Thermoelectric properties of the hot-pressed Bi-2(Te0.85Se0.15)(3) alloy with addition of BN powders
- Authors
- Lee, SK; Lee, JS; Hyun, DB; Oh, TS
- Issue Date
- Dec-2000
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- bismuth telluride; thermoelectric properties; Peltier effect; phonon scattering; thermal conductivity; figure-of-merit
- Citation
- METALS AND MATERIALS INTERNATIONAL, v.6, no.6, pp.571 - 575
- Journal Title
- METALS AND MATERIALS INTERNATIONAL
- Volume
- 6
- Number
- 6
- Start Page
- 571
- End Page
- 575
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/27323
- DOI
- 10.1007/BF03028101
- ISSN
- 1598-9623
- Abstract
- Thermoelectric properties of the hot-pressed Bi-2(Te0.85Se0.15)(3) alloy were investigated with the addition of BN powders as phonon scattering centers. The Seebeck coefficient and electrical resistivity of the alloy increased as the volume fraction of BN increased. Although the thermal conductivity of the alloy decreased as the volume fraction of BN increased due to the reduction of kappa (el), the lattice thermal conductivity varied little. The figure-of-merit of the alloys, 1.6x10(3)/K without the addition of BN, decreased as the volume fraction of BN increased because the increment of the electrical resistivity was much larger than the decrement of the thermal conductivity due to grain refinement.
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Collections - College of Engineering > Materials Science and Engineering Major > 1. Journal Articles
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