Formation of Dense Pore Structure by Te Addition in Bi0.5Sb1.5Te3: An Approach to Minimize Lattice Thermal Conductivity
Joint Authors
Mun, Hyeona
Cho, Jung Young
Yang, Sang Sun
Lee, Kyu Hyoung
Kim, Sung Wng
Choi, Soon-Mok
Hasan, Syed Waqar
Kim, Sang Il
Roh, Jong Wook
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-07
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
We herein report the electronic and thermal transport properties of p-type Bi0.5Sb1.5Te3 polycrystalline bulks with dense pore structure.
Dense pore structure was fabricated by vaporization of residual Te during the pressureless annealing of spark plasma sintered bulks of Te coated Bi0.5Sb1.5Te3 powders.
The lattice thermal conductivity was effectively reduced to the value of 0.35 W m−1 K−1 at 300 K mainly due to the phonon scattering by pores, while the power factor was not significantly affected.
An enhanced ZT of 1.24 at 300 K was obtained in spark plasma sintered and annealed bulks of 3 wt.% Te coated Bi0.5Sb1.5Te3 by these synergetic effects.
American Psychological Association (APA)
Hasan, Syed Waqar& Mun, Hyeona& Kim, Sang Il& Cho, Jung Young& Roh, Jong Wook& Yang, Sang Sun…[et al.]. 2013. Formation of Dense Pore Structure by Te Addition in Bi0.5Sb1.5Te3: An Approach to Minimize Lattice Thermal Conductivity. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-1031611
Modern Language Association (MLA)
Hasan, Syed Waqar…[et al.]. Formation of Dense Pore Structure by Te Addition in Bi0.5Sb1.5Te3: An Approach to Minimize Lattice Thermal Conductivity. Journal of Nanomaterials No. 2013 (2013), pp.1-5.
https://search.emarefa.net/detail/BIM-1031611
American Medical Association (AMA)
Hasan, Syed Waqar& Mun, Hyeona& Kim, Sang Il& Cho, Jung Young& Roh, Jong Wook& Yang, Sang Sun…[et al.]. Formation of Dense Pore Structure by Te Addition in Bi0.5Sb1.5Te3: An Approach to Minimize Lattice Thermal Conductivity. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-1031611
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1031611