Size effect in thermoelectric materials

doi:10.1038/npjquantmats.2016.28

Title: Size effect in thermoelectric materials

Authors:: Mao, Jun; Liu, Zihang; Ren, Zhifeng

Publication Date:: 2016-12-01

Research Org.:: Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1388358

DOE Contract Number:: SC0001299; FG02-09ER46577

Resource Type:: Journal Article

Journal Name:: npj Quantum Materials

Additional Journal Information:: Journal Volume: 1; Journal Issue: 1; Related Information: S3TEC partners with Massachusetts Institute of Technology (lead); Boston College; Oak Ridge National Laboratory; Rensselaer Polytechnic Institute; Journal ID: ISSN 2397-4648

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: solar (photovoltaic), solar (thermal), solid state lighting, phonons, thermal conductivity, thermoelectric, defects, mechanical behavior, charge transport, spin dynamics, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly), synthesis (scalable processing)

Citation Formats


                    Mao, Jun, Liu, Zihang, and Ren, Zhifeng. Size effect in thermoelectric materials.  United States: N. p., 2016. 
        Web.  doi:10.1038/npjquantmats.2016.28.

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                    Mao, Jun, Liu, Zihang, & Ren, Zhifeng. Size effect in thermoelectric materials.  United States.  doi:10.1038/npjquantmats.2016.28.

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                    Mao, Jun, Liu, Zihang, and Ren, Zhifeng. Thu .  
        "Size effect in thermoelectric materials".  United States.  doi:10.1038/npjquantmats.2016.28.

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@article{osti_1388358,

  title        = {Size effect in thermoelectric materials},

  author       = {Mao, Jun and Liu, Zihang and Ren, Zhifeng},

  abstractNote = {},

  doi          = {10.1038/npjquantmats.2016.28},

  journal      = {npj Quantum Materials},

  issn         = {2397-4648},

  number       = 1,

  volume       = 1,

  place        = {United States},

  year         = {2016},

  month        = {12}

}

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DOI: 10.1038/npjquantmats.2016.28

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Enhanced Thermoelectric Performance in 18-Electron Nb _0.8 CoSb Half-Heusler Compound with Intrinsic Nb Vacancies

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Typical 18-electron half-Heusler compounds, ZrNiSn and NbFeSb, are identified as promising high-temperature thermoelectric materials. NbCoSb with nominal 19 valence electrons, which is supposed to be metallic, is recently reported to also exhibit thermoelectric properties of a heavily doped n-type semiconductor. Here for the first time, it is experimentally demonstrated that the nominal 19-electron NbCoSb is actually the composite of 18-electron Nb _0.8+δCoSb (0 ≤ δ < 0.05) and impurity phases. Single-phase Nb _0.8δ+CoSb with intrinsic Nb vacancies, following the 18-electron rule, possesses improved thermoelectric performance, and the slight change in the content of Nb vacancies has a profound effect onmore »« less
Cited by 13
DOI: 10.1002/adfm.201705845
Enhanced Thermoelectric Performance in 18-Electron Nb _0.8 CoSb Half-Heusler Compound with Intrinsic Nb Vacancies

Journal Article Xia, Kaiyang ; Liu, Yintu ; Anand, Shashwat ; ... - Advanced Functional Materials

Typical 18-electron half-Heusler compounds, ZrNiSn and NbFeSb, are identified as promising high-temperature thermoelectric materials. NbCoSb with nominal 19 valence electrons, which is supposed to be metallic, is recently reported to also exhibit thermoelectric properties of a heavily doped n-type semiconductor. Here for the first time, it is experimentally demonstrated that the nominal 19-electron NbCoSb is actually the composite of 18-electron Nb _0.8+δCoSb (0 ≤ δ < 0.05) and impurity phases. Single-phase Nb _0.8δ+CoSb with intrinsic Nb vacancies, following the 18-electron rule, possesses improved thermoelectric performance, and the slight change in the content of Nb vacancies has a profound effect onmore »« less
Cited by 13
DOI: 10.1002/adfm.201705845

Full Text Available
Ab initio optimization of phonon drag effect for lower-temperature thermoelectric energy conversion

