[1] Gingerich DB, Mauter MS. Quantity, quality, and availability of waste heat
from United States thermal power generation. Environ Sci Technol 2015;49:
8297e306.
[2] Bell LE. Cooling, heating, generating power, and recovering waste heat with
thermoelectric systems. Science 2008;321:1457e61.
[3] LeBlanc S. Thermoelectric generators: linking material properties and systems
engineering for waste heat recovery applications. Sustainable Materials and
Technologies 2014;1:26e35.
[4] Snyder GJ, Toberer ES. Complex thermoelectric materials. Nat Mater 2008;7:
105e14.
[5] Zebarjadi M, Esfarjani K, Dresselhaus M, Ren Z, Chen G. Perspectives on
thermoelectrics: from fundamentals to device applications. Energy Environ Sci
2012;5:5147e62.
[6] Kim HS, Liu W, Chen G, Chu C-W, Ren Z. Relationship between thermoelectric
figure of merit and energy conversion efficiency. Proc Natl Acad Sci Unit States
Am 2015;112:8205e10.
[7] Kim HS, Liu W, Ren Z. The bridge between the materials and devices of
thermoelectric power generators. Energy Environ Sci 2017;10:69e85.
[8] Zhu T, Fu C, Xie H, Liu Y, Zhao X. High efficiency half-heusler thermoelectric
materials for energy harvesting. Advanced Energy Materials 2015;5.
[9] Chen S, Ren Z. Recent progress of half-Heusler for moderate temperature
thermoelectric applications. Mater Today 2013;16:387e95.
[10] Poon SJ, Wu D, Zhu S, Xie W, Tritt TM, Thomas P, Venkatasubramanian R. Half-
Heusler phases and nanocomposites as emerging high-ZT thermoelectric
materials. J Mater Res 2011;26:2795e802.
[11] Graf T, Felser C, Parkin SS. Simple rules for the understanding of Heusler
compounds. Prog Solid State Chem 2011;39:1e50.
[12] Bos J-WG, Downie RA. Half-Heusler thermoelectrics: a complex class of materials.
J Phys Condens Matter 2014;26:433201.
[13] Chauhan NS, Bathula S, Vishwakarma A, Bhardwaj R, Gahtori B, Kumar A,
Dhar A. Vanadium doping induced resonant energy levels for the enhancement
of thermoelectric performance in Hf-free ZrNiSn half-heusler alloys. ACS
Appl Energy Mater 2018;1(2):757e64.
[14] Chen S, Lukas KC, Liu W, Opeil CP, Chen G, Ren Z. Effect of Hf concentration on
thermoelectric properties of nanostructured N-type half-heusler materials
HfxZr1exNiSn0. 99Sb0. 01. Advanced Energy Materials 2013;3:1210e4.
[15] Bhardwaj A, Chauhan N, Sancheti B, Pandey G, Senguttuvan T, Misra D. Panoscopically
optimized thermoelectric performance of a half-Heusler/full-
Heusler based in situ bulk composite Zr 0.7 Hf 0.3 Ni 1? x Sn: an energy
and time efficient way. Phys Chem Chem Phys 2015;17:30090e101.
[16] Chauhan NS, Bathula S, Vishwakarma A, Bhardwaj R, Gahtori B, Srivastava AK,
Saravanan M, Dhar A. A nanocomposite approach for enhancement of thermoelectric
performance in Hafnium-free Half-Heuslers. Materialia 2018;1:
168e74.
[17] Chauhan NS, Bathula S, Vishwakarma A, Bhardwaj R, Johari KK, Gahtori B,
Saravanan M, Dhar A. Compositional tuning of ZrNiSn half-Heusler alloys:
thermoelectric characteristics and performance analysis. J Phys Chem Solid
2018;123:105e12.
[18] Bhattacharya S, Pope A, Littleton IV R, Tritt TM, Ponnambalam V, Xia Y, Poon S.
Effect of Sb doping on the thermoelectric properties of Ti-based half-Heusler
compounds, TiNiSn 1 x Sb x. Appl Phys Lett 2000;77:2476e8.
[19] Misra D, Rajput A, Bhardwaj A, Chauhan N, Singh S. Enhanced power factor
and reduced thermal conductivity of a half-Heusler derivative Ti9Ni7Sn8: a
bulk nanocomposite thermoelectric material. Appl Phys Lett 2015;106:
103901.
[20] Chauhan NS, Bhardwaj A, Senguttuvan T, Pant R, Mallik R, Misra D.
A synergistic combination of atomic scale structural engineering and panoscopic
approach in p-type ZrCoSb-based half-Heusler thermoelectric materials
for achieving high ZT. J Mater Chem C 2016;4:5766e78.
[21] Yan X, Liu W, Chen S, Wang H, Zhang Q, Chen G, Ren Z. Thermoelectric
property study of nanostructured p-type half-heuslers (Hf, Zr, Ti) CoSb0. 8Sn0.
