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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
Web of Science 1
Approaches to Estimate the Magnitude of Phonon Scattering via Point Defects in Mo(Se
1-x
Te
x
)
2
Thermoelectric Alloys
Mo(Se
1-x
Te
x
)
2
열전합금의 점 결함에 의한 포논 산란 효과 분석
You-Jong Lee, Sang-il Kim, Seong-Mee Hwang, Jeong-Yeon Kim, Won-Seon Seo, Hyun-Sik Kim이유종, 김상일, 황성미, 김정연, 서원선, 김현식
Korean J. Met. Mater.
2023;61(1):38-45. Published online 2022 Dec 28
DOI:
https://doi.org/10.3365/KJMM.2023.61.1.38
Abstract
One of the most popular routes used to improve the thermoelectric performance of materials is to suppress their lattice thermal conductivities. Thermoelectric performance is characterized by a figure-of-merit
zT
, which is defined as
σS
2
T
/(
κ
e
+
κ
l
), where the
σ
,
S
,
T
,
κ
e
, and
κ
l
are the electrical conductivity, Seebeck coefficient,.....
More
Web of Science 1
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