Abstract
Mesoporous TiO 2 thin films containing Au nanoparticles were synthesized via solgel and evaporation-induced self-assembly processes. In this work, the effect of surfactant concentration on the pore structure of mesoporous TiO 2 thin films was investigated and Au nanoparticles were introduced to enhance the electrical conductivity of mesoporous TiO 2 without collapse of the pore structure. Pore structure was analyzed with small angle X-ray diffraction and grazing incidence small angle X-ray scattering. Crystallization of TiO 2 was analyzed with wide angle X-ray diffraction. Increased surfactant concentration led to a corresponding increase in the porosity of mesoporous TiO 2 thin films, but pore ordering in the mesoporous structure was still enhanced. The increasing rate of electrical resistivity associated with increased porosity was reduced in response to decreases in the electron scattering probability, which are strongly dependent on the pore ordering of mesoporous structures. Furthermore, the electrical conductivity of mesoporous TiO 2 composite thin films was enhanced by the incorporation of Au nanoparticles due to the surface plasmon effect of Au nanoparticles.
| Original language | English |
|---|---|
| Pages (from-to) | 959-962 |
| Number of pages | 4 |
| Journal | Journal of the Ceramic Society of Japan |
| Volume | 122 |
| Issue number | 1431 |
| DOIs | |
| Publication status | Published - 2014 Nov 1 |
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All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
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Synthesis of Au nanoparticle-incorporated mesoporous TiO 2 composite thin films and their electrical properties . / Hong, Min Hee; Park, Chang Sun; Park, Hyung-Ho.
In: Journal of the Ceramic Society of Japan, Vol. 122, No. 1431, 01.11.2014, p. 959-962.Research output: Contribution to journal › Article
TY - JOUR
T1 - Synthesis of Au nanoparticle-incorporated mesoporous TiO 2 composite thin films and their electrical properties
AU - Hong, Min Hee
AU - Park, Chang Sun
AU - Park, Hyung-Ho
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Mesoporous TiO 2 thin films containing Au nanoparticles were synthesized via solgel and evaporation-induced self-assembly processes. In this work, the effect of surfactant concentration on the pore structure of mesoporous TiO 2 thin films was investigated and Au nanoparticles were introduced to enhance the electrical conductivity of mesoporous TiO 2 without collapse of the pore structure. Pore structure was analyzed with small angle X-ray diffraction and grazing incidence small angle X-ray scattering. Crystallization of TiO 2 was analyzed with wide angle X-ray diffraction. Increased surfactant concentration led to a corresponding increase in the porosity of mesoporous TiO 2 thin films, but pore ordering in the mesoporous structure was still enhanced. The increasing rate of electrical resistivity associated with increased porosity was reduced in response to decreases in the electron scattering probability, which are strongly dependent on the pore ordering of mesoporous structures. Furthermore, the electrical conductivity of mesoporous TiO 2 composite thin films was enhanced by the incorporation of Au nanoparticles due to the surface plasmon effect of Au nanoparticles.
AB - Mesoporous TiO 2 thin films containing Au nanoparticles were synthesized via solgel and evaporation-induced self-assembly processes. In this work, the effect of surfactant concentration on the pore structure of mesoporous TiO 2 thin films was investigated and Au nanoparticles were introduced to enhance the electrical conductivity of mesoporous TiO 2 without collapse of the pore structure. Pore structure was analyzed with small angle X-ray diffraction and grazing incidence small angle X-ray scattering. Crystallization of TiO 2 was analyzed with wide angle X-ray diffraction. Increased surfactant concentration led to a corresponding increase in the porosity of mesoporous TiO 2 thin films, but pore ordering in the mesoporous structure was still enhanced. The increasing rate of electrical resistivity associated with increased porosity was reduced in response to decreases in the electron scattering probability, which are strongly dependent on the pore ordering of mesoporous structures. Furthermore, the electrical conductivity of mesoporous TiO 2 composite thin films was enhanced by the incorporation of Au nanoparticles due to the surface plasmon effect of Au nanoparticles.
UR - http://www.scopus.com/inward/record.url?scp=84911423402&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84911423402&partnerID=8YFLogxK
U2 - 10.2109/jcersj2.122.959
DO - 10.2109/jcersj2.122.959
M3 - Article
AN - SCOPUS:84911423402
VL - 122
SP - 959
EP - 962
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 1431
ER -