Journal Article Zhou, Jiawei ; Liao, Bolin ; Qiu, Bo ; ... - Proceedings of the National Academy of Sciences of the United States of America

Although the thermoelectric figure of merit zT above 300 K has seen significant improvement recently, the progress at lower temperatures has been slow, mainly limited by the relatively low Seebeck coefficient and high thermal conductivity. We report, for the first time to our knowledge, success in first-principles computation of the phonon drag effect—a coupling phenomenon between electrons and nonequilibrium phonons—in heavily doped region and its optimization to enhance the Seebeck coefficient while reducing the phonon thermal conductivity by nanostructuring. Our simulation quantitatively identifies the major phonons contributing to the phonon drag, which are spectrally distinct from those carrying heat, andmore »« less
Cited by 10
DOI: 10.1073/pnas.1512328112
n-type thermoelectric material Mg ₂ Sn _0.75 Ge _0.25 for high power generation

Journal Article Liu, Weishu ; Kim, Hee Seok ; Chen, Shuo ; ... - Proceedings of the National Academy of Sciences of the United States of America

Thermoelectric materials have been extensively studied for applications in conversion of waste heat into electricity. The efficiency is related to the figure-of-merit, ZT = (S ²σ/κ)T, where S, σ, and κ are the Seebeck coefficient, electrical conductivity, and thermal conductivity, respectively. Pursuing higher ZT for higher efficiency has been the focus by mainly reducing the thermal conductivity. In this paper, we point out, for a given ZT, higher power factor (S2σ) should be pursued for achieving more power because power is determined by (Th - Tc)2(S ²σ)/L, where T _h, T _c, and L are the hot and cold sidemore »« less
Cited by 48
DOI: 10.1073/pnas.1424388112

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Title: Size effect in thermoelectric materials

Citation Formats

Power Factor Enhancement by Modulation Doping in Bulk Nanocomposites journal, June 2011

Thermoelectric devices using semiconductor quantum wells journal, August 1994

Phonon superlattice transport journal, November 1997

Simultaneous measurements of Seebeck coefficient and thermal conductivity across superlattice journal, March 2002

Modification of the lattice thermal conductivity in silicon quantum wires due to spatial confinement of acoustic phonons journal, September 1999

The cross-plane thermoelectric properties of p-Ge/Si 0.5 Ge 0.5 superlattices journal, September 2013

Thermoelectric quantum-dot superlattices with high ZT journal, January 2000

High thermoelectric performance by resonant dopant indium in nanostructured SnTe journal, July 2013

Quantum size effects in n-PbTe∕p-SnTe∕n-PbTe heterostructures journal, February 2005

New Directions for Low-Dimensional Thermoelectric Materials journal, April 2007

Convergence of electronic bands for high performance bulk thermoelectrics journal, May 2011

Tailoring thermal conductivity by engineering compositional gradients in Si1−x Ge x superlattices journal, July 2015

Thermal conductivity of superlattices journal, March 1982

Carrier pocket engineering applied to “strained” Si/Ge superlattices to design useful thermoelectric materials journal, October 1999

Thermoelectric Cooling and Power Generation journal, July 1999

THERMAL CONDUCTIVITY OF InAs/ AlSb SUPERLATTICES journal, July 2001

Thermoelectric transport in quantum well superlattices journal, May 1997

Atomistic Simulations of Heat Transport in Silicon Nanowires journal, May 2009

Thin-film thermoelectric devices with high room-temperature figures of merit journal, October 2001

Nanostructured thermoelectric materials journal, May 2005

Anomalously high thermoelectric figure of merit in Bi1−xSbx nanowires by carrier pocket alignment journal, July 2001

PbTe based superlattice structures with high thermoelectric efficiency journal, February 2002

High thermoelectric figures of merit in PbTe quantum wells journal, July 1996

Diameter-dependent thermoelectric figure of merit in single-crystalline Bi nanowires journal, January 2015

Effect of quantum-well structures on the thermoelectric figure of merit journal, May 1993

Silicon nanowires as efficient thermoelectric materials journal, January 2008

Large Thermoelectric Power Factor Enhancement Observed in InAs Nanowires journal, August 2013

