DOI: 10.1073/pnas.1802020115. Phase-transition temperature suppression to achieve cubic GeTe and high thermoelectric performance by Bi and Mn codoping

Phase-transition temperature suppression to achieve cubic GeTe and high thermoelectric performance by Bi and Mn codoping

10.1073/pnas.1802020115

Crossref journal-article

Proceedings of the National Academy of Sciences

Proceedings of the National Academy of Sciences (341)

Abstract

Significance Phase-transition behavior in thermoelectric materials is detrimental for their application in thermoelectric devices. Here we designed, and experimentally realized the high thermoelectric performance of cubic GeTe-based material by suppressing the phase transition from a cubic to a rhombohedral structure to below room temperature through a simple Bi and Mn codoping on the Ge site. Bi doping reduced the hole concentration while Mn alloying largely suppressed the phase-transition temperature and also induced modification of the valence bands. Our work provides the basis for studying phase transitions in other thermoelectric materials to optimize these materials for applications.

Bibliography

Liu, Z., Sun, J., Mao, J., Zhu, H., Ren, W., Zhou, J., Wang, Z., Singh, D. J., Sui, J., Chu, C.-W., & Ren, Z. (2018). Phase-transition temperature suppression to achieve cubic GeTe and high thermoelectric performance by Bi and Mn codoping. Proceedings of the National Academy of Sciences, 115(21), 5332â5337.

Authors 11

Zihang Liu (first)
Jifeng Sun (additional)
Jun Mao (additional)
Hangtian Zhu (additional)
Wuyang Ren (additional)
Jingchao Zhou (additional)
Zhiming Wang (additional)
David J. Singh (additional)
Jiehe Sui (additional)
Ching-Wu Chu (additional)
Zhifeng Ren (additional)

References 60 Referenced 239

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Dates

Type	When
Created	7 years, 3 months ago (May 22, 2018, 1:05 p.m.)
Deposited	3 years, 4 months ago (April 13, 2022, 4:18 a.m.)
Indexed	3 days, 10 hours ago (Aug. 21, 2025, 12:33 p.m.)
Issued	7 years, 3 months ago (May 7, 2018)
Published	7 years, 3 months ago (May 7, 2018)
Published Online	7 years, 3 months ago (May 7, 2018)
Published Print	7 years, 3 months ago (May 22, 2018)

Funders 3

U.S. Department of Energy 10.13039/100000015
Region: Americas
gov (National government)
Labels8
1. Energy Department
2. Department of Energy
3. United States Department of Energy
4. ENERGY.GOV
5. US Department of Energy
6. USDOE
7. DOE
8. USADOE
Awards1
1. DE-SC0010831
DOD | USAF | AFMC | Air Force Office of Scientific Research 10.13039/100000181 Air Force Office of Scientific Research
Region: Americas
gov (National government)
Labels4
1. AF Office of Scientific Research
2. US Air Force Office of Scientific Research
3. United States Air Force Office of Scientific Research
4. AFOSR
Awards1
1. FA9550-15-1-0236
National Natural Science Foundation of China 10.13039/501100001809
Region: Asia
gov (National government)
Labels11
1. Chinese National Science Foundation
2. Natural Science Foundation of China
3. National Science Foundation of China
4. NNSF of China
5. NSF of China
6. 国家自然科学基金委员会
7. National Nature Science Foundation of China
8. Guójiā Zìrán Kēxué Jījīn Wěiyuánhuì
9. NSFC
10. NNSF
11. NNSFC
Awards1
1. 51622101

BibTeX

@article{Liu_2018, title={Phase-transition temperature suppression to achieve cubic GeTe and high thermoelectric performance by Bi and Mn codoping}, volume={115}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.1802020115}, DOI={10.1073/pnas.1802020115}, number={21}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Liu, Zihang and Sun, Jifeng and Mao, Jun and Zhu, Hangtian and Ren, Wuyang and Zhou, Jingchao and Wang, Zhiming and Singh, David J. and Sui, Jiehe and Chu, Ching-Wu and Ren, Zhifeng}, year={2018}, month=may, pages={5332–5337} }

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