BROWSE

Related Researcher

Author

Jo, Wook
Sustainable Functional Ceramics Lab
Research Interests
  • Lead-free piezoceramics, ultra - low temperature sintering, ferroelectrics, relaxor ferroelectrics, 2D materials, magnetoelectric materials, multiferroics

ITEM VIEW & DOWNLOAD

Simultaneous improvement in electrical and thermal properties of interface-engineered BiSbTe nanostructured thermoelectric materials

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Simultaneous improvement in electrical and thermal properties of interface-engineered BiSbTe nanostructured thermoelectric materials
Author
Jo, SeungkiPark, Sung HoonBan, Hyeong WooGu, Da HwiKim, Song SeoSon, Ji HeeHong, Hyo-KiLee, ZonghoonHan, Hyoung-SuJo, WookLee, Ji EunSon, Jae Sung
Keywords
Energy filtering effect; Interface engineering; Nanostructured thermoelectric materials; Thermal conductivity; ZT
Issue Date
201612
Publisher
ELSEVIER SCIENCE SA
Citation
JOURNAL OF ALLOYS AND COMPOUNDS, v.689, no., pp.899 - 907
Abstract
Over the past decade, nanostructuring has become the core of thermoelectric (TE) material research because it creates numerous internal interfaces that provide an effective way to tune the electrical and/or thermal properties of TE materials. Herein, we report a synthesis of interface-engineered BiSbTe nanostructured TE materials by introducing chemically synthesized molecular Ten 2− polyanions into BiSbTe particles, from which BiSbTe nanostructured materials with high-density Te interfacial layers are prepared in thin films and sintered pellets. These Te layers form the contact potential well at the BiSbTe-Te junction to realize energy dependent carrier scattering and scatter phonons effectively, thus resulting in simultaneous improvement in the electrical and thermal properties to increase the ZT value well above 1.3 ± 0.14 that is increased by 40% compared to bulk BiSbTe. The findings of current study can open up new chemical design spaces for interface-engineered electronic and TE materials. © 2016 Elsevier B.V
URI
Go to Link
DOI
http://dx.doi.org/10.1016/j.jallcom.2016.08.033
ISSN
0925-8388
Appears in Collections:
MSE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU