Tuning the carrier concentration using Zintl chemistry in Mg3Sb2, and its implications for thermoelectric figure-of-merit-Reference-Cited by-同舟云学术

Tuning the carrier concentration using Zintl chemistry in Mg3Sb2, and its implications for thermoelectric figure-of-merit

Published:2016 Issue:8 Volume:18 Page:6191-6200
ISSN:1463-9076
Container-title:Physical Chemistry Chemical Physics
language:en
Short-container-title:Phys. Chem. Chem. Phys.

Author:

Bhardwaj A.¹²³⁴⁵,Chauhan N. S.¹²³⁴⁵,Goel S.¹²³⁴⁵,Singh Vijeta¹²³⁴⁶,Pulikkotil J. J.¹²³⁴⁶,Senguttuvan T. D.¹²³⁴⁵,Misra D. K.¹²³⁴⁵

Affiliation:

1. Academy of Scientific & Innovative Research (AcSIR)

2. CSIR-National Physical Laboratory (CSIR-NPL) Campus

3. New Delhi-110012

4. India

5. Physics of Energy Harvesting Division

6. Quantum Phenomena & Applications Division

Abstract

The Zn²⁺ substitution on Mg²⁺ site in the anionic framework (Mg₂Sb₂)²⁻ of Mg₃Sb₂ results in an optimal control over the carrier concentration and the reduction in thermal conductivity via mass fluctuation scattering which drives the system to achieve a ZT of 0.37 at 773 K in Mg_2.9Zn_0.1Sb₂.

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

Link

http://pubs.rsc.org/en/content/articlepdf/2016/CP/C5CP07482G

Reference47 articles.

1. High Thermoelectric Performance and Enhanced Mechanical Stability of p-type Ge1–xSbxTe

2. Temperature Dependent Reversible p–n–p Type Conduction Switching with Colossal Change in Thermopower of Semiconducting AgCuS

3. Tailoring of Electronic Structure and Thermoelectric Properties of a Topological Crystalline Insulator by Chemical Doping

4. Lead-free thermoelectrics: promising thermoelectric performance in p-type SnTe1−xSex system

5. Enhanced power factor and reduced thermal conductivity of a half-Heusler derivative Ti9Ni7Sn8: A bulk nanocomposite thermoelectric material

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