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Title: Ni and Se co-doping increases the power factor and thermoelectric performance of CoSbS

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/c8ta05572f· OSTI ID:1775443

In this paper, we present a new investigation on paracostibite (CoSbS), a potential thermoelectric material for power generation in the intermediate temperature range (700–900 K) consisting of earth abundant elements. We report an improved synthesis of single phase materials of Co1–xNixSbS1–ySey (x = 0–0.07, y = 0–0.09) using vacuum melting and annealing followed by SPS processing. The effects of Ni and Se co-doping on the electronic and thermal transport properties of CoSbS were investigated. Doping with Ni on the Co site increases the carrier concentration and moves the Fermi level deep into the conduction band, producing an enhanced power factor. First-principles electronic band structure calculations indicate a multi valley nature of the conduction band where Ni doping leads to n-type behaviour and a sharp increase of the density of states effective mass, enhancing the Seebeck coefficient. Unlike the Ni doping which has little effect on thermal transport, alloying Se on the S site intensifies the alloying scattering resulting in a lower lattice thermal conductivity of 2.4 W m–1 K–1 at 900 K for Co0.93Ni0.07SbS0.93Se0.07. Alloying Se on the S site of the structure further boosts the power factor to 22 μW cm–1 K–2 and leads to a maximum ZT of 0.58 at 900 K, which is the best ZT value achieved in the system.

Research Organization:
Northwestern Univ., Evanston, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); 111 Project of China
Grant/Contract Number:
SC0014520; 51521001; 51632006; B07040
OSTI ID:
1775443
Journal Information:
Journal of Materials Chemistry. A, Vol. 6, Issue 31; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

References (71)

