Suppression of bipolar transport and enhanced zT values of porous ZnSb by addition of hydrothermally synthesized Sb

Yu Hsien Chu, Zhi Quan Huang, Zong Ren Yang, Fei Hung Lin, Kuo Chuan Chang, R. Suriakarthick, Chia-Jyi Liu

Research output: Contribution to journalArticle

Abstract

ZnSb is a favourable eco-friendly, earth abundant SIand low cost thermoelectric material. We herein report a feasible approach to improve the thermoelectric performance of ZnSb by compositing with hydrothermally synthesized Sb. A series of ZnSb/Sb composites was fabricated by mixing the host material ZnSb and hydrothermally synthesized Sb followed by consolidation using cold pressing and evacuating-and-encapsulating sintering at 530 °C for 3 h. As compared to the host ZnSb, both the electrical resistivity and thermopower decrease, while both the power factor and thermal conductivity increase upon compositing with Sb. The bipolar transport of ZnSb is suppressed at temperatures up to 600 K. As a result, the ZnSb-Sb composite with 4 wt.% of hydrothermally synthesized Sb has a zT = 1.18 at 600 K, which is one of the highest values for ZnSb-based material and is about 46% enhancement as compared to the host ZnSb having zT = 0.81 at 600 K.

Original languageEnglish
Pages (from-to)4177-4183
Number of pages7
JournalJournal of the European Ceramic Society
Volume39
Issue number14
DOIs
Publication statusPublished - 2019 Nov 1

Fingerprint

Thermoelectric power
Composite materials
Consolidation
Thermal conductivity
Sintering
Earth (planet)
Costs
Temperature

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Chu, Yu Hsien ; Huang, Zhi Quan ; Yang, Zong Ren ; Lin, Fei Hung ; Chang, Kuo Chuan ; Suriakarthick, R. ; Liu, Chia-Jyi. / Suppression of bipolar transport and enhanced zT values of porous ZnSb by addition of hydrothermally synthesized Sb. In: Journal of the European Ceramic Society. 2019 ; Vol. 39, No. 14. pp. 4177-4183.
@article{78b7899e612549f18ecb01b205f22717,
title = "Suppression of bipolar transport and enhanced zT values of porous ZnSb by addition of hydrothermally synthesized Sb",
abstract = "ZnSb is a favourable eco-friendly, earth abundant SIand low cost thermoelectric material. We herein report a feasible approach to improve the thermoelectric performance of ZnSb by compositing with hydrothermally synthesized Sb. A series of ZnSb/Sb composites was fabricated by mixing the host material ZnSb and hydrothermally synthesized Sb followed by consolidation using cold pressing and evacuating-and-encapsulating sintering at 530 °C for 3 h. As compared to the host ZnSb, both the electrical resistivity and thermopower decrease, while both the power factor and thermal conductivity increase upon compositing with Sb. The bipolar transport of ZnSb is suppressed at temperatures up to 600 K. As a result, the ZnSb-Sb composite with 4 wt.{\%} of hydrothermally synthesized Sb has a zT = 1.18 at 600 K, which is one of the highest values for ZnSb-based material and is about 46{\%} enhancement as compared to the host ZnSb having zT = 0.81 at 600 K.",
author = "Chu, {Yu Hsien} and Huang, {Zhi Quan} and Yang, {Zong Ren} and Lin, {Fei Hung} and Chang, {Kuo Chuan} and R. Suriakarthick and Chia-Jyi Liu",
year = "2019",
month = "11",
day = "1",
doi = "10.1016/j.jeurceramsoc.2019.06.033",
language = "English",
volume = "39",
pages = "4177--4183",
journal = "Journal of the European Ceramic Society",
issn = "0955-2219",
publisher = "Elsevier BV",
number = "14",

}

Suppression of bipolar transport and enhanced zT values of porous ZnSb by addition of hydrothermally synthesized Sb. / Chu, Yu Hsien; Huang, Zhi Quan; Yang, Zong Ren; Lin, Fei Hung; Chang, Kuo Chuan; Suriakarthick, R.; Liu, Chia-Jyi.

In: Journal of the European Ceramic Society, Vol. 39, No. 14, 01.11.2019, p. 4177-4183.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Suppression of bipolar transport and enhanced zT values of porous ZnSb by addition of hydrothermally synthesized Sb

AU - Chu, Yu Hsien

AU - Huang, Zhi Quan

AU - Yang, Zong Ren

AU - Lin, Fei Hung

AU - Chang, Kuo Chuan

AU - Suriakarthick, R.

AU - Liu, Chia-Jyi

PY - 2019/11/1

Y1 - 2019/11/1

N2 - ZnSb is a favourable eco-friendly, earth abundant SIand low cost thermoelectric material. We herein report a feasible approach to improve the thermoelectric performance of ZnSb by compositing with hydrothermally synthesized Sb. A series of ZnSb/Sb composites was fabricated by mixing the host material ZnSb and hydrothermally synthesized Sb followed by consolidation using cold pressing and evacuating-and-encapsulating sintering at 530 °C for 3 h. As compared to the host ZnSb, both the electrical resistivity and thermopower decrease, while both the power factor and thermal conductivity increase upon compositing with Sb. The bipolar transport of ZnSb is suppressed at temperatures up to 600 K. As a result, the ZnSb-Sb composite with 4 wt.% of hydrothermally synthesized Sb has a zT = 1.18 at 600 K, which is one of the highest values for ZnSb-based material and is about 46% enhancement as compared to the host ZnSb having zT = 0.81 at 600 K.

AB - ZnSb is a favourable eco-friendly, earth abundant SIand low cost thermoelectric material. We herein report a feasible approach to improve the thermoelectric performance of ZnSb by compositing with hydrothermally synthesized Sb. A series of ZnSb/Sb composites was fabricated by mixing the host material ZnSb and hydrothermally synthesized Sb followed by consolidation using cold pressing and evacuating-and-encapsulating sintering at 530 °C for 3 h. As compared to the host ZnSb, both the electrical resistivity and thermopower decrease, while both the power factor and thermal conductivity increase upon compositing with Sb. The bipolar transport of ZnSb is suppressed at temperatures up to 600 K. As a result, the ZnSb-Sb composite with 4 wt.% of hydrothermally synthesized Sb has a zT = 1.18 at 600 K, which is one of the highest values for ZnSb-based material and is about 46% enhancement as compared to the host ZnSb having zT = 0.81 at 600 K.

UR - http://www.scopus.com/inward/record.url?scp=85067495113&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85067495113&partnerID=8YFLogxK

U2 - 10.1016/j.jeurceramsoc.2019.06.033

DO - 10.1016/j.jeurceramsoc.2019.06.033

M3 - Article

VL - 39

SP - 4177

EP - 4183

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

SN - 0955-2219

IS - 14

ER -