Effect of porosity on the Seebeck coefficient of mesoporous TiO2 thin films

Tae Jung Ha; Hyung Ho Park; Sin Young Jung; Seok Jin Yoon; Jin Sang Kim; Ho Won Jang

doi:10.1016/j.tsf.2010.04.074

Effect of porosity on the Seebeck coefficient of mesoporous TiO₂ thin films

Tae Jung Ha, Hyung Ho Park, Sin Young Jung, Seok Jin Yoon, Jin Sang Kim, Ho Won Jang

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

Mesoporous TiO₂ films were prepared by using titanium tetraisopropoxide as the titania precursor and triblock copolymer as the structure directing agent. The synthesized mesoporous TiO₂ film was confirmed to have the ordered pore structure with rutile phase by small angle and wide angle X-ray diffraction analyses. The mesoporous TiO₂ film has the porosity range from 21.6 to 35.6%, and its Seebeck coefficient was changed according to its porosity, up to -88.6 μV/K. From the obtained Seebeck coefficient, the ordered mesoporous TiO₂ film was found to be a good candidate of thermal sensing layer of thin film thermal sensor.

Original language	English
Pages (from-to)	7196-7198
Number of pages	3
Journal	Thin Solid Films
Volume	518
Issue number	24
DOIs	https://doi.org/10.1016/j.tsf.2010.04.074
Publication status	Published - 2010 Oct 1

Bibliographical note

Funding Information:
This study was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea .

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.tsf.2010.04.074

Cite this

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title = "Effect of porosity on the Seebeck coefficient of mesoporous TiO2 thin films",

abstract = "Mesoporous TiO2 films were prepared by using titanium tetraisopropoxide as the titania precursor and triblock copolymer as the structure directing agent. The synthesized mesoporous TiO2 film was confirmed to have the ordered pore structure with rutile phase by small angle and wide angle X-ray diffraction analyses. The mesoporous TiO2 film has the porosity range from 21.6 to 35.6%, and its Seebeck coefficient was changed according to its porosity, up to -88.6 μV/K. From the obtained Seebeck coefficient, the ordered mesoporous TiO2 film was found to be a good candidate of thermal sensing layer of thin film thermal sensor.",

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AU - Ha, Tae Jung

AU - Park, Hyung Ho

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AU - Yoon, Seok Jin

AU - Kim, Jin Sang

AU - Jang, Ho Won

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AB - Mesoporous TiO2 films were prepared by using titanium tetraisopropoxide as the titania precursor and triblock copolymer as the structure directing agent. The synthesized mesoporous TiO2 film was confirmed to have the ordered pore structure with rutile phase by small angle and wide angle X-ray diffraction analyses. The mesoporous TiO2 film has the porosity range from 21.6 to 35.6%, and its Seebeck coefficient was changed according to its porosity, up to -88.6 μV/K. From the obtained Seebeck coefficient, the ordered mesoporous TiO2 film was found to be a good candidate of thermal sensing layer of thin film thermal sensor.

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