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High thermoelectric performance of n-type PbTe 1-y S y due to deep lying states induced by indium doping and spinodal decomposition

Journal Article · · Nano Energy
Good thermoelectric materials should have high engineering figure-of-merit (ZT)eng, not peak ZT, to achieve high conversion efficiency. In this work, we achieved a good (ZT)eng by optimizing the carrier concentration to improve the room temperature ZT using deep lying dopant, indium, in PbTe 1-y S y. It was found that a room temperature ZT as high as ~0.5 and a peak ZT ~1.1 at about 673 K were obtained in Pb0.98In0.02Te0.8S0.2 due to a lower thermal conductivity by alloy scattering and Spinodal decomposition. The calculated efficiency could be as high as ~12% at cold side 323 K and hot side 773 K. The approach is expected to work in other materials systems too.
Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC)
Sponsoring Organization:
USDOE SC Office of Basic Energy Sciences (SC-22)
DOE Contract Number:
SC0001299; SC0001299
OSTI ID:
1371436
Journal Information:
Nano Energy, Journal Name: Nano Energy Journal Issue: C Vol. 22; ISSN 2211-2855
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

References (52)

Superior thermoelectric performance in PbTe–PbS pseudo-binary: extremely low thermal conductivity and modulated carrier concentration journal January 2015
Ab Initio Study of Deep Defect States in Narrow Band-Gap Semiconductors: Group III Impurities in PbTe journal February 2006
Combining alloy scattering of phonons and resonant electronic levels to reach a high thermoelectric figure of merit in PbTeSe and PbTeS alloys journal January 2011
Heavy Doping and Band Engineering by Potassium to Improve the Thermoelectric Figure of Merit in p-Type PbTe, PbSe, and PbTe 1– y Se y journal June 2012
Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals journal April 2014
Phonon conduction in PbSe, PbTe, and PbTe 1 − x Se x from first-principles calculations journal May 2012
Stabilizing the Optimal Carrier Concentration for High Thermoelectric Efficiency journal November 2011
Enhancement of Thermoelectric Efficiency in PbTe by Distortion of the Electronic Density of States journal July 2008
Power Factor Enhancement by Modulation Doping in Bulk Nanocomposites journal June 2011
Relationship between thermoelectric figure of merit and energy conversion efficiency journal June 2015
Thermoelectric Performance of n -Type (PbTe) 0.75 (PbS) 0.15 (PbSe) 0.1 Composites journal June 2014
High thermoelectric performance by resonant dopant indium in nanostructured SnTe journal July 2013
Enhancement of Thermoelectric Properties by Modulation-Doping in Silicon Germanium Alloy Nanocomposites journal January 2012
Doping of PbTe with Group-III elements: An ionic lattice approach journal March 1981
Enhancement of thermoelectric performance in n-type PbTe1−Se by doping Cr and tuning Te:Se ratio journal April 2015
Reevaluation of PbTe1−xIx as high performance n-type thermoelectric material journal January 2011
Phase separation and nanostructuring in the thermoelectric material PbTe 1 − x S x studied using the atomic pair distribution function technique journal July 2009
Contrasting role of antimony and bismuth dopants on the thermoelectric performance of lead selenide journal May 2014
Theoretical study of deep-defect states in bulk PbTe and in thin films journal September 2007
A new class of doped nanobulk high-figure-of-merit thermoelectrics by scalable bottom-up assembly journal January 2012
Convergence of electronic bands for high performance bulk thermoelectrics journal May 2011
Optimum Carrier Concentration in n-Type PbTe Thermoelectrics journal May 2014
Spinodal Decomposition and Nucleation and Growth as a Means to Bulk Nanostructured Thermoelectrics:  Enhanced Performance in Pb 1- x Sn x Te−PbS journal August 2007
Thermoelectrics from Abundant Chemical Elements: High-Performance Nanostructured PbSe–PbS journal July 2011
Studies on Thermoelectric Properties of n-type Polycrystalline SnSe 1- x S x by Iodine Doping journal April 2015
Point Defect Engineering of High-Performance Bismuth-Telluride-Based Thermoelectric Materials journal June 2014
Nanostructures Boost the Thermoelectric Performance of PbS journal March 2011
Study of the Thermoelectric Properties of Lead Selenide Doped with Boron, Gallium, Indium, or Thallium journal October 2012
Cubic AgPbmSbTe2+m: Bulk Thermoelectric Materials with High Figure of Merit journal February 2004
Low Electron Scattering Potentials in High Performance Mg 2 Si 0.45 Sn 0.55 Based Thermoelectric Solid Solutions with Band Convergence journal April 2013
Filled Skutterudite Antimonides: A New Class of Thermoelectric Materials journal May 1996
Thermoelectrics with Earth Abundant Elements: High Performance p-type PbS Nanostructured with SrS and CaS journal April 2012
Enhancement of Thermoelectric Performance of n-Type PbSe by Cr Doping with Optimized Carrier Concentration journal January 2015
High Thermoelectric Efficiency of n-type PbS journal November 2012
Resonant bonding leads to low lattice thermal conductivity journal April 2014
Broad temperature plateau for thermoelectric figure of merit ZT>2 in phase-separated PbTe0.7S0.3 journal July 2014
Low temperature thermal, thermoelectric, and thermomagnetic transport in indium rich Pb1−xSnxTe alloys journal March 2008
High-Thermoelectric Performance of Nanostructured Bismuth Antimony Telluride Bulk Alloys journal May 2008
High Performance Thermoelectrics from Earth-Abundant Materials: Enhanced Figure of Merit in PbS by Second Phase Nanostructures journal December 2011
Ab initio studies of the electronic structure of defects in PbTe journal October 2006
Mixed-valence impurities in lead telluride-based solid solutions journal August 2002
Analysis of Phase Separation in High Performance PbTe-PbS Thermoelectric Materials journal September 2012
Ab-initio thermodynamic calculations of Mg2BIV (BIV = Si, Ge, Sn) solid solutions journal March 2008
High performance n-type PbTe-based materials for thermoelectric applications journal June 2005
Giant anharmonic phonon scattering in PbTe journal June 2011
High-performance bulk thermoelectrics with all-scale hierarchical architectures journal September 2012
Combination of large nanostructures and complex band structure for high performance thermoelectric lead telluride journal January 2011
Role of Sodium Doping in Lead Chalcogenide Thermoelectrics journal March 2013
Thermoelectric properties of PbSe 0.5 Te 0.5 : x (PbI 2 ) with endotaxial nanostructures: a promising n-type thermoelectric material journal April 2013
Thermoelectric properties of indium doped PbTe 1-y Se y alloys journal July 2014
The Criteria for Beneficial Disorder in Thermoelectric Solid Solutions journal October 2012
Enhancement of thermoelectric figure-of-merit by resonant states of aluminium doping in lead selenide journal January 2012