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

Title
Effect of porosity on the Seebeck coefficient of mesoporous TiO2 thin films
Authors
하태정박형호정신영윤석진김진상장호원
Keywords
Ordered mesoporous TiO2 film; Porosity; Seebeck coefficient; Surfactant template
Issue Date
2010-10
Publisher
Thin solid films
Citation
VOL 518, NO 24, 7196-7198
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.
URI
http://pubs.kist.re.kr/handle/201004/37967
ISSN
0040-6090
Appears in Collections:
KIST Publication > Article
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