Thermoelectric Properties of Bi2Te3-In2Se3 Composite Thin Films Prepared by Co-Sputtering

Title
Thermoelectric Properties of Bi2Te3-In2Se3 Composite Thin Films Prepared by Co-Sputtering
Authors
김광천최원철김현재여호기김진상박찬
Keywords
Thermoelectric; Bi2Te3; In2Se3 Nanodots; Phase Separation
Issue Date
2012-04
Publisher
Journal of nanoscience and nanotechnology
Citation
VOL 12, NO 4, 3633-3636
Abstract
Bi2Te3–In2Se3 films were prepared by co-sputtering followed by annealing, and their structural and thermoelectric properties were investigated. The immiscible nature of the two alloys results in precipitation of the second phase, thus leading to structures with self-assembled dots that are a few nanometers in scale. HAADF-STEM and HRTEM were used to confirm that In2Se3 nanodots that were a few nanometers in size did indeed form in the Bi2Te3 thin film. It was found that the incorporation of these nanodots can reduce the thermal conductivity of the thin film.
URI
http://pubs.kist.re.kr/handle/201004/42916
ISSN
15334880
Appears in Collections:
KIST Publication > Article
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