Increased thermoelectric performance by Cl doping in nanostructured AgPb18SbSe20-xClx

Qian Zhang; Yucheng Lan; Silong Yang; Feng Cao; Mengliang Yao; Cyril Opeil; David Broido; Gang Chen; Zhifeng Ren

doi:10.1016/j.nanoen.2013.09.009

Increased thermoelectric performance by Cl doping in nanostructured AgPb₁₈SbSe_20-xCl_x

Qian Zhang
, Yucheng Lan
, Silong Yang
, Feng Cao
, Mengliang Yao
, Cyril Opeil
, David Broido
, Gang Chen
, Zhifeng Ren^*

^*Corresponding author for this work

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

32 Scopus citations

Abstract

The quaternary AgPb₁₈SbTe₂₀ (LAST) alloy is well known for having low thermal conductivity and high ZT. Nano-precipitates of AgSbTe₂ contribute significantly to the decrease of the lattice thermal conductivity. In this work, Te was completely substituted by the more economically available Se in LAST. Low thermal conductivity was achieved in AgPb₁₈SbSe₂₀ (LASS) made by melting and hot pressing. We subsequently studied the thermoelectric properties of LASS with different dopants, and found Cl was effective in increasing the carrier concentration and power factor, which enhanced ZT to ~1.3 in n-type AgPb₁₈SbSe_19.928Cl_0.072 at about 873K.

Original language	English
Pages (from-to)	1121-1127
Number of pages	7
Journal	Nano Energy
Volume	2
Issue number	6
DOIs	https://doi.org/10.1016/j.nanoen.2013.09.009
State	Published - Nov 2013
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

AgPbSbSe
Cl doping
Nanoregions
Thermoelectrics

Access to Document

10.1016/j.nanoen.2013.09.009

Cite this

@article{a0d7027ce24343b8ab70e2ccdeb2ab1d,

title = "Increased thermoelectric performance by Cl doping in nanostructured AgPb18SbSe20-xClx",

abstract = "The quaternary AgPb18SbTe20 (LAST) alloy is well known for having low thermal conductivity and high ZT. Nano-precipitates of AgSbTe2 contribute significantly to the decrease of the lattice thermal conductivity. In this work, Te was completely substituted by the more economically available Se in LAST. Low thermal conductivity was achieved in AgPb18SbSe20 (LASS) made by melting and hot pressing. We subsequently studied the thermoelectric properties of LASS with different dopants, and found Cl was effective in increasing the carrier concentration and power factor, which enhanced ZT to \textasciitilde{}1.3 in n-type AgPb18SbSe19.928Cl0.072 at about 873K.",

keywords = "AgPbSbSe, Cl doping, Nanoregions, Thermoelectrics",

author = "Qian Zhang and Yucheng Lan and Silong Yang and Feng Cao and Mengliang Yao and Cyril Opeil and David Broido and Gang Chen and Zhifeng Ren",

year = "2013",

month = nov,

doi = "10.1016/j.nanoen.2013.09.009",

language = "英语",

volume = "2",

pages = "1121--1127",

journal = "Nano Energy",

issn = "2211-2855",

publisher = "Elsevier B.V.",

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}

TY - JOUR

T1 - Increased thermoelectric performance by Cl doping in nanostructured AgPb18SbSe20-xClx

AU - Zhang, Qian

AU - Lan, Yucheng

AU - Yang, Silong

AU - Cao, Feng

AU - Yao, Mengliang

AU - Opeil, Cyril

AU - Broido, David

AU - Chen, Gang

AU - Ren, Zhifeng

PY - 2013/11

Y1 - 2013/11

N2 - The quaternary AgPb18SbTe20 (LAST) alloy is well known for having low thermal conductivity and high ZT. Nano-precipitates of AgSbTe2 contribute significantly to the decrease of the lattice thermal conductivity. In this work, Te was completely substituted by the more economically available Se in LAST. Low thermal conductivity was achieved in AgPb18SbSe20 (LASS) made by melting and hot pressing. We subsequently studied the thermoelectric properties of LASS with different dopants, and found Cl was effective in increasing the carrier concentration and power factor, which enhanced ZT to ~1.3 in n-type AgPb18SbSe19.928Cl0.072 at about 873K.

AB - The quaternary AgPb18SbTe20 (LAST) alloy is well known for having low thermal conductivity and high ZT. Nano-precipitates of AgSbTe2 contribute significantly to the decrease of the lattice thermal conductivity. In this work, Te was completely substituted by the more economically available Se in LAST. Low thermal conductivity was achieved in AgPb18SbSe20 (LASS) made by melting and hot pressing. We subsequently studied the thermoelectric properties of LASS with different dopants, and found Cl was effective in increasing the carrier concentration and power factor, which enhanced ZT to ~1.3 in n-type AgPb18SbSe19.928Cl0.072 at about 873K.

KW - AgPbSbSe

KW - Cl doping

KW - Nanoregions

KW - Thermoelectrics

UR - https://www.scopus.com/pages/publications/84886016556

U2 - 10.1016/j.nanoen.2013.09.009

DO - 10.1016/j.nanoen.2013.09.009

M3 - 文章

AN - SCOPUS:84886016556

SN - 2211-2855

VL - 2

SP - 1121

EP - 1127

JO - Nano Energy

JF - Nano Energy

IS - 6

ER -