Sensing of ethanol with nanosize FeZnO thin films

G. H. Kuo, H. Paul Wang, H. H. Hsu, Chih Ju G. Jou, Y. M. Chiu, F. L. Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the present work, sensing of ethanol on the ZnO thin films doped with Fe (5-50%) have been investigated. Nature of the sensing species in the nanosize Fe-doped ZnO (FeZnO) thin films has also been studied by in situ extended X-ray absorption fine structure (EXAFS) spectroscopy. By XRD, it is found that ZnO and ZnFe2O4 are the main compounds in the ZnO-Fe thin films. The thin film containing 5% of Fe has a high sensitivity (Rair/R ethanol>80) when sensing of ethanol at 300 K. On the contrary, the thin films with Fe fractions of 20-50% have a very low sensitivity to ethanol (Rair/Rethanol<15). In the presence of ethanol, the EXAFS spectra show that the bond distances of Zn-O and Fe-O in the thin films are 1.90 and 1.98 Å, respectively and restored to 1.91 and 1.97 Å in the absence of ethanol.

Original languageEnglish
Title of host publicationMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
PublisherTrans Tech Publications
Pages1117-1120
Number of pages4
ISBN (Print)0878493786, 9780878493784
Publication statusPublished - 2008 Jan 1
EventMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures - Hong Kong, P.R., China
Duration: 2008 Jul 282008 Jul 31

Publication series

NameAdvanced Materials Research
Volume47-50 PART 2
ISSN (Print)1022-6680

Other

OtherMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
CountryChina
CityHong Kong, P.R.
Period08-07-2808-07-31

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Fingerprint Dive into the research topics of 'Sensing of ethanol with nanosize FeZnO thin films'. Together they form a unique fingerprint.

Cite this