Effect of selenium deficiency on the thermoelectric properties of n-type In4Se3-x compounds

Zhu, G. H.; Lan, Y. C.; Wang, H.; Joshi, G.; Hao, Q.; Chen, G.; Ren, Z. F.

doi:10.1103/PhysRevB.83.115201

Title: Effect of selenium deficiency on the thermoelectric properties of n-type In₄Se_3-xcompounds

Journal Article · Fri Mar 04 00:00:00 EST 2011 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.83.115201· OSTI ID:1386847

Zhu, G. H. ^[1]; Lan, Y. C. ^[1]; Wang, H. ^[1]; Joshi, G. ^[1]; Hao, Q. ^[2]; Chen, G. ^[2]; Ren, Z. F. ^[1]

Boston College, Chestnut Hill, MA (United States)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Thermoelectric properties of dense bulk polycrystalline In₄Se_3–x (x = 0, 0.25, 0.5, 0.65, and 0.8) compounds are investigated. A peak dimensionless thermoelectric figure of merit (ZT) of about 1 is achieved for x = 0.65 and 0.8. The peak ZT is about 50% higher than the previously reported highest value for polycrystalline In₄Se_3–x compounds. Our In₄Se_3–x samples were prepared by ball milling and hot pressing. We show that it is possible to effectively control the electrical conductivity and thermal conductivity by controlling selenium (Se) deficiency x. Here, the ZT enhancement is mainly attributed to the thermal conductivity reduction due to the increased phonon scattering by Se deficiency, defects, and nanoscale inclusions in the ball-milled and hot-pressed dense bulk In₄Se_3–x samples.

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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:: 1386847

Alternate ID(s):: OSTI ID: 1099965

Journal Information:: Physical Review. B, Condensed Matter and Materials Physics, Vol. 83, Issue 11; Related Information: S3TEC partners with Massachusetts Institute of Technology (lead); Boston College; Oak Ridge National Laboratory; Rensselaer Polytechnic Institute; ISSN 1098-0121

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 63 works

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Cited By (6)

Eco-Friendly SnTe Thermoelectric Materials: Progress and Future Challenges Moshwan, Raza; Yang, Lei; Zou, Jin Advanced Functional Materials, Vol. 27, Issue 43 https://doi.org/10.1002/adfm.201703278	journal	September 2017
Boundary Engineering for the Thermoelectric Performance of Bulk Alloys Based on Bismuth Telluride Mun, Hyeona; Choi, Soon-Mok; Lee, Kyu Hyoung ChemSusChem, Vol. 8, Issue 14 https://doi.org/10.1002/cssc.201403485	journal	March 2015
Indium Selenides: Structural Characteristics, Synthesis and Their Thermoelectric Performances Han, Guang; Chen, Zhi-Gang; Drennan, John Small, Vol. 10, Issue 14 https://doi.org/10.1002/smll.201400104	journal	April 2014
Structural and Thermoelectric Properties of Solid–Liquid In4Se3-In Composite Luu, Son D. N.; Parashchuk, Taras; Kosonowski, Artur Journal of Electronic Materials, Vol. 48, Issue 9 https://doi.org/10.1007/s11664-019-07399-w	journal	July 2019
Thermal stability and oxidation of layer-structured rhombohedral In ₃ Se ₄ nanostructures Han, Guang; Chen, Zhi-Gang; Yang, Lei Applied Physics Letters, Vol. 103, Issue 26 https://doi.org/10.1063/1.4857655	journal	December 2013
Recent advances in high-performance bulk thermoelectric materials Shi, X.; Chen, L.; Uher, C. International Materials Reviews, Vol. 61, Issue 6 https://doi.org/10.1080/09506608.2016.1183075	journal	May 2016

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FIG. 3(p. 4)

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Title: Effect of selenium deficiency on the thermoelectric properties of n-type In4Se3-x compounds

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