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Title: p-type Bi0.4Sb1.6Te3 nanocomposites with enhanced figure of merit
Authors: Fan, Shufen
Zhao, Junnan
Guo, Jun
Yan, Qingyu
Ma, Jan
Hng, Huey Hoon
Keywords: DRNTU::Engineering::Materials::Composite materials
Issue Date: 2010
Source: Fan, S., Zhao, J., Guo, J., Yan, Q., Ma, J., & Hng, H. H. (2010). p-type Bi0.4Sb1.6Te3 nanocomposites with enhanced figure of merit. Applied physics letters, 96(18), 182104-.
Series/Report no.: Applied physics letters
Abstract: We report enhanced figure of merit, ZT, in p-type Bi0.4Sb1.6Te3 nanocomposites fabricated by a rapid and high throughput method of mixing nanostructured Bi0.4Sb1.6Te3 particles obtained through melt spinning with micronsized particles obtained via solid state reaction. Due to effective scattering of phonons over a wide wavelength spectrum, low thermal conductivity, and moderately good power factor were obtained in the nanocomposites to achieve ZT above 1.5 at room temperature. A maximum ZT of 1.80 was attained at 43 °C for the nanocomposite consisting 40 wt % nanoinclusions. This was a 56% increment over the bulk sample, and the highest ZT reported for Bi2Te3-based materials.
DOI: 10.1063/1.3427427
Rights: © 2010 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at: [DOI:]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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