2. Advanced Energy Materials 2013;3:1195e200.
[22] Chauhan NS, Bathula S, Vishwakarma A, Bhardwaj R, Johari KK, Gahtori B,
Dhar A. Facile fabrication of p-and n-type half-Heusler alloys with enhanced
thermoelectric performance and low specific contact resistance employing
spark plasma sintering. Mater Lett 2018;228:250e3.
[23] Yan X, Liu W, Wang H, Chen S, Shiomi J, Esfarjani K, Wang H, Wang D, Chen G,
Ren Z. Stronger phonon scattering by larger differences in atomic mass and
size in p-type half-Heuslers Hf 1 x Ti x CoSb 0.8 Sn 0.2. Energy Environ Sci
2012;5:7543e8.
[24] Joshi G, He R, Engber M, Samsonidze G, Pantha T, Dahal E, Dahal K, Yang J,
Lan Y, Kozinsky B. NbFeSb-based p-type half-Heuslers for power generation
applications. Energy Environ Sci 2014;7:4070e6.
[25] Sekimoto T, Kurosaki K, Muta H, Yamanaka S. High-thermoelectric figure of
merit realized in p-type half-Heusler compounds: ZrCoSnxSb1-x. Jpn J Appl
Phys 2007;46:L673.
[26] Rausch E, Balke B, Ouardi S, Felser C. Enhanced thermoelectric performance in
the p-type half-Heusler (Ti/Zr/Hf) CoSb 0.8 Sn 0.2 system via phase separation.
Phys Chem Chem Phys 2014;16:25258e62.
[27] Culp SR, Simonson J, Poon SJ, Ponnambalam V, Edwards J, Tritt TM. (Zr, Hf) Co (Sb, Sn) half-Heusler phases as high-temperature (> 700 C) p-type thermoelectric
materials. Appl Phys Lett 2008;93, 022105.
[28] Takas NJ, Shabetai MR, Poudeu PF. Effect of Sn doping on the thermoelectric
performance of the complex p-type Zr0. 5Hf0. 5Co0. 3Ir0. 7Sb1eySn y halfheusler
system. Sci Adv Mater 2011;3:571e6.
[29] Maji P, Takas NJ, Misra DK, Gabrisch H, Stokes K, Poudeu PF. Effects of Rh on
the thermoelectric performance of the p-type Zr 0.5 Hf 0.5 Co 1 xRhxSb 0.99
Sn 0.01 half-Heusler alloys. J Solid State Chem 2010;183:1120e6.
[30] Hsu C-C, Ma H-K. Microstructure and thermoelectric properties in Fe-doped
ZrCoSb half-Heusler compounds. Mater Sci Eng, B 2015;198:80e5.
[31] Yuan B, Wang B, Huang L, Lei X, Zhao L, Wang C, Zhang Q. Effects of Sb
substitution by Sn on the thermoelectric properties of ZrCoSb. J Electron
Mater 2017;46:3076e82.
[32] He R, Kim HS, Lan Y, Wang D, Chen S, Ren Z. Investigating the thermoelectric
properties of p-type half-Heusler Hf x (ZrTi) 1 x CoSb 0.8 Sn 0.2 by reducing
Hf concentration for power generation. RSC Adv 2014;4:64711e6.
[33] Yan X, Joshi G, Liu W, Lan Y, Wang H, Lee S, Simonson J, Poon S, Tritt T, Chen G.
Enhanced thermoelectric figure of merit of p-type half-Heuslers. Nano Lett
2010;11:556e60.
[34] Zhou X, Yan Y, Lu X, Zhu H, Han X, Chen G, Ren Z. Routes for highperformance
thermoelectric materials, Materials Today 2018.
[35] Berry T, Fu C, Auffermann G, Fecher GH, Schnelle W, Serrano-Sanchez F, Yue Y,
Liang H, Felser C. Enhancing thermoelectric performance of TiNiSn halfheusler
compounds via modulation doping. Chem Mater 2017;29:7042e8.
[36] Wang J, Zhang B-Y, Kang H-J, Li Y, Yaer X, Li J-F, Tan Q, Zhang S, Fan G-H, Liu CY.
Record high thermoelectric performance in bulk SrTiO3 via nano-scale
modulation doping. Nanomater Energy 2017;35:387e95.
[37] Williamson G, Hall W. X-ray line broadening from filed aluminium and
wolfram. Acta Metall 1953;1:22e31.
[38] Yu B, Zebarjadi M, Wang H, Lukas K, Wang H, Wang D, Opeil C, Dresselhaus M,
Chen G, Ren Z. Enhancement of thermoelectric properties by modulationdoping
in silicon germanium alloy nanocomposites. Nano Lett 2012;12:
2077e82.
[39] Pei Y-L, Wu H, Wu D, Zheng F, He J. High thermoelectric performance realized
in a BiCuSeO system by improving Carrier mobility through 3D modulation
doping. J Am Chem Soc 2014;136:13902e8.
