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Korean J. Met. Mater.
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M
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La과 Mn으로 이중 도핑된 n형 Mg
3
La
0.005
Mn
x
SbBi의 열전특성
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주성재, 손지희, 장정인, 민복기, 김봉서
Korean J. Met. Mater.
2024;62(1):45-50. Published online 2023 Dec 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.1.45
Abstract
Mg
3
Sb
2
-based n-type materials are consisted of earth-abundant elements and possess comparable thermoelectric properties with n-type Bi
2
Te
3
at low temperatures, which make them promising candidates for cooling and power generation applications in terms of cost and performance. Substitution of Sb atom with chalcogen elements (Te, Se S) is a conventional method.....
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Korean J. Met. Mater.
2023;61(11):842-848. Published online 2023 Oct 29
DOI:
https://doi.org/10.3365/KJMM.2023.61.11.842
Abstract
SnSe
2
alloys have been investigated in recent times as potential
n
-type thermoelectric materials. In this study, the thermoelectric transport properties of a series of Sb-doped SnSe
2
, Sn(Se
1-x
Sb
x
)
2
(
x
= 0, 0.015, 0.03, 0.045, 0.06) alloys are investigated. The electrical conductivity was generally enhanced with Sb doping owing to a large.....
More
Web of Science 1
Crossref 1
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소결온도 최적화에 의한 Mg
3
SbBi
0.99
Te
0.01
n형 소재의 열전특성 향상
S
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주성재, 손지희, 장정인, 김봉서, 민복기
Korean J. Met. Mater.
2023;61(10):785-792. Published online 2023 Sep 25
DOI:
https://doi.org/10.3365/KJMM.2023.61.10.785
Abstract
Mg
3
Sb
2
-based materials are promising candidates to replace n-type Bi
2
Te
3
for cooling and power generation at low temperatures. Generally, the thermoelectric performance of a material is sensitively affected by synthesis process parameters, and among them, sintering temperature (
T
s
) is a critical one. In this study, n-type Mg
3
SbBi
0.99
Te
0.01
polycrystalline samples were fabricated.....
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열전 복합체 필름을 이용한 스트레쳐블 에너지 하베스팅 소자 개발
C
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김철민, 박귀일
Korean J. Met. Mater.
2023;61(8):594-601. Published online 2023 Jul 20
DOI:
https://doi.org/10.3365/KJMM.2023.61.8.594
Abstract
Thermoelectric energy harvesting has attracted a lot of attention for powering self-powered devices because of the potential to generate energy anywhere with a temperature difference. In particular, a stretchable thermoelectric generator (S-TEG) can be applied to the repetitively moving parts of a machine and even a human body. Herein, we.....
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Korean J. Met. Mater.
2023;61(7):489-499. Published online 2023 Jun 21
DOI:
https://doi.org/10.3365/KJMM.2023.61.7.489
Abstract
Cu
3
Sb
1–x–y
Ge
x
In
y
Se
4
(0.02 ≤
x
≤ 0.12; 0.04 ≤
y
≤ 0.08) permingeatite compounds doped with Ge and In were prepared using solid-state synthesis. The phases and microstructures were analyzed, and the charge transport and thermoelectric properties were evaluated according to the Ge and In doping content. Most of the samples.....
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La 도핑된 n형 Mg
3
SbBi 열전소재의 합성 및 열전특성
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주성재, 손지희, 장정인, 민복기, 김봉서
Korean J. Met. Mater.
2023;61(6):437-443. Published online 2023 May 18
DOI:
https://doi.org/10.3365/KJMM.2023.61.6.437
Abstract
Mg
3
Sb
2
-based materials are very promising for thermoelectric applications at low temperatures, and are strong candidates to replace n-type Bi
2
Te
3
for cooling and power generation. Substituting Sb atoms with chalcogen elements (S, Se, Te) is a typical method of n-type doping, while doping the Mg site with Group 3 elements (Y,.....
More
Crossref 1
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Korean J. Met. Mater.
