Abstract
We prepared fluorine-doped tin oxide (FTO) nanorod films and a conventional FTO thin film for the application of a semiconducting gas sensor by spray pyrolysis method. The lengths of FTO nanorods (FTON, 100 and 500 nm) were controlled by changing deposition times, and FTO thin film (FTOT) was also prepared as a reference. The gas sensitivity test shows FTON with long nanorods had higher sensitivity for both hydrogen and ethanol gases but slow response and recovery times, despite an advantage of the higher gas sensitivity. FTO nanorod film with short length about 100nm showed relatively lower sensitivity, but fast gas response and recovery characteristics. The fast response and recovery for the analyte gases are attributed to the conductance of FTO nanorods, which is closely related to the diameter and length of nanorods.
| Original language | English |
|---|---|
| Article number | 045001 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 51 |
| Issue number | 4 PART 1 |
| DOIs | |
| Publication status | Published - 2012 Apr 1 |
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ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Fast responsive gas sensor of vertically aligned fluorine-doped tin oxide nanorod thin film. / Cho, Chan Woo; Lee, Jong Heun; Riu, Doh Hyung; Kim, Chang Yeoul.
In: Japanese Journal of Applied Physics, Vol. 51, No. 4 PART 1, 045001, 01.04.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fast responsive gas sensor of vertically aligned fluorine-doped tin oxide nanorod thin film
AU - Cho, Chan Woo
AU - Lee, Jong Heun
AU - Riu, Doh Hyung
AU - Kim, Chang Yeoul
PY - 2012/4/1
Y1 - 2012/4/1
N2 - We prepared fluorine-doped tin oxide (FTO) nanorod films and a conventional FTO thin film for the application of a semiconducting gas sensor by spray pyrolysis method. The lengths of FTO nanorods (FTON, 100 and 500 nm) were controlled by changing deposition times, and FTO thin film (FTOT) was also prepared as a reference. The gas sensitivity test shows FTON with long nanorods had higher sensitivity for both hydrogen and ethanol gases but slow response and recovery times, despite an advantage of the higher gas sensitivity. FTO nanorod film with short length about 100nm showed relatively lower sensitivity, but fast gas response and recovery characteristics. The fast response and recovery for the analyte gases are attributed to the conductance of FTO nanorods, which is closely related to the diameter and length of nanorods.
AB - We prepared fluorine-doped tin oxide (FTO) nanorod films and a conventional FTO thin film for the application of a semiconducting gas sensor by spray pyrolysis method. The lengths of FTO nanorods (FTON, 100 and 500 nm) were controlled by changing deposition times, and FTO thin film (FTOT) was also prepared as a reference. The gas sensitivity test shows FTON with long nanorods had higher sensitivity for both hydrogen and ethanol gases but slow response and recovery times, despite an advantage of the higher gas sensitivity. FTO nanorod film with short length about 100nm showed relatively lower sensitivity, but fast gas response and recovery characteristics. The fast response and recovery for the analyte gases are attributed to the conductance of FTO nanorods, which is closely related to the diameter and length of nanorods.
UR - http://www.scopus.com/inward/record.url?scp=84860490282&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860490282&partnerID=8YFLogxK
U2 - 10.1143/JJAP.51.045001
DO - 10.1143/JJAP.51.045001
M3 - Article
AN - SCOPUS:84860490282
VL - 51
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 4 PART 1
M1 - 045001
ER -