Abstract
We report here the first electrochemical oxidation-reduction cycle procedure to roughen gold substrates in 0.1 N HCl aqueous solution containing 1 mM rutile TiO2 nanoparticles under the irradiation of UV light. It is encouraging to find that the oxidized peak in the anodic scan, which is responsible for the surface-enhanced Raman scattering, increases significantly due to the effect of adding TiO2 under an electric field and UV irradiation. Moreover, the SERS spectrum of polypyrrole electrodeposited on the corresponding roughened gold substrate exhibits a 5-fold higher intensity compared to that without the contribution of TiO2 nanoparticles.
| Original language | English |
|---|---|
| Pages (from-to) | 14897-14900 |
| Number of pages | 4 |
| Journal | Journal of Physical Chemistry B |
| Volume | 108 |
| Issue number | 39 |
| DOIs | |
| Publication status | Published - Sep 30 2004 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
Effect of TiO2 nanoparticles on the improved surface-enhanced raman scattering of polypyrrole deposited on roughened gold substrates. / Liu, Yu Chuan; Lin, Ping I.; Chen, Yit Tsong; Ger, Ming Der; Lan, Kuo Lung; Lin, Chih Lung.
In: Journal of Physical Chemistry B, Vol. 108, No. 39, 30.09.2004, p. 14897-14900.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of TiO2 nanoparticles on the improved surface-enhanced raman scattering of polypyrrole deposited on roughened gold substrates
AU - Liu, Yu Chuan
AU - Lin, Ping I.
AU - Chen, Yit Tsong
AU - Ger, Ming Der
AU - Lan, Kuo Lung
AU - Lin, Chih Lung
PY - 2004/9/30
Y1 - 2004/9/30
N2 - We report here the first electrochemical oxidation-reduction cycle procedure to roughen gold substrates in 0.1 N HCl aqueous solution containing 1 mM rutile TiO2 nanoparticles under the irradiation of UV light. It is encouraging to find that the oxidized peak in the anodic scan, which is responsible for the surface-enhanced Raman scattering, increases significantly due to the effect of adding TiO2 under an electric field and UV irradiation. Moreover, the SERS spectrum of polypyrrole electrodeposited on the corresponding roughened gold substrate exhibits a 5-fold higher intensity compared to that without the contribution of TiO2 nanoparticles.
AB - We report here the first electrochemical oxidation-reduction cycle procedure to roughen gold substrates in 0.1 N HCl aqueous solution containing 1 mM rutile TiO2 nanoparticles under the irradiation of UV light. It is encouraging to find that the oxidized peak in the anodic scan, which is responsible for the surface-enhanced Raman scattering, increases significantly due to the effect of adding TiO2 under an electric field and UV irradiation. Moreover, the SERS spectrum of polypyrrole electrodeposited on the corresponding roughened gold substrate exhibits a 5-fold higher intensity compared to that without the contribution of TiO2 nanoparticles.
UR - http://www.scopus.com/inward/record.url?scp=6044267864&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=6044267864&partnerID=8YFLogxK
U2 - 10.1021/jp0491764
DO - 10.1021/jp0491764
M3 - Article
VL - 108
SP - 14897
EP - 14900
JO - Journal of Physical Chemistry B Materials
JF - Journal of Physical Chemistry B Materials
SN - 1520-6106
IS - 39
ER -