A Surface Acoustic Wave Ethanol Sensor with Zinc Oxide Nanorods
Joint Authors
Aw, K. C.
Giffney, Timothy J.
Ng, Y. H.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-12-26
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
Surface acoustic wave (SAW) sensors are a class of piezoelectric MEMS sensors which can achieve high sensitivity and excellent robustness.
A surface acoustic wave ethanol sensor using ZnO nanorods has been developed and tested.
Vertically oriented ZnO nanorods were produced on a ZnO/128∘ rotated Y-cut LiNbO3 layered SAW device using a solution growth method with zinc nitrate, hexamethylenetriamine, and polyethyleneimine.
The nanorods have average diameter of 45 nm and height of 1 μm.
The SAW device has a wavelength of 60 um and a center frequency of 66 MHz at room temperature.
In testing at an operating temperature of 270C∘ with an ethanol concentration of 2300 ppm, the sensor exhibited a 24 KHz frequency shift.
This represents a significant improvement in comparison to an otherwise identical sensor using a ZnO thin film without nanorods, which had a frequency shift of 9 KHz.
American Psychological Association (APA)
Giffney, Timothy J.& Ng, Y. H.& Aw, K. C.. 2011. A Surface Acoustic Wave Ethanol Sensor with Zinc Oxide Nanorods. Smart Materials Research،Vol. 2012, no. 2012, pp.1-4.
https://search.emarefa.net/detail/BIM-454867
Modern Language Association (MLA)
Giffney, Timothy J.…[et al.]. A Surface Acoustic Wave Ethanol Sensor with Zinc Oxide Nanorods. Smart Materials Research No. 2012 (2012), pp.1-4.
https://search.emarefa.net/detail/BIM-454867
American Medical Association (AMA)
Giffney, Timothy J.& Ng, Y. H.& Aw, K. C.. A Surface Acoustic Wave Ethanol Sensor with Zinc Oxide Nanorods. Smart Materials Research. 2011. Vol. 2012, no. 2012, pp.1-4.
https://search.emarefa.net/detail/BIM-454867
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-454867