2023;61(6):431-436. Published online 2023 May 18
DOI:
https://doi.org/10.3365/KJMM.2023.61.6.431
Abstract
The addition of Cu to layered Bi
2
Te
3
-based thermoelectric alloys has been studied as an effective way to enhance thermoelectric transport properties. In this study, the influence of adding Cu to Bi
2
Se
3
alloys, which have the same rhombohedral crystal structure as Bi
2
Te
3
, was investigated by synthesizing a series of Cu
x
Bi
2
Se
3
(
x
.....
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Web of Science 1
Crossref 1
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Korean J. Met. Mater.
2023;61(6):422-430. Published online 2023 May 18
DOI:
https://doi.org/10.3365/KJMM.2023.61.6.422
Abstract
Cu–Sb–Se ternary chalcogenide compounds composed of earth-abundant low-toxicity elements are attracting attention as economical and ecofriendly semiconductors. Among them, permingeatite (Cu
3
SbSe
4
) is a potential thermoelectric material with high Seebeck coefficient and low lattice thermal conductivity. However, it is necessary to improve its thermoelectric properties through doping, as it has low.....
More
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Korean J. Met. Mater.
2023;61(5):363-370. Published online 2023 Apr 20
DOI:
https://doi.org/10.3365/KJMM.2023.61.5.363
Abstract
Bytizite (Cu
3
SbSe
3
) has attracted interest as a promising thermoelectric material because of its ultralow thermal conductivity; however, there are few experimental studies. This study investigated the optimal processing conditions for the synthesis of Cu
3
SbSe
3
using mechanical alloying (MA) and hot pressing (HP). The MA powder exhibited an orthorhombic Cu
3
SbSe
3
.....
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Korean J. Met. Mater.
2023;61(5):355-362. Published online 2023 Apr 20
DOI:
https://doi.org/10.3365/KJMM.2023.61.5.355
Abstract
Famatinite (Cu
3
SbS
4
) is a promising p-type thermoelectric material because of its low lattice thermal conductivity and high Seebeck coefficient. In this study, famatinite powders, double-doped with Sn (a B
IV
group element) and In (a B
III
group element) to give Cu
3
Sb
1-x-y
Sn
x
In
y
S
4
(0.02 ≤ x ≤ 0.12 and 0.06 ≤.....
More
Web of Science 1
Crossref 2
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Korean J. Met. Mater.
2023;61(4):277-283. Published online 2023 Mar 22
DOI:
https://doi.org/10.3365/KJMM.2023.61.4.277
Abstract
Skinnerite (Cu
3
SbS
3
) has recently attracted attention as a promising thermoelectric material because of its low thermal conductivity. In this study, we performed the solid-state synthesis of Fe-doped skinnerite Cu
3
Sb
1-y
Fe
y
S
3
(y = 0.02−0.06) using mechanical alloying and hot pressing, and examined the samples’ thermoelectric properties relative to Fe doping content. All.....
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Korean J. Met. Mater.
2023;61(4):269-276. Published online 2023 Mar 22
DOI:
https://doi.org/10.3365/KJMM.2023.61.4.269
Abstract
Permingeatite (Cu
3
SbSe
4
) is a promising thermoelectric material with narrow bandgap energy and large carrier effective mass. However, doping is required to improve its electrical conductivity and thermoelectric properties. In this study, Cu
3
Sb
1−y
(Al/In)
y
Se
4
doped with B
III
-group elements (Al or In) at the Sb sites was synthesized using mechanical alloying followed by.....
More
Web of Science 1
Crossref 1
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열간압출 공정으로 제조한 Bi
2
Te
2.7
Se
0.3
의 전기전도 특성
J
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n
g
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H
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L
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황정윤, Rahidul Hasan, 이규형
Korean J. Met. Mater.
