Work

Synthesis and Thermoelectric Properties of Carbon Nanotube-Dispersed Bi2Te3Matrix Composite Powders by Chemical Routes

Year: 2013

Type: article

Abstract: Carbon nanotube-dispersed bismuth telluride matrix (CNT/ $Bi_2Te_3$ ) nanopowders were synthesized by chemical routes followed by a ball-milling process. The microstructures of the synthesized CNT/ $Bi_2Te_3$ nanopowders showed the characteristic microstructure of CNTs dispersed among disc-shaped $Bi_2Te_3$ nanopowders with as an average size of 500 nm in-plane and a few tens of nm in thickness. The prepared nanopowders were sintered into composites with a homogeneous dispersion of CNTs in a $Bi_2Te_3$ matrix. The dimensionless figure-of-merit of the composite showed an enhanced value compared to that of pure $Bi_2Te_3$ at the room temperature due to the reduced thermal conductivity and increased electrical conductivity with the addition of CNTs.

Source: Journal of Korean Powder Metallurgy Institute

DOI: 10.4150/kpmi.2013.20.5.345

Authors: Kyung Tae Kim, Injoon Son, Gook Hyun Ha

Institutions: Korea Institute of Materials Science, Kyungpook National University

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funders: National Research Foundation, National Research Foundation of Korea, Ministry of Education, Science and Technology, Korea Institute of Materials Science

Awards: G1431473950, G8485393229