Abstract
Sensing of ethanol with iron doped ZnO (Fe-ZnO) thin films has been studied in this work. By X-ray diffraction spectroscopy, it is found that ZnO is the main compound in the low-iron (<10%) doped ZnO thin films. ZnFe 2 O 4 is also found as 20-50% of iron are doped on the thin films. The 5% Fe-ZnO thin film has a very high sensitivity (R air /R ethanol > 70) to 1000 ppm of ethanol at 300 K. It seems that iron can promote the sensivity of the ZnO thin film. The thin film doped with a greater amount (20-50%) of iron has, however, a much less sensitivity (<15) to ethanol. The chemical interactions between oxygen of ethanol and zinc on the Fe-ZnO thin film cause changes of the bond distances of Zn-O and Fe-O in the thin films to 1.90 and 1.98 Å which can be restored to 1.91 and 1.97Å, respectively, in the absence of ethanol.
| Original language | English |
|---|---|
| Article number | 316035 |
| Journal | Journal of Nanomaterials |
| Volume | 2009 |
| DOIs | |
| Publication status | Published - 2009 May 21 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
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Sensing of ethanol with nanosize Fe-ZnO thin films. / Kuo, G. H.; Wang, Hong-Paul; Hsu, H. H.; Wang, James; Chiu, Y. M.; Jou, C. J.G.; Hsu, T. F.; Chen, F. L.
In: Journal of Nanomaterials, Vol. 2009, 316035, 21.05.2009.Research output: Contribution to journal › Article
TY - JOUR
T1 - Sensing of ethanol with nanosize Fe-ZnO thin films
AU - Kuo, G. H.
AU - Wang, Hong-Paul
AU - Hsu, H. H.
AU - Wang, James
AU - Chiu, Y. M.
AU - Jou, C. J.G.
AU - Hsu, T. F.
AU - Chen, F. L.
PY - 2009/5/21
Y1 - 2009/5/21
N2 - Sensing of ethanol with iron doped ZnO (Fe-ZnO) thin films has been studied in this work. By X-ray diffraction spectroscopy, it is found that ZnO is the main compound in the low-iron (<10%) doped ZnO thin films. ZnFe 2 O 4 is also found as 20-50% of iron are doped on the thin films. The 5% Fe-ZnO thin film has a very high sensitivity (R air /R ethanol > 70) to 1000 ppm of ethanol at 300 K. It seems that iron can promote the sensivity of the ZnO thin film. The thin film doped with a greater amount (20-50%) of iron has, however, a much less sensitivity (<15) to ethanol. The chemical interactions between oxygen of ethanol and zinc on the Fe-ZnO thin film cause changes of the bond distances of Zn-O and Fe-O in the thin films to 1.90 and 1.98 Å which can be restored to 1.91 and 1.97Å, respectively, in the absence of ethanol.
AB - Sensing of ethanol with iron doped ZnO (Fe-ZnO) thin films has been studied in this work. By X-ray diffraction spectroscopy, it is found that ZnO is the main compound in the low-iron (<10%) doped ZnO thin films. ZnFe 2 O 4 is also found as 20-50% of iron are doped on the thin films. The 5% Fe-ZnO thin film has a very high sensitivity (R air /R ethanol > 70) to 1000 ppm of ethanol at 300 K. It seems that iron can promote the sensivity of the ZnO thin film. The thin film doped with a greater amount (20-50%) of iron has, however, a much less sensitivity (<15) to ethanol. The chemical interactions between oxygen of ethanol and zinc on the Fe-ZnO thin film cause changes of the bond distances of Zn-O and Fe-O in the thin films to 1.90 and 1.98 Å which can be restored to 1.91 and 1.97Å, respectively, in the absence of ethanol.
UR - http://www.scopus.com/inward/record.url?scp=65649141216&partnerID=8YFLogxK
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U2 - 10.1155/2009/316035
DO - 10.1155/2009/316035
M3 - Article
VL - 2009
JO - Journal of Nanomaterials
JF - Journal of Nanomaterials
SN - 1687-4110
M1 - 316035
ER -