array is precisely controlled by a pre-coated Pt/Zn seed layer on alumina substrate. No growth of ZnO nanostructure is found on the substrate without seed layer. The grown ZnO nanorods are well aligned and densely packed, with wurtzite crystal structure and flat hexagonal tip. The sensing properties of the obtained ZnO nanorods sensing layer to three kinds of toxic gases (NH 3, CO, and CH 4) have been investigated. The sensing observation revealed that the selectively grown ZnO nanorods demonstrated good response, repeatability, and excellent linearity toward toxic gases. This result indicates that selective growth of ZnO nanorods directly on sensor substrate is an accessible and advantageous method for sensor fabrication.

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Selective growth of ZnO nanorods and its gas sensor application

Abstract

Bibliographical note

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