Thermopower enhancement in Pb1−xMnxTe alloys and its effect on thermoelectric efficiency journal September 2012
Intrinsic low thermal conductivity in weakly ionic rocksalt structures journal July 2015
Rationally Designing High-Performance Bulk Thermoelectric Materials journal August 2016
Large enhancement of thermoelectric properties in n-type PbTe via dual-site point defects journal January 2017
Synergistic Strategy to Enhance the Thermoelectric Properties of CoSbS 1– x Se x Compounds via Solid Solution journal March 2017
Origin of the High Performance in GeTe-Based Thermoelectric Materials upon Bi 2 Te 3 Doping journal August 2014
Natural mineral tetrahedrite as a direct source of thermoelectric materials journal January 2013
Lattice Thermal Conductivity of Disordered Semiconductor Alloys at High Temperatures journal September 1963
High thermoelectric performance of mechanically robust n-type Bi 2 Te 3−x Se x prepared by combustion synthesis journal January 2015
Complex thermoelectric materials journal February 2008
All-scale hierarchical thermoelectrics: MgTe in PbTe facilitates valence band convergence and suppresses bipolar thermal transport for high performance journal January 2013
Increasing the Thermoelectric Figure of Merit of Tetrahedrites by Co-Doping with Nickel and Zinc journal January 2015
The best thermoelectric. journal July 1996
Effect of Isotopes on Low-Temperature Thermal Conductivity journal February 1957
Strain field fluctuation effects on lattice thermal conductivity of ZrNiSn-based thermoelectric compounds journal August 2004
Specific Heats at Low Temperatures book January 1966
Optimized Thermoelectric Properties of Sb-Doped Mg 2(1+ z ) Si 0.5– y Sn 0.5 Sb y through Adjustment of the Mg Content journal December 2011
Effect of alloying on thermal conductivity and thermoelectric properties of CoAsS and CoSbS journal January 2017
Thermal Conductivity book January 2004
Band Engineering of Thermoelectric Materials journal October 2012
Lower limit to the thermal conductivity of disordered crystals journal September 1992
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
Cu–Bi–Se-based pavonite homologue: a promising thermoelectric material with low lattice thermal conductivity journal January 2013
Extraordinary Thermoelectric Performance Realized in n-Type PbTe through Multiphase Nanostructure Engineering journal August 2017
Chalcopyrite CuGaTe2: A High-Efficiency Bulk Thermoelectric Material journal June 2012
The impact of neutral impurity concentration on charge drift mobility in p-type germanium journal December 2016
High ZT in p-Type (PbTe) 1–2 x (PbSe) x (PbS) x Thermoelectric Materials journal February 2014
Microstructure and thermoelectric properties of CoSb2.75Ge0.25−xTex prepared by rapid solidification journal May 2012
Thermoelectric properties of CoSb3 journal February 2001
Phonon conduction in PbSe, PbTe, and PbTe 1 x Se x from first-principles calculations journal May 2012
Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals journal April 2014
Thermoelectric properties of p -type CuInSe 2 chalcopyrites enhanced by introduction of manganese journal August 2011
The panoscopic approach to high performance thermoelectrics journal January 2014
Modification of the intermediate band and thermoelectric properties in Se-doped CoSbS 1−x Se x compounds journal January 2017
WinPLOTR: A Windows Tool for Powder Diffraction Pattern Analysis journal October 2001
Strong Reduction of Thermal Conductivity and Enhanced Thermoelectric Properties in CoSbS1-xSex Paracostibite journal April 2017
The texture related anisotropy of thermoelectric properties in bismuth telluride based polycrystalline alloys journal September 2011
High Thermoelectric Performance and Enhanced Mechanical Stability of p -type Ge 1– x Sb x Te journal October 2015
Electronic and thermoelectric properties of CoSbS and FeSbS journal January 2013
Thinking Like a Chemist: Intuition in Thermoelectric Materials journal April 2016
Weak electron-phonon coupling contributing to high thermoelectric performance in n-type PbSe journal May 2012
Effect of Point Imperfections on Lattice Thermal Conductivity journal November 1960
Mechanical properties of nanostructured thermoelectric materials α-MgAgSb journal January 2017
High-performance thermoelectric mineral Cu 12− x Ni x Sb 4 S 13 tetrahedrite journal January 2013
High Thermoelectric Performance in Electron-Doped AgBi 3 S 5 with Ultralow Thermal Conductivity journal May 2017
The Scattering of Low-Frequency Lattice Waves by Static Imperfections journal December 1955
Mechanochemical synthesis and thermoelectric properties of high quality magnesium silicide journal January 2011
Doping of thermoelectric PbSe with chemically inert secondary phase nanoparticles journal January 2017
New and Old Concepts in Thermoelectric Materials journal November 2009
Synthesis, processing, and thermoelectric properties of bulk nanostructured bismuth telluride (Bi 2 Te 3 ) journal January 2012
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Thermoelectric Transport in Cu 7 PSe 6 with High Copper Ionic Mobility journal August 2014
Cooling, Heating, Generating Power, and Recovering Waste Heat with Thermoelectric Systems journal September 2008
Strained endotaxial nanostructures with high thermoelectric figure of merit journal January 2011
High Performance Thermoelectricity in Earth-Abundant Compounds Based on Natural Mineral Tetrahedrites journal October 2012
Multiple nanostructures in high performance Cu2S0.5Te0.5 thermoelectric materials journal July 2017
High Performance Thermoelectrics from Earth-Abundant Materials: Enhanced Figure of Merit in PbS by Second Phase Nanostructures journal December 2011
High thermoelectric performance of tellurium doped paracostibite journal January 2016
Non-equilibrium processing leads to record high thermoelectric figure of merit in PbTe–SrTe journal July 2016
Complex thermoelectric materials book October 2010
Self-propagating high-temperature synthesis for compound thermoelectrics and new criterion for combustion processing journal September 2014
Low-cost, abundant binary sulfides as promising thermoelectric materials journal May 2016
Novel ternary sulfide thermoelectric materials from high throughput transport and defect calculations journal January 2016
High thermoelectric performance of p-BiSbTe compounds prepared by ultra-fast thermally induced reaction journal January 2017
Enhanced thermoelectric properties of bismuth telluride bulk achieved by telluride-spilling during the spark plasma sintering process journal January 2018
Bulk nanostructured thermoelectric materials: current research and future prospects journal January 2009
Real Structure and Thermoelectric Properties of GeTe-Rich Germanium Antimony Tellurides journal October 2011
Ultrahigh power factor and thermoelectric performance in hole-doped single-crystal SnSe journal November 2015
The impact of neutral impurity concentration on charge drift mobility in germanium text January 2016
Low effective mass and carrier concentration optimization for high performance p-type Mg 2(1−x) Li 2x Si 0.3 Sn 0.7 solid solutions journal January 2014
Point Defect Engineering of High-Performance Bismuth-Telluride-Based Thermoelectric Materials journal June 2014

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