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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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정밀한 Pb 도핑을 통한 Bi
0.5
Sb
1.5
Te
3
의 열전 성능 향상: Single Parabolic Band 모델을 이용한 분석
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강지원, 황성미, 김세윤, 이창우, 서원선, 김상일, 김현식
Korean J. Met. Mater.
2024;62(10):787-795. Published online 2024 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2024.62.10.787
Abstract
This study investigates the thermoelectric properties of Pb-doped p-type Bi
0.5
Sb
1.5
Te
3
alloys using the Single Parabolic Band (SPB) model, focusing on optimizing room-temperature performance. We systematically analyze the effects of Pb doping (0, 0.49, 0.65, 0.81, 0.97, and 1.3 at%) on key parameters including density-of-states effective mass (
m
d
*), non-degenerate mobility.....
More
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Debye-Callaway 모델 기반 Yb(Cd
1-
x
Mg
x
)
2
Sb
2
열전 합금의 격자 열전도도 분석
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허민수, 권승환, 서원선, 김상일, 김현식
Korean J. Met. Mater.
2023;61(8):608-615. Published online 2023 Jul 24
DOI:
https://doi.org/10.3365/KJMM.2023.61.8.608
Abstract
YbCd
2
Sb
2
-based Zintl phases have been identified as promising materials for thermoelectric applications due to their high Seebeck coefficient and electrical conductivity. However, their high thermal conductivity limits their overall thermoelectric performance. To address this, Mg has recently been introduced as an alloying element at Cd atomic sites to reduce the.....
More
Web of Science 2
Crossref 2
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Mo(Se
1-x
Te
x
)
2
열전합금의 점 결함에 의한 포논 산란 효과 분석
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이유종, 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
Crossref 1
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