Effect of surface roughness on thermal conductivity of silicon nanowires journal, February 2010

PbTe/Te superlattice structures with enhanced thermoelectric figures of merit journal, January 1999

Thermal conductivity of Si–Ge superlattices journal, June 1997

Cooling, Heating, Generating Power, and Recovering Waste Heat with Thermoelectric Systems journal, September 2008

Thermal conductivity and heat transfer in superlattices journal, November 1997

Semimetal–semiconductor transition in Bi1−xSbx alloy nanowires and their thermoelectric properties journal, September 2002

Quantum size effects in PbSe quantum wells journal, April 2002

ErAs:InGaAs∕InGaAlAs superlattice thin-film power generator array journal, March 2006

Thermal conduction in lattice–matched superlattices of InGaAs/InAlAs journal, August 2014

Effect of superlattice structure on the thermoelectric figure of merit journal, May 1995

Significant decrease of the lattice thermal conductivity due to phonon confinement in a free-standing semiconductor quantum well journal, July 1998

Enhancement of Thermoelectric Properties by Modulation-Doping in Silicon Germanium Alloy Nanocomposites journal, January 2012

High quality multifold Ge/Si/Ge composite quantum dots for thermoelectric materials journal, March 2013

Thermal conductivity of individual silicon nanowires journal, October 2003

Unusually Large Enhancement of Thermopower in an Electric Field Induced Two-Dimensional Electron Gas journal, January 2012

Thermoelectric properties of p-type PbSe nanowires journal, May 2009

Enhanced Thermoelectric Figure-of-Merit in Thermally Robust, Nanostructured Superlattices Based on SrTiO 3 journal, March 2015

Thermoelectric figure of merit of composite superlattice systems journal, May 1995

Anisotropy of the Thermal Conductivity in GaAs/AlAs Superlattices journal, August 2013

Thermoelectric power factor in superlattice systems journal, July 2000

Size-dependent thermal conductivity of individual single-crystalline PbTe nanowires journal, March 2010

Thermoelectric power of bismuth nanowires journal, May 1999

Complex thermoelectric materials journal, February 2008

Thermoelectric figure of merit of a one-dimensional conductor journal, June 1993

Holey Silicon as an Efficient Thermoelectric Material journal, October 2010

Carrier pocket engineering to design superior thermoelectric materials using GaAs/AlAs superlattices journal, November 1998

Enhancement of Thermoelectric Efficiency in PbTe by Distortion of the Electronic Density of States journal, July 2008

Enhanced Thermopower in PbSe Nanocrystal Quantum Dot Superlattices journal, August 2008

Aspects of Thin-Film Superlattice Thermoelectric Materials, Devices, and Applications journal, March 2006

Giant thermoelectric Seebeck coefficient of a two-dimensional electron gas in SrTiO3 journal, January 2007

Growth of Ge quantum dot superlattices for thermoelectric applications journal, July 2001

Si/Ge Superlattice Nanowires with Ultralow Thermal Conductivity journal, October 2012

Convergence of Conduction Bands as a Means of Enhancing Thermoelectric Performance of n -Type Mg 2 Si 1 − x Sn x Solid Solutions journal, April 2012

Precise control of thermal conductivity at the nanoscale through individual phonon-scattering barriers journal, May 2010

Resonant levels in bulk thermoelectric semiconductors journal, January 2012

Thermal properties of AlAs/GaAs superlattices journal, November 1987

Thermoelectric cross-plane properties on p- and n-Ge/SixGe1-x superlattices journal, March 2016

Diameter Dependence of the Transport Properties of Antimony Telluride Nanowires journal, August 2010

Effect of phonon confinement on the thermoelectric figure of merit of quantum wells journal, December 1998

Thermoelectric figure of merit of quantum wire superlattices journal, July 1995

Experimental study of the effect of quantum-well structures on the thermoelectric figure of merit journal, April 1996

Thermal conductivity of half-Heusler superlattices journal, November 2014

Ge/SiGe superlattices for thermoelectric energy conversion devices journal, September 2012