[40] Zhu T, Gao H, Chen Y, Zhao X. IoffeeRegel limit and lattice thermal conductivity
reduction of high performance (AgSbTe 2) 15 (GeTe) 85 thermoelectric
materials. J Mater Chem 2014;2:3251e6.
[41] Kim H-S, Gibbs ZM, Tang Y, Wang H, Snyder GJ. Characterization of Lorenz
number with Seebeck coefficient measurement. Apl Mater 2015;3, 041506.
[42] Cahill DG, Braun PV, Chen G, Clarke DR, Fan S, Goodson KE, Keblinski P,
King WP, Mahan GD, Majumdar A. Nanoscale thermal transport. II.
2003e2012. Appl Phys Rev 2014;1, 011305.
[43] Kittel C. Interpretation of the thermal conductivity of glasses. Phys Rev
1949;75:972.
[44] Zhu T, Fu C, Xie H, Liu Y, Feng B, Xie J, Zhao X. Lattice thermal conductivity and
spectral phonon scattering in FeVSb-based half-Heusler compounds. EPL
(Europhysics Letters) 2013;104:46003.
[45] Hermet P, Jund P. Lattice thermal conductivity of NiTiSn half-Heusler thermoelectric
materials from first-principles calculations. J Alloy Comp
2016;688:248e52.
[46] Sharp J, Poon S, Goldsmid H. Boundary scattering and the thermoelectric
figure of merit. Phys Status Solidi 2001;187:507e16.
[47] Bhattacharya S, Skove M, Russell M, Tritt T, Xia Y, Ponnambalam V, Poon S,
Thadhani N. Effect of boundary scattering on the thermal conductivity of
TiNiSn-based half-Heusler alloys. Phys Rev B 2008;77:184203.
[48] Fu C, Liu Y, Xie H, Liu X, Zhao X, Jeffrey Snyder G, Xie J, Zhu T. Electron and
phonon transport in Co-doped FeV0. 6Nb0. 4Sb half-Heusler thermoelectric
materials. J Appl Phys 2013;114:134905.
[49] Rausch E, Balke B, Stahlhofen JM, Ouardi S, Burkhardt U, Felser C. Fine tuning
of thermoelectric performance in phase-separated half-Heusler compounds.
J Mater Chem C 2015;3:10409e14.
[50] Fu C, Zhu T, Liu Y, Xie H, Zhao X. Band engineering of high performance p-type
FeNbSb based half-Heusler thermoelectric materials for figure of merit zT> 1.
Energy Environ Sci 2015;8:216e20.
[51] Fu C, Zhu T, Pei Y, Xie H, Wang H, Snyder GJ, Liu Y, Liu Y, Zhao X. High band
degeneracy contributes to high thermoelectric performance in p-type halfheusler
compounds. Advanced Energy Materials 2014;4.
[52] Yu J, Fu C, Liu Y, Xia K, Aydemir U, Chasapis TC, Snyder GJ, Zhao X, Zhu T.
Unique role of refractory Ta alloying in enhancing the figure of merit of
NbFeSb thermoelectric materials. Advanced Energy Materials 2018;8:
1701313.
[53] Bathula S, Jayasimhadri M, Gahtori B, Singh NK, Tyagi K, Srivastava A, Dhar A.
The role of nanoscale defect features in enhancing the thermoelectric performance
of p-type nanostructured SiGe alloys. Nanoscale 2015;7:12474e83.
[54] Prasad KS, Rao A, Tyagi K, Chauhan NS, Gahtori B, Bathula S, Dhar A. Enhanced
thermoelectric performance of Pb doped Cu2SnSe3 synthesized employing
spark plasma sintering. Phys B Condens Matter 2017;512:39e44.
[55] Prasad KS, Rao A, Chauhan NS, Bhardwaj R, Vishwakarma A, Tyagi K. Thermoelectric
properties of p-type sb-doped Cu2SnSe3 near room and mid
temperature applications. Appl Phys A 2018;124:98.
[56] Upadhyay NK, Kumaraswamidhas L, Gahtori B, Bathula S, Muthiah S, Shyam R,
Chauhan NS, Bhardwaj R, Dhar A. Enhancement in thermoelectric performance
of bulk CrSi 2 dispersed with nanostructured SiGe nanoinclusions.
J Alloy Comp 2018;765:412e7.
[57] He R, Kraemer D, Mao J, Zeng L, Jie Q, Lan Y, Li C, Shuai J, Kim HS, Liu Y.
Achieving high power factor and output power density in p-type half-
Heuslers Nb1-xTixFeSb. Proc Natl Acad Sci Unit States Am 2016;113:
13576e81.
[58] Snyder GJ, Ursell TS. Thermoelectric efficiency and compatibility. Phys Rev
Lett 2003;91:148301.
[59] Snyder GJ, Caillat T. Using the compatibility factor to design high efficiency
segmented thermoelectric generators. In: MRS Online Proceedings Library
Archive; 2003. p. 793.