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

被引：19

作者：

Ha, Tae-Jung ^{[1
]}

Park, Hyung-Ho ^{[1
]}

Jung, Sin-Young ^{[1
]}

Yoon, Seok-Jin ^{[2
]}

Kim, Jin-Sang ^{[2
]}

Jang, Ho Won ^{[2
]}

机构：

[1] Yonsei Univ, Dept Mat Sci & Engn, Seoul 120749, South Korea

[2] KIST, Thin Film Mat Res Ctr, Seoul 130650, South Korea

来源：

THIN SOLID FILMS | 2010年 / 518卷 / 24期

关键词：

Ordered mesoporous TiO2 film; Porosity; Seebeck coefficient; Surfactant template; MOLECULAR-SIEVES; TITANIA;

D O I：

10.1016/j.tsf.2010.04.074

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 mu V/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. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：7196 / 7198

页数：3

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