Thermoelectric figure of merit enhancement in a quantum dot superlattice journal, November 2000

Enhanced thermopower in ZnO two-dimensional electron gas journal, May 2016

Thermal conductivity suppression in bismuth nanowires journal, August 2009

Theory of thermoelectric power factor in quantum well and quantum wire superlattices journal, July 2001

Measuring Thermal and Thermoelectric Properties of One-Dimensional Nanostructures Using a Microfabricated Device journal, September 2003

Quantum Dot Superlattice Thermoelectric Materials and Devices journal, September 2002

Controlling thermal conductance through quantum dot roughening at interfaces journal, July 2011

Enhanced thermoelectric performance of rough silicon nanowires journal, January 2008

Power Factor Enhancement by Modulation Doping in Bulk Nanocomposites
journal, June 2011

Thermoelectric devices using semiconductor quantum wells
journal, August 1994

Phonon superlattice transport
journal, November 1997

Simultaneous measurements of Seebeck coefficient and thermal conductivity across superlattice
journal, March 2002

Modification of the lattice thermal conductivity in silicon quantum wires due to spatial confinement of acoustic phonons
journal, September 1999

The cross-plane thermoelectric properties of p-Ge/Si _0.5 Ge _0.5 superlattices
journal, September 2013

Thermoelectric quantum-dot superlattices with high ZT
journal, January 2000

High thermoelectric performance by resonant dopant indium in nanostructured SnTe
journal, July 2013

Quantum size effects in n-PbTe∕p-SnTe∕n-PbTe heterostructures
journal, February 2005

New Directions for Low-Dimensional Thermoelectric Materials
journal, April 2007

Convergence of electronic bands for high performance bulk thermoelectrics
journal, May 2011

Tailoring thermal conductivity by engineering compositional gradients in Si1−x Ge x superlattices
journal, July 2015

Thermal conductivity of superlattices
journal, March 1982

Carrier pocket engineering applied to “strained” Si/Ge superlattices to design useful thermoelectric materials
journal, October 1999

Thermoelectric Cooling and Power Generation
journal, July 1999

THERMAL CONDUCTIVITY OF InAs/ AlSb SUPERLATTICES
journal, July 2001

Thermoelectric transport in quantum well superlattices
journal, May 1997

Atomistic Simulations of Heat Transport in Silicon Nanowires
journal, May 2009

Thin-film thermoelectric devices with high room-temperature figures of merit
journal, October 2001

Nanostructured thermoelectric materials
journal, May 2005

Anomalously high thermoelectric figure of merit in Bi1−xSbx nanowires by carrier pocket alignment
journal, July 2001

PbTe based superlattice structures with high thermoelectric efficiency
journal, February 2002

High thermoelectric figures of merit in PbTe quantum wells
journal, July 1996

Diameter-dependent thermoelectric figure of merit in single-crystalline Bi nanowires
journal, January 2015

Effect of quantum-well structures on the thermoelectric figure of merit
journal, May 1993

Silicon nanowires as efficient thermoelectric materials
journal, January 2008

Large Thermoelectric Power Factor Enhancement Observed in InAs Nanowires
journal, August 2013

Effect of surface roughness on thermal conductivity of silicon nanowires
journal, February 2010

PbTe/Te superlattice structures with enhanced thermoelectric figures of merit
journal, January 1999

Thermal conductivity of Si–Ge superlattices
journal, June 1997

Cooling, Heating, Generating Power, and Recovering Waste Heat with Thermoelectric Systems
journal, September 2008

Thermal conductivity and heat transfer in superlattices
journal, November 1997

Semimetal–semiconductor transition in Bi1−xSbx alloy nanowires and their thermoelectric properties
journal, September 2002

Quantum size effects in PbSe quantum wells
journal, April 2002

ErAs:InGaAs∕InGaAlAs superlattice thin-film power generator array
journal, March 2006

Thermal conduction in lattice–matched superlattices of InGaAs/InAlAs
journal, August 2014

Effect of superlattice structure on the thermoelectric figure of merit
journal, May 1995

Significant decrease of the lattice thermal conductivity due to phonon confinement in a free-standing semiconductor quantum well
journal, July 1998

