skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Large thermoelectric power factor from crystal symmetry-protected non-bonding orbital in half-Heuslers

Journal Article · · Nature Communications
ORCiD logo [1];  [2];  [1]; ORCiD logo [1];  [3]; ORCiD logo [4];  [2];  [2];  [5];  [6];  [2]; ORCiD logo [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Mechanical Engineering
  2. Univ. of Houston, Houston, TX (United States). Dept. of Physics and Texas Center for Superconductivity
  3. Institut für Metallische Werkstoffe, Dresden (Germany). IFW Dresden
  4. Univ. of Houston, Houston, TX (United States). Dept. of Physics and Texas Center for Superconductivity and Dept. of Mechanical Engineering
  5. Univ. of California, Santa Barbara, CA (United States). Dept. of Mechanical Engineering
  6. Univ. of Missouri, Columbia, MO (United States). Dept. of Physics and Astronomy

Modern society relies on high charge mobility for efficient energy production and fast information technologies. The power factor of a material—the combination of electrical conductivity and Seebeck coefficient—measures its ability to extract electrical power from temperature differences. Recent advancements in thermoelectric materials have achieved enhanced Seebeck coefficient by manipulating the electronic band structure. However, this approach generally applies at relatively low conductivities, preventing the realization of exceptionally high-power factors. In contrast, half-Heusler semiconductors have been shown to break through that barrier in a way that could not be explained. Here, we show that symmetry-protected orbital interactions can steer electron–acoustic phonon interactions towards high mobility. This high-mobility regime enables large power factors in half-Heuslers, well above the maximum measured values. We anticipate that our understanding will spark new routes to search for better thermoelectric materials, and to discover high electron mobility semiconductors for electronic and photonic applications.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001299; FG02-09ER46577
OSTI ID:
1526317
Journal Information:
Nature Communications, Vol. 9, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 109 works
Citation information provided by
Web of Science

References (50)

Generalized Gradient Approximation Made Simple journal October 1996
Complex thermoelectric materials journal February 2008
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials journal September 2009
Computation of crystal Green's functions in the complex-energy plane with the use of the analytical tetrahedron method journal March 1984
The intrinsic disorder related alloy scattering in ZrNiSn half-Heusler thermoelectric materials journal November 2014
Recent progress of half-Heusler for moderate temperature thermoelectric applications journal October 2013
EPW: A program for calculating the electron–phonon coupling using maximally localized Wannier functions journal December 2010
Convergence of multi-valley bands as the electronic origin of high thermoelectric performance in CoSb3 skutterudites journal October 2015
Connecting Thermoelectric Performance and Topological-Insulator Behavior: Bi 2 Te 3 and Bi 2 Te 2 Se from First Principles journal January 2015
Deformation Potentials and Mobilities in Non-Polar Crystals journal October 1950
Convergence of electronic bands for high performance bulk thermoelectrics journal May 2011
Enhancement of Thermoelectric Efficiency in PbTe by Distortion of the Electronic Density of States journal July 2008
Achieving high power factor and output power density in p-type half-Heuslers Nb 1-x Ti x FeSb journal November 2016
Prediction and accelerated laboratory discovery of previously unknown 18-electron ABX compounds journal March 2015
Crystal orbital Hamilton populations (COHP): energy-resolved visualization of chemical bonding in solids based on density-functional calculations journal August 1993
High-performance bulk thermoelectrics with all-scale hierarchical architectures journal September 2012
Evaluation of Half-Heusler Compounds as Thermoelectric Materials Based on the Calculated Electrical Transport Properties journal October 2008
Wannier interpolation of the electron-phonon matrix elements in polar semiconductors: Polar-optical coupling in GaAs journal August 2015
New trends, strategies and opportunities in thermoelectric materials: A perspective journal June 2017
Fröhlich Electron-Phonon Vertex from First Principles journal October 2015
Solids and Surfaces: A Chemist's View of Bonding in Extended Structures report July 1988
Electron Transport in InSb, InAs, and InP journal May 1971
Engineering half-Heusler thermoelectric materials using Zintl chemistry journal May 2016
Electron-phonon interactions from first principles journal February 2017
Large Seebeck effect by charge-mobility engineering journal June 2015
Charge Transport in Organic Semiconductors journal April 2007
Enhanced thermoelectric performance of rough silicon nanowires journal January 2008
Theory of Superconductivity journal December 1957
Thermoelectric Properties of Half-Heusler Bismuthides ZrCo1−x Ni x Bi (x = 0.0 to 0.1) journal June 2007
Cooling, Heating, Generating Power, and Recovering Waste Heat with Thermoelectric Systems journal September 2008
The rise of graphene journal March 2007
Experimental Realization of a Three-Dimensional Dirac Semimetal journal July 2014
Acoustic deformation potentials and heterostructure band offsets in semiconductors journal April 1987
High-Thermoelectric Performance of Nanostructured Bismuth Antimony Telluride Bulk Alloys journal May 2008
Doping and temperature dependence of thermoelectric properties in Mg 2 (Si,Sn) journal October 2012
A stable three-dimensional topological Dirac semimetal Cd3As2 journal May 2014
The rise of graphene book August 2009
Complex thermoelectric materials book October 2010
Charge Transport in Organic Semiconductors journal July 2007
Solids and surfaces: A chemist's view of bonding in extended structures journal June 1989
Theory of Superconductivity journal May 1965
Solids and surfaces. A chemist's view of bonding in extended structures. journal February 1990
EPW: A program for calculating the electron–phonon coupling using maximally localized Wannier functions dataset January 2019
EPW: A program for calculating the electron–phonon coupling using maximally localized Wannier functions dataset January 2019
EPW: A program for calculating the electron-phonon coupling using maximally localized Wannier functions text January 2010
Experimental Realization of a Three-Dimensional Dirac Semimetal text January 2013
Large Seebeck Effect by Charge-Mobility Engineering text January 2015
Wannier interpolation of the electron-phonon matrix elements in polar semiconductors: Polar-optical coupling in GaAs text January 2015
Observation of a three-dimensional topological Dirac semimetal phase in high-mobility Cd3As2 journal May 2014
Prediction and accelerated laboratory discovery of previously unknown 18-electron ABX compounds text January 2014

Cited By (19)

Fiber‐Based Energy Conversion Devices for Human‐Body Energy Harvesting journal June 2019
2D Single‐Layer π‐Conjugated Nickel Bis(dithiolene) Complex: A Good‐Electron‐Poor‐Phonon Thermoelectric Material journal March 2019
Manipulation of Ni Interstitials for Realizing Large Power Factor in TiNiSn‐Based Materials journal May 2019
Discovery of TaFeSb-based half-Heuslers with high thermoelectric performance journal January 2019
Designing chemical analogs to PbTe with intrinsic high band degeneracy and low lattice thermal conductivity journal February 2019
Inertial effective mass as an effective descriptor for thermoelectrics via data-driven evaluation journal January 2019
Atomistic study of an ideal metal/thermoelectric contact: The full-Heusler/half-Heusler interface journal January 2019
Impact of the scattering physics on the power factor of complex thermoelectric materials journal October 2019
Thermoelectric transport trends in group 4 half-Heusler alloys journal October 2019
Advances in thermoelectrics journal April 2018
Half Heusler compounds: promising materials for mid-to-high temperature thermoelectric conversion journal September 2019
Characterization of rattling in relation to thermal conductivity: Ordered half-Heusler semiconductors journal February 2020
Phase Boundary Mapping in ZrNiSn Half-Heusler for Enhanced Thermoelectric Performance journal January 2020
Simultaneously high electron and hole mobilities in cubic boron-V compounds: BP, BAs and BSb text January 2018
Atomistic study of an ideal metal/thermoelectric contact: the full-Heusler/half-Heusler interface text January 2018
Half-Heusler Compounds: Promising Materials For Mid-To-High Temperature Thermoelectric Conversion text January 2019
Leveraging Electron-Phonon Interaction to Enhance Thermoelectric Power Factor in Graphene-Like Semimetals text January 2019
Impact of the scattering physics on the power factor of complex thermoelectric materials text January 2019
Characterization of rattling in relation to thermal conductivity: ordered half-Heusler semiconductors text January 2020

Figures / Tables (4)


Related Subjects