Next Article in Journal
Thermography and Sonic Anemometry to Analyze Air Heaters in Mediterranean Greenhouses
Previous Article in Journal
Non-Contact Translation-Rotation Sensor Using Combined Effects of Magnetostriction and Piezoelectricity
Sensors 2012, 12(10), 13842-13851; doi:10.3390/s121013842
Article

Synthesis of ZnO Nanostructures for Low Temperature CO and UV Sensing

1
, 2,3,* , 4
, 3
 and 1
1 Thin Films Technology Laboratory, Department of Physics, COMSATS Institute of Information Technology, Islamabad 44000, Pakistan 2 Alamoudi Water Chair, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia 3 Centre for Micro & Nano Devices, Department of Physics, COMSATS Institute of Information Technology, Islamabad 44000, Pakistan 4 Center of Excellence for Research in Engineering Materials (CEREM), King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
* Author to whom correspondence should be addressed.
Received: 26 August 2012 / Revised: 10 October 2012 / Accepted: 10 October 2012 / Published: 16 October 2012
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [795 KB, uploaded 21 June 2014]   |   Browse Figures

Abstract

In this paper, synthesis and results of the low temperature sensing of carbon monoxide (CO) gas and room temperature UV sensors using one dimensional (1-D) ZnO nanostructures are presented. Comb-like structures, belts and rods, and needle-shaped nanobelts were synthesized by varying synthesis temperature using a vapor transport method. Needle-like ZnO nanobelts are unique as, according to our knowledge, there is no evidence of such morphology in previous literature. The structural, morphological and optical characterization was carried out using X-ray diffraction, scanning electron microscopy and diffused reflectance spectroscopy techniques. It was observed that the sensing response of comb-like structures for UV light was greater as compared to the other grown structures. Comb-like structure based gas sensors successfully detect CO at 75 °C while other structures did not show any response.
Keywords: ZnO nanostructures; gas sensor; CO sensor; UV sensor; optical properties ZnO nanostructures; gas sensor; CO sensor; UV sensor; optical properties
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Export to BibTeX |
EndNote


MDPI and ACS Style

Amin, M.; Manzoor, U.; Islam, M.; Bhatti, A.S.; Shah, N.A. Synthesis of ZnO Nanostructures for Low Temperature CO and UV Sensing. Sensors 2012, 12, 13842-13851.

View more citation formats

Supplement

Related Articles

Article Metrics

Comments

Citing Articles

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert