Sensors 2012, 12(10), 13842-13851; doi:10.3390/s121013842
Article

Synthesis of ZnO Nanostructures for Low Temperature CO and UV Sensing

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; in revised form: 10 October 2012 / Accepted: 10 October 2012 / Published: 16 October 2012
(This article belongs to the Section Chemical Sensors)
PDF Full-text Download PDF Full-Text [795 KB, uploaded 16 October 2012 14:07 CEST]
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

Supplementary Files

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

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.

AMA Style

Amin M, Manzoor U, Islam M, Bhatti AS, Shah NA. Synthesis of ZnO Nanostructures for Low Temperature CO and UV Sensing. Sensors. 2012; 12(10):13842-13851.

Chicago/Turabian Style

Amin, Muhammad; Manzoor, Umair; Islam, Mohammad; Bhatti, Arshad S.; Shah, Nazar A. 2012. "Synthesis of ZnO Nanostructures for Low Temperature CO and UV Sensing." Sensors 12, no. 10: 13842-13851.

Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert