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

Title: Ab initio optimization of phonon drag effect for lower-temperature thermoelectric energy conversion

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [1];  [1];  [1];  [2];  [3];  [1]
  1. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139,
  2. Department of Mechanical and Aerospace Engineering, Rutgers University, Piscataway, NJ 08854,, Institute for Advanced Materials, Devices and Nanotechnology, Rutgers University, Piscataway, NJ 08854,
  3. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139,, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139

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, and further reveals that although the phonon drag is reduced in heavily doped samples, a significant contribution to Seebeck coefficient still exists. An ideal phonon filter is proposed to enhance zT of silicon at room temperature by a factor of 20 to ~0.25, and the enhancement can reach 70 times at 100 K. This work opens up a new venue toward better thermoelectrics by harnessing nonequilibrium phonons.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001299/DE-FG02-09ER46577; SC0001299; FG02-09ER46577
OSTI ID:
1235174
Alternate ID(s):
OSTI ID: 1370969
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Vol. 112 Journal Issue: 48; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 65 works
Citation information provided by
Web of Science

References (45)

Quantitative examination of the thermoelectric power of n ‐type Si in the phonon drag regime journal January 1990
Silicon nanowires as efficient thermoelectric materials journal January 2008
Simple models of phonon-drag in 3D and quasi-2D journal March 1990
Unified Picture for the Colossal Thermopower Compound FeSb 2 journal June 2015
Maximally localized Wannier functions: Theory and applications journal October 2012
Thermal and Electrical Properties of Heavily Doped Ge‐Si Alloys up to 1300°K journal October 1964
Heat transport in silicon from first-principles calculations journal August 2011
Thermal sensors based on the seebeck effect journal November 1986
The Scattering of Low-Frequency Lattice Waves by Static Imperfections journal December 1955
Significant Reduction of Lattice Thermal Conductivity by the Electron-Phonon Interaction in Silicon with High Carrier Concentrations: A First-Principles Study journal March 2015
Seebeck Effect in Germanium journal June 1954
Transport in Metals: Effect of the Nonequilibrium Phonons journal December 1958
Intrinsic phonon relaxation times from first-principles studies of the thermal conductivities of Si and Ge journal February 2010
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials journal September 2009
Enhanced thermoelectric performance of rough silicon nanowires journal January 2008
Heat Transfer in Thermoelectric Materials and Devices journal May 2013
Thermoelectric power of YBa 2 Cu 3 O 7 δ : Phonon drag and multiband conduction journal February 1991
EPW: A program for calculating the electron–phonon coupling using maximally localized Wannier functions journal December 2010
Phonon Drag and Phonon Interactions in n -InSb journal August 1965
Seebeck Effect in Silicon journal May 1955
Method to extract anharmonic force constants from first principles calculations journal April 2008
Convergence of electronic bands for high performance bulk thermoelectrics journal May 2011
Mobility of majority carriers in doped noncompensated silicon journal June 1981
Quenched Phonon Drag in Silicon Microcontacts journal March 1986
The Seebeck coefficient and phonon drag in silicon journal December 2014
Theory of the Thermoelectric Power of Semiconductors journal December 1954
Theory of phonon drag thermopower
  • Klemens, P. G.
  • Fifteenth International Conference on Thermoelectrics. ICT '96, Fifteenth International Conference on Thermoelectrics. Proceedings ICT '96 https://doi.org/10.1109/ICT.1996.553297
conference January 1996
Giant negative phonon drag thermopower in pure bismuth journal August 1977
Giant thermoelectric Seebeck coefficient of a two-dimensional electron gas in SrTiO3 journal January 2007
p-type Bi2Se3 for topological insulator and low-temperature thermoelectric applications journal May 2009
Thermal conductivity and thermoelectric power of heavily doped n-type silicon journal March 1970
High-performance bulk thermoelectrics with all-scale hierarchical architectures journal September 2012
A calculation of the phonon-drag contribution to the thermopower of quasi-2D electrons coupled to 3D phonons. I. General theory journal May 1987
Phonon drag effect in nanocomposite FeSb 2 journal March 2013
A calculation of the phonon-drag contribution to the thermopower of quasi-2D electrons coupled to 3D phonons. II. Applications journal May 1987
Tuning the Temperature Domain of Phonon Drag in Thin Films by the Choice of Substrate journal July 2013
Electron-phonon interaction using Wannier functions journal October 2007
Thermoelectric Power of Germanium below Room Temperature journal October 1953
XVII. The effect of free electrons on lattice conduction journal February 1956
High-Thermoelectric Performance of Nanostructured Bismuth Antimony Telluride Bulk Alloys journal May 2008
Thermoelectric Materials: New Approaches to an Old Problem journal March 1997
Colossal Seebeck coefficient in strongly correlated semiconductor FeSb 2 journal September 2007
The maximum possible conversion efficiency of silicon‐germanium thermoelectric generators journal September 1991
Bemerkung zur Elektronentheorie des Ferromagnetismus und der elektrischen Leitf�higkeit journal July 1929
Transport properties of silicon journal August 1991

Similar Records

Study of the Thermoelectric Properties of Lead Selenide Doped with Boron, Gallium, Indium, or Thallium
Journal Article · Wed Oct 24 00:00:00 EDT 2012 · Journal of the American Chemical Society · OSTI ID:1235174

Grain Boundary Engineering for Achieving High Thermoelectric Performance in n-Type Skutterudites
Journal Article · Fri Feb 17 00:00:00 EST 2017 · Advanced Energy Materials · OSTI ID:1235174

Distinct Impact of Alkali-Ion Doping on Electrical Transport Properties of Thermoelectric p-Type Polycrystalline SnSe
Journal Article · Mon Jun 27 00:00:00 EDT 2016 · Journal of the American Chemical Society · OSTI ID:1235174