Lattice Dislocations Enhancing Thermoelectric PbTe in Addition to Band Convergence
Abstract
Phonon scattering by nanostructures and point defects has become the primary strategy for minimizing the lattice thermal conductivity (κL) in thermoelectric materials. However, these scatterers are only effective at the extremes of the phonon spectrum. Recently, it has been demonstrated that dislocations are effective at scattering the remaining mid-frequency phonons as well. In this work, by varying the concentration of Na in Pb0.97Eu0.03Te, it has been determined that the dominant microstructural features are point defects, lattice dislocations, and nanostructure interfaces. This study reveals that dense lattice dislocations (≈4 × 1012 cm-2) are particularly effective at reducing κL. When the dislocation concentration is maximized, one of the lowest κL values reported for PbTe is achieved. Furthermore, due to the band convergence of the alloyed 3% mol. EuTe the electronic performance is enhanced, and a high thermoelectric figure of merit, zT, of ≈2.2 is achieved. This work not only demonstrates the effectiveness of dense lattice dislocations as a means of lowering κL, but also the importance of engineering both thermal and electronic transport simultaneously when designing high-performance thermoelectrics.
- Authors:
-
- Tongji Univ., Shanghai (China). Key Lab. of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering
- Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics, Inst. of Physics
- Northwestern Univ., Evanston, IL (United States)
- Shanghai Univ., Shanghai (China). Materials Genome Inst.
- Univ. of Hong Kong (Hong Kong). Dept. of Mechanical Engineering
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1470458
- Alternate Identifier(s):
- OSTI ID: 1401533
- Grant/Contract Number:
- SC0001299; FG02-09ER46577
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Advanced Materials
- Additional Journal Information:
- Journal Volume: 29; Journal Issue: 23; Related Information: S3TEC partners with Massachusetts Institute of Technology (lead); Boston College; Oak Ridge National Laboratory; Rensselaer Polytechnic Institute; Journal ID: ISSN 0935-9648
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 42 ENGINEERING; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; band convergence; lattice dislocations; lattice thermal conductivity; thermoelectrics; solar (photovoltaic); solar (thermal); solid state lighting; phonons; thermal conductivity; thermoelectric; defects; mechanical behavior; charge transport; spin dynamics; materials and chemistry by design; optics; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing)
Citation Formats
Chen, Zhiwei, Jian, Zhengzhong, Li, Wen, Chang, Yunjie, Ge, Binghui, Hanus, Riley, Yang, Jiong, Chen, Yue, Huang, Mingxin, Snyder, Gerald Jeffrey, and Pei, Yanzhong. Lattice Dislocations Enhancing Thermoelectric PbTe in Addition to Band Convergence. United States: N. p., 2017.
Web. doi:10.1002/adma.201606768.
Chen, Zhiwei, Jian, Zhengzhong, Li, Wen, Chang, Yunjie, Ge, Binghui, Hanus, Riley, Yang, Jiong, Chen, Yue, Huang, Mingxin, Snyder, Gerald Jeffrey, & Pei, Yanzhong. Lattice Dislocations Enhancing Thermoelectric PbTe in Addition to Band Convergence. United States. https://doi.org/10.1002/adma.201606768
Chen, Zhiwei, Jian, Zhengzhong, Li, Wen, Chang, Yunjie, Ge, Binghui, Hanus, Riley, Yang, Jiong, Chen, Yue, Huang, Mingxin, Snyder, Gerald Jeffrey, and Pei, Yanzhong. Tue .
"Lattice Dislocations Enhancing Thermoelectric PbTe in Addition to Band Convergence". United States. https://doi.org/10.1002/adma.201606768. https://www.osti.gov/servlets/purl/1470458.
@article{osti_1470458,
title = {Lattice Dislocations Enhancing Thermoelectric PbTe in Addition to Band Convergence},
author = {Chen, Zhiwei and Jian, Zhengzhong and Li, Wen and Chang, Yunjie and Ge, Binghui and Hanus, Riley and Yang, Jiong and Chen, Yue and Huang, Mingxin and Snyder, Gerald Jeffrey and Pei, Yanzhong},
abstractNote = {Phonon scattering by nanostructures and point defects has become the primary strategy for minimizing the lattice thermal conductivity (κL) in thermoelectric materials. However, these scatterers are only effective at the extremes of the phonon spectrum. Recently, it has been demonstrated that dislocations are effective at scattering the remaining mid-frequency phonons as well. In this work, by varying the concentration of Na in Pb0.97Eu0.03Te, it has been determined that the dominant microstructural features are point defects, lattice dislocations, and nanostructure interfaces. This study reveals that dense lattice dislocations (≈4 × 1012 cm-2) are particularly effective at reducing κL. When the dislocation concentration is maximized, one of the lowest κL values reported for PbTe is achieved. Furthermore, due to the band convergence of the alloyed 3% mol. EuTe the electronic performance is enhanced, and a high thermoelectric figure of merit, zT, of ≈2.2 is achieved. This work not only demonstrates the effectiveness of dense lattice dislocations as a means of lowering κL, but also the importance of engineering both thermal and electronic transport simultaneously when designing high-performance thermoelectrics.},
doi = {10.1002/adma.201606768},
journal = {Advanced Materials},
number = 23,
volume = 29,
place = {United States},
year = {Tue Apr 11 00:00:00 EDT 2017},
month = {Tue Apr 11 00:00:00 EDT 2017}
}
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- Advanced Materials, Vol. 31, Issue 49
Achieving zT > 2 in p-Type AgSbTe 2− x Se x Alloys via Exploring the Extra Light Valence Band and Introducing Dense Stacking Faults
journal, December 2017
- Hong, Min; Chen, Zhi-Gang; Yang, Lei
- Advanced Energy Materials, Vol. 8, Issue 9
Weak Electron Phonon Coupling and Deep Level Impurity for High Thermoelectric Performance Pb 1− x Ga x Te
journal, May 2018
- Su, Xianli; Hao, Shiqiang; Bailey, Trevor P.
