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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Estimation of the Highest Thermoelectric Performance of the Bi-Doped SnTe at Room Temperature
Bi 도핑에 따른 SnTe의 상온 최대 열전성능지수 예측
Joonha Lee, Hyunjin Park, Jeong-Yeon Kim, Won-Seon Seo, Heesun Yang, Umut Aydemir, Se Yun Kim, Weon Ho Shin, Hyun-Sik Kim이준하, 박현진, 김정연, 서원선, 양희선, Umut Aydemir, 김세윤, 신원호, 김현식
Korean J. Met. Mater.
2023;61(12):915-922. Published online 2023 Nov 30
DOI:
https://doi.org/10.3365/KJMM.2023.61.12.915
Abstract
SnTe has drawn much attention due to its Pb-free composition along with tunable electronic and lattice structures. However, its intrinsically high defect concentration and high lattice thermal conductivity (
κ
1
) have hindered its application in devices. Recently, Bi doping at Sn-sites in Sn
1-
x
Bi
x
Te (
x
= 0.0 – 0.08) has been demonstrated.....
More
The Mechanism Behind the High zT of SnSe
2
Added SnSe at High Temperatures
SnSe
2
결함 도입으로 인한 SnSe의 고온 열전성능 증대 메커니즘
JunSu Kim, Seong-Mee Hwang, Hyunjin Park, Yinglu Tang, Won-Seon Seo, Chae Woo Ryu, Heesun Yang, Weon Ho Shin, Hyun-Sik Kim김준수, 황성미, 박현진, Yinglu Tang, 서원선, 류채우, 양희선, 신원호, 김현식
Korean J. Met. Mater.
2023;61(11):857-866. Published online 2023 Oct 29
DOI:
https://doi.org/10.3365/KJMM.2023.61.11.857
Abstract
SnSe is a promising thermoelectric material due to its low toxicity, low thermal conductivity, and multiple valence band structures, which are ideal for high electronic transport properties. The multiple valence band structure has attracted many attempts to engineer the carrier concentration of the SnSe via doping, to place its fermi.....
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Thermoelectric Properties of Cu-added Polycrystalline Bi
2
O
2
Se Oxyselenide
Si-young Bae, Se Woong Lee, Hyun-Sik Kim, Okmin Park, Hyunjin Park, Won-Seon Seo, Sang-il Kim
Korean J. Met. Mater.
2022;60(12):912-918. Published online 2022 Nov 25
DOI:
https://doi.org/10.3365/KJMM.2022.60.12.912
Abstract
Bi
2
O
2
Se oxyselenide has been actively studied as a potential
n
-type thermoelectric material because of its intrinsically low thermal conductivity and high Seebeck coefficient (S). However, Bi
2
O
2
Se has very low electrical conductivity (σ), resulting in relatively poor thermoelectric performance. Herein, we investigate the effect of Cu addition on the electrical and.....
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