TY - GEN
T1 - Sensing of ethanol with nanosize FeZnO thin films
AU - Kuo, G. H.
AU - Wang, H. Paul
AU - Hsu, H. H.
AU - Jou, Chih Ju G.
AU - Chiu, Y. M.
AU - Chen, F. L.
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
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U2 - 10.4028/www.scientific.net/amr.47-50.1117
DO - 10.4028/www.scientific.net/amr.47-50.1117
M3 - Conference contribution
AN - SCOPUS:56349127281
SN - 0878493786
SN - 9780878493784
T3 - Advanced Materials Research
SP - 1117
EP - 1120
BT - Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
PB - Trans Tech Publications
T2 - Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
Y2 - 28 July 2008 through 31 July 2008
ER -