Tuning the Thermoelectric Performance of SnTe via Dual-Site Electronic Donation and Super-Saturation Solution

Qiang Long; Jiwu Xin; Sihui Li; Abdul Basit; Suwei Li; Aladansunbuer Luo; Tian Xu; Bo Xiao; Junyou Yang; Qinghui Jiang; Xiaotao Han

doi:10.1021/acsaem.9b01462

Tuning the Thermoelectric Performance of SnTe via Dual-Site Electronic Donation and Super-Saturation Solution

Qiang Long
, Jiwu Xin
, Sihui Li
, Abdul Basit
, Suwei Li
, Aladansunbuer Luo
, Tian Xu
, Bo Xiao
, Junyou Yang^*
, Qinghui Jiang
, Xiaotao Han

^*Corresponding author for this work

Interdisciplinary Research Center for Sustainable Energy Systems

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

In this work, a dual-site electronic doping with Sb and I in SnTe has been carried out, and the impact of codoping on the electrical and thermal transport properties has been studied in detail. Due to the electron donation effect, the excessive hole density has been reduced, and the Seebeck coefficient (S) has been increased effectively. Moreover, transmission electron microscope (TEM) characterization analysis showed that a multiscale microstructure has been fabricated to suppress phonon propagation, thus decreasing the lattice thermal conductivity due to Sb content beyond its solubility limit. Combined with the enhancement of electronic transport properties and large reduction on thermal conductivity, a thermoelectric figure of merit of ∼0.97 at 873 K is obtained in the Sn_0.88Sb_0.12Te_0.97I_0.03 alloy, which is a 143% increase compared to that of the SnTe matrix.

Original language	English
Pages (from-to)	7490-7496
Number of pages	7
Journal	ACS Applied Energy Materials
Volume	2
Issue number	10
DOIs	https://doi.org/10.1021/acsaem.9b01462
State	Published - 28 Oct 2019

Bibliographical note

Publisher Copyright:
Copyright © 2019 American Chemical Society.

Keywords

all-scale architectures
dual-site electronic donation
precipitate
SnTe
solution limit

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Energy Engineering and Power Technology
Electrochemistry
Materials Chemistry
Electrical and Electronic Engineering

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10.1021/acsaem.9b01462

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title = "Tuning the Thermoelectric Performance of SnTe via Dual-Site Electronic Donation and Super-Saturation Solution",

abstract = "In this work, a dual-site electronic doping with Sb and I in SnTe has been carried out, and the impact of codoping on the electrical and thermal transport properties has been studied in detail. Due to the electron donation effect, the excessive hole density has been reduced, and the Seebeck coefficient (S) has been increased effectively. Moreover, transmission electron microscope (TEM) characterization analysis showed that a multiscale microstructure has been fabricated to suppress phonon propagation, thus decreasing the lattice thermal conductivity due to Sb content beyond its solubility limit. Combined with the enhancement of electronic transport properties and large reduction on thermal conductivity, a thermoelectric figure of merit of ∼0.97 at 873 K is obtained in the Sn0.88Sb0.12Te0.97I0.03 alloy, which is a 143\% increase compared to that of the SnTe matrix.",

keywords = "all-scale architectures, dual-site electronic donation, precipitate, SnTe, solution limit",

author = "Qiang Long and Jiwu Xin and Sihui Li and Abdul Basit and Suwei Li and Aladansunbuer Luo and Tian Xu and Bo Xiao and Junyou Yang and Qinghui Jiang and Xiaotao Han",

note = "Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = oct,

day = "28",

doi = "10.1021/acsaem.9b01462",

language = "English",

volume = "2",

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journal = "ACS Applied Energy Materials",

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TY - JOUR

T1 - Tuning the Thermoelectric Performance of SnTe via Dual-Site Electronic Donation and Super-Saturation Solution

AU - Long, Qiang

AU - Xin, Jiwu

AU - Li, Sihui

AU - Basit, Abdul

AU - Li, Suwei

AU - Luo, Aladansunbuer

AU - Xu, Tian

AU - Xiao, Bo

AU - Yang, Junyou

AU - Jiang, Qinghui

AU - Han, Xiaotao

PY - 2019/10/28

Y1 - 2019/10/28

N2 - In this work, a dual-site electronic doping with Sb and I in SnTe has been carried out, and the impact of codoping on the electrical and thermal transport properties has been studied in detail. Due to the electron donation effect, the excessive hole density has been reduced, and the Seebeck coefficient (S) has been increased effectively. Moreover, transmission electron microscope (TEM) characterization analysis showed that a multiscale microstructure has been fabricated to suppress phonon propagation, thus decreasing the lattice thermal conductivity due to Sb content beyond its solubility limit. Combined with the enhancement of electronic transport properties and large reduction on thermal conductivity, a thermoelectric figure of merit of ∼0.97 at 873 K is obtained in the Sn0.88Sb0.12Te0.97I0.03 alloy, which is a 143% increase compared to that of the SnTe matrix.

AB - In this work, a dual-site electronic doping with Sb and I in SnTe has been carried out, and the impact of codoping on the electrical and thermal transport properties has been studied in detail. Due to the electron donation effect, the excessive hole density has been reduced, and the Seebeck coefficient (S) has been increased effectively. Moreover, transmission electron microscope (TEM) characterization analysis showed that a multiscale microstructure has been fabricated to suppress phonon propagation, thus decreasing the lattice thermal conductivity due to Sb content beyond its solubility limit. Combined with the enhancement of electronic transport properties and large reduction on thermal conductivity, a thermoelectric figure of merit of ∼0.97 at 873 K is obtained in the Sn0.88Sb0.12Te0.97I0.03 alloy, which is a 143% increase compared to that of the SnTe matrix.

KW - all-scale architectures

KW - dual-site electronic donation

KW - precipitate

KW - SnTe

KW - solution limit

UR - https://www.scopus.com/pages/publications/85073028470

U2 - 10.1021/acsaem.9b01462

DO - 10.1021/acsaem.9b01462

M3 - Article

AN - SCOPUS:85073028470

SN - 2574-0962

VL - 2

SP - 7490

EP - 7496

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 10

ER -

Tuning the Thermoelectric Performance of SnTe via Dual-Site Electronic Donation and Super-Saturation Solution

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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