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

研究成果: Conference contribution

摘要

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.

原文English
主出版物標題Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
發行者Trans Tech Publications
頁面1117-1120
頁數4
ISBN(列印)0878493786, 9780878493784
DOIs
出版狀態Published - 2008
事件Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures - Hong Kong, P.R., China
持續時間: 2008 7月 282008 7月 31

出版系列

名字Advanced Materials Research
47-50 PART 2
ISSN(列印)1022-6680

Other

OtherMulti-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
國家/地區China
城市Hong Kong, P.R.
期間08-07-2808-07-31

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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