Enhancement of Thermoelectric Properties by Modulation-Doping in Silicon Germanium Alloy Nanocomposites
journal, January 2012

High quality multifold Ge/Si/Ge composite quantum dots for thermoelectric materials
journal, March 2013

Thermal conductivity of individual silicon nanowires
journal, October 2003

Unusually Large Enhancement of Thermopower in an Electric Field Induced Two-Dimensional Electron Gas
journal, January 2012

Thermoelectric properties of p-type PbSe nanowires
journal, May 2009

Enhanced Thermoelectric Figure-of-Merit in Thermally Robust, Nanostructured Superlattices Based on SrTiO ₃
journal, March 2015

Thermoelectric figure of merit of composite superlattice systems
journal, May 1995

Anisotropy of the Thermal Conductivity in GaAs/AlAs Superlattices
journal, August 2013

Thermoelectric power factor in superlattice systems
journal, July 2000

Size-dependent thermal conductivity of individual single-crystalline PbTe nanowires
journal, March 2010

Thermoelectric power of bismuth nanowires
journal, May 1999

Complex thermoelectric materials
journal, February 2008

Thermoelectric figure of merit of a one-dimensional conductor
journal, June 1993

Holey Silicon as an Efficient Thermoelectric Material
journal, October 2010

Carrier pocket engineering to design superior thermoelectric materials using GaAs/AlAs superlattices
journal, November 1998

Enhancement of Thermoelectric Efficiency in PbTe by Distortion of the Electronic Density of States
journal, July 2008

Enhanced Thermopower in PbSe Nanocrystal Quantum Dot Superlattices
journal, August 2008

Aspects of Thin-Film Superlattice Thermoelectric Materials, Devices, and Applications
journal, March 2006

Giant thermoelectric Seebeck coefficient of a two-dimensional electron gas in SrTiO3
journal, January 2007

Growth of Ge quantum dot superlattices for thermoelectric applications
journal, July 2001

Si/Ge Superlattice Nanowires with Ultralow Thermal Conductivity
journal, October 2012

Convergence of Conduction Bands as a Means of Enhancing Thermoelectric Performance of $n$ -Type ${Mg}_{2} {Si}_{1 - x} {Sn}_{x}$ Solid Solutions
journal, April 2012

Precise control of thermal conductivity at the nanoscale through individual phonon-scattering barriers
journal, May 2010

Resonant levels in bulk thermoelectric semiconductors
journal, January 2012

Thermal properties of AlAs/GaAs superlattices
journal, November 1987

Thermoelectric cross-plane properties on p- and n-Ge/SixGe1-x superlattices
journal, March 2016

Diameter Dependence of the Transport Properties of Antimony Telluride Nanowires
journal, August 2010

Effect of phonon confinement on the thermoelectric figure of merit of quantum wells
journal, December 1998

Thermoelectric figure of merit of quantum wire superlattices
journal, July 1995

Experimental study of the effect of quantum-well structures on the thermoelectric figure of merit
journal, April 1996

Thermal conductivity of half-Heusler superlattices
journal, November 2014

Ge/SiGe superlattices for thermoelectric energy conversion devices
journal, September 2012

Thermoelectric figure of merit enhancement in a quantum dot superlattice
journal, November 2000

Enhanced thermopower in ZnO two-dimensional electron gas
journal, May 2016

Thermal conductivity suppression in bismuth nanowires
journal, August 2009

Theory of thermoelectric power factor in quantum well and quantum wire superlattices
journal, July 2001

Measuring Thermal and Thermoelectric Properties of One-Dimensional Nanostructures Using a Microfabricated Device
journal, September 2003

Quantum Dot Superlattice Thermoelectric Materials and Devices
journal, September 2002

Controlling thermal conductance through quantum dot roughening at interfaces
journal, July 2011

Enhanced thermoelectric performance of rough silicon nanowires
journal, January 2008

Gate-Tuned Thermoelectric Power in Black Phosphorus
journal, August 2016

Theoretical investigation of thermoelectric transport properties of cylindrical Bi nanowires
journal, August 2000