Enhancement of thermoelectric properties by atomic-scale percolation in digenite CuxS

Qinghui Jiang; Haixue Yan; Jibran Khaliq; Yang Shen; Kevin Simpson; Michael Reece

doi:10.1039/C4TA01250J

Enhancement of thermoelectric properties by atomic-scale percolation in digenite CuxS

Qinghui Jiang, Haixue Yan, Jibran Khaliq, Yang Shen, Kevin Simpson, Michael Reece

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46 Citations (Scopus)

Abstract

Atomic-scale percolation phenomena of electric and thermal conductivity were found in digenite CuxS. Copper ions are randomly located between the closely packed sulphur ions and jump to another position via unoccupied interstices. Near the percolation threshold value (fc similar 0.3) in the conductive region{,} a 60% enhancement of ZT value can be obtained. This indicates that the percolation phenomena can provide a new strategy to optimize the properties of thermoelectric materials{,} especially for quasi disordered materials.

Original language	English
Pages (from-to)	9486-9489
Journal	Journal of Material Chemistry A
Volume	2
Early online date	17 Apr 2014
DOIs	https://doi.org/10.1039/C4TA01250J
Publication status	Published - 7 Jul 2014
Externally published	Yes

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title = "Enhancement of thermoelectric properties by atomic-scale percolation in digenite CuxS",

abstract = "Atomic-scale percolation phenomena of electric and thermal conductivity were found in digenite CuxS. Copper ions are randomly located between the closely packed sulphur ions and jump to another position via unoccupied interstices. Near the percolation threshold value (fc similar 0.3) in the conductive region{,} a 60% enhancement of ZT value can be obtained. This indicates that the percolation phenomena can provide a new strategy to optimize the properties of thermoelectric materials{,} especially for quasi disordered materials.",

author = "Qinghui Jiang and Haixue Yan and Jibran Khaliq and Yang Shen and Kevin Simpson and Michael Reece",

year = "2014",

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doi = "10.1039/C4TA01250J",

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T1 - Enhancement of thermoelectric properties by atomic-scale percolation in digenite CuxS

AU - Jiang, Qinghui

AU - Yan, Haixue

AU - Khaliq, Jibran

AU - Shen, Yang

AU - Simpson, Kevin

AU - Reece, Michael

PY - 2014/7/7

Y1 - 2014/7/7

N2 - Atomic-scale percolation phenomena of electric and thermal conductivity were found in digenite CuxS. Copper ions are randomly located between the closely packed sulphur ions and jump to another position via unoccupied interstices. Near the percolation threshold value (fc similar 0.3) in the conductive region{,} a 60% enhancement of ZT value can be obtained. This indicates that the percolation phenomena can provide a new strategy to optimize the properties of thermoelectric materials{,} especially for quasi disordered materials.

AB - Atomic-scale percolation phenomena of electric and thermal conductivity were found in digenite CuxS. Copper ions are randomly located between the closely packed sulphur ions and jump to another position via unoccupied interstices. Near the percolation threshold value (fc similar 0.3) in the conductive region{,} a 60% enhancement of ZT value can be obtained. This indicates that the percolation phenomena can provide a new strategy to optimize the properties of thermoelectric materials{,} especially for quasi disordered materials.

U2 - 10.1039/C4TA01250J

DO - 10.1039/C4TA01250J

M3 - Article

VL - 2

SP - 9486

EP - 9489

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

SN - 2050-7488

ER -

Enhancement of thermoelectric properties by atomic-scale percolation in digenite CuxS

Abstract

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