- Advanced Energy Materials, Vol. 8, Issue 21
Grain Boundary Scattering of Charge Transport in n‐Type (Hf,Zr)CoSb Half‐Heusler Thermoelectric Materials
journal, January 2019
- Qiu, Qinyi; Liu, Yintu; Xia, Kaiyang
- Advanced Energy Materials, Vol. 9, Issue 11
Synergistically Enhancing Thermoelectric Performance of n‐Type PbTe with Indium Doping and Sulfur Alloying
journal, December 2019
- Wang, Dongyang; Qin, Yongxin; Wang, Sining
- Annalen der Physik, Vol. 532, Issue 11
Enhanced thermoelectric properties of Cu2−δSe nanopowder dispersed Bi2Ba2Co2Oy ceramics
journal, September 2018
- Cao, Ruijuan; Li, Erying; Hu, Qiujun
- Applied Physics A, Vol. 124, Issue 10
High thermoelectric performance of n-type Bi 2 Te 2.7 Se 0.3 via nanostructure engineering
journal, January 2018
- Li, D.; Li, J. M.; Li, J. C.
- Journal of Materials Chemistry A, Vol. 6, Issue 20
High thermoelectric performance of single phase p-type cerium-filled skutterudites by dislocation engineering
journal, January 2018
- Meng, Xianfu; Liu, Yuan; Cui, Bo
- Journal of Materials Chemistry A, Vol. 6, Issue 41
Core–shell nanostructures introduce multiple potential barriers to enhance energy filtering for the improvement of the thermoelectric properties of SnTe
journal, January 2020
- Ma, Zheng; Wang, Chao; Lei, Jingdan
- Nanoscale, Vol. 12, Issue 3
Thermoelectric (Bi,Sb) 2 Te 3 –Ge 0.5 Mn 0.5 Te composites with excellent mechanical properties
journal, January 2019
- Duan, Sichen; Man, Na; Xu, Jingtao
- Journal of Materials Chemistry A, Vol. 7, Issue 15
Rationalizing phonon dispersion for lattice thermal conductivity of solids
journal, September 2018
- Chen, Zhiwei; Zhang, Xinyue; Lin, Siqi
- National Science Review, Vol. 5, Issue 6
Detrimental Effects of Doping Al and Ba on the Thermoelectric Performance of GeTe
journal, November 2018
- Srinivasan, Bhuvanesh; Gellé, Alain; Halet, Jean-François
- Materials, Vol. 11, Issue 11
Influence of Nanostructuration on PbTe Alloys Synthesized by Arc-Melting
journal, November 2019
- Gainza, Javier; Serrano-Sánchez, Federico; Biskup, Neven
- Materials, Vol. 12, Issue 22
Manipulation of Band Degeneracy and Lattice Strain for Extraordinary PbTe Thermoelectrics
journal, January 2020
- Wu, Yixuan; Nan, Pengfei; Chen, Zhiwei
- Research, Vol. 2020
High‐Performance Thermoelectric SnSe: Aqueous Synthesis, Innovations, and Challenges
journal, February 2020
- Shi, Xiao‐Lei; Tao, Xinyong; Zou, Jin
- Advanced Science, Vol. 7, Issue 7
Improved electrical transport properties and optimized thermoelectric figure of merit in lithium-doped copper sulfides
journal, March 2018
- Guan, Meng-Jia; Qiu, Peng-Fei; Song, Qing-Feng
- Rare Metals, Vol. 37, Issue 4
Promising cubic MnGeTe2 thermoelectrics
journal, August 2018
- Zhou, Binqiang; Li, Wen; Wang, Xiao
- Science China Materials, Vol. 62, Issue 3
Fermi-surface dynamics and high thermoelectric performance along the out-of-plane direction in n-type SnSe crystals
journal, January 2020
- Mao, Lisha; Yin, Yinong; Zhang, Qiang
- Energy & Environmental Science, Vol. 13, Issue 2
Enhancing thermoelectric performance by Fermi level tuning and thermal conductivity degradation in (Ge1−xBix)Te crystals
journal, June 2019
- Wei, Pai-Chun; Cai, Cheng-Xun; Hsing, Cheng-Rong
- Scientific Reports, Vol. 9, Issue 1
Improved Thermoelectric Properties and Environmental Stability of Conducting PEDOT:PSS Films Post-treated With Imidazolium Ionic Liquids
journal, January 2020
- Yemata, Temesgen Atnafu; Zheng, Yun; Kyaw, Aung Ko Ko
- Frontiers in Chemistry, Vol. 7
Influence of Nanostructuration on PbTe Alloys Synthesized by Arc-Melting
journal, November 2019
- Gainza, Javier; Serrano-Sánchez, Federico; Biskup, Neven
- Materials, Vol. 12, Issue 22
Manipulation of Band Degeneracy and Lattice Strain for Extraordinary PbTe Thermoelectrics
journal, January 2020
- Wu, Yixuan; Nan, Pengfei; Chen, Zhiwei
- Research, Vol. 2020