2023;61(3):213-217. Published online 2023 Feb 24
DOI:
https://doi.org/10.3365/KJMM.2023.61.3.213
Abstract
Herein we report the optimized processing conditions of hot extrusion for fabricating an
n
-type Bi
2
Te
2.7
Se
0.3
thermoelectric compound, with high electronic transport properties as well as improved mechanical reliability. We fabricated a Bi
2
Te
2.7
Se
0.3
extrudate that was 3.8 mm in diameter and 700 mm in length by controlling the processing parameters of.....
More
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-
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K
i
m
Korean J. Met. Mater.
2023;61(3):206-212. Published online 2023 Feb 24
DOI:
https://doi.org/10.3365/KJMM.2023.61.3.206
Abstract
Bi
2
Te
3
-based alloys have been extensively studied as thermoelectric materials near room temperature. In this study, the electrical, thermal, and thermoelectric transport properties of a series of Co-doped
n
-type Cu
0.008
Bi
2
Te
2.6
Se
0.4
polycrystalline alloys (Cu
0.008
Bi
2−x
Co
x
Te
2.6
Se
0.4
,
x
= 0, 0.03, 0.06, 0.09 and 0.12) are investigated. The electrical conductivity of the Cu
0.008
Bi
1.97
Co
0.03
Te
2.6
Se
0.4
(
x
=.....
More
Web of Science 2
Crossref 2
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M
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Two-Band 모델을 이용한 작은 밴드 갭을 가진 Fe(Se
1-x
Te
x
)
2
열전합금의 전기적 수송 특성 분석
S
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황성미, 김상일, 허민수, 이기영, 양희선, 서원선, 김현식
Korean J. Met. Mater.
2023;61(2):98-106. Published online 2023 Jan 27
DOI:
https://doi.org/10.3365/KJMM.2023.61.2.98
Abstract
Environmentally sustainable thermoelectric technologies can be more broadly applied in industries once the performance of thermoelectric materials is improved. Several approaches have been proposed to improve the electronic transport properties of thermoelectric materials. The effects of each approach on the electronic properties can be evaluated by changes in the band.....
More
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b
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>
대기중 안정한 MAPbI
3
에서의 Photo Seebeck 효과
Y
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K
i
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,
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y
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g
n
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P
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김유성, 박병남
Korean J. Met. Mater.
2023;61(2):91-97. Published online 2023 Jan 27
DOI:
https://doi.org/10.3365/KJMM.2023.61.2.91
Abstract
With increasing interest in energy harvesting using heat as a next-generation eco-friendly energy source, organic-inorganic perovskite materials have emerged as promising materials for thermoelectric devices. In particular, the photo-Seebeck effect of halide perovskite materials has attracted attention due to their wide optical absorption spectrum and large diffusion length, depending on.....
More
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K
i
m
Korean J. Met. Mater.
2023;61(1):46-53. Published online 2022 Dec 28
DOI:
https://doi.org/10.3365/KJMM.2023.61.1.46
Abstract
In this study, Cu
3
Sb
1-y
Sn
y
Se
4
(0 ≤ y ≤ 0.08) permingeatites were synthesized via mechanical alloying followed by hot pressing. The phase transformation, microstructure, charge transport parameters of the permingeatites, and their thermoelectric properties were analyzed. The permingeatites were present in a single phase with a tetragonal structure, and secondary phases.....
More
T
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K
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Korean J. Met. Mater.
2022;60(12):926-932. Published online 2022 Nov 25
DOI:
https://doi.org/10.3365/KJMM.2022.60.12.926
Abstract
We investigated the effect of Ni doping on the electrical, thermal, and thermoelectric transport properties of FeSe
2
polycrystalline alloys. FeSe
2
alloys exhibit both n-type and p-type conduction at different temperatures and thus their practicality as a thermoelectric material is somewhat limited. In this study, Fe
1-x
Ni
x
Se
2
polycrystalline samples with
x
=.....
More
Web of Science 4
Crossref 4
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K
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Korean J. Met. Mater.
2022;60(12):919-925. Published online 2022 Nov 25
DOI:
https://doi.org/10.3365/KJMM.2022.60.12.919
Abstract
Re
2
Te
5
is considered a potential thermoelectric material because of its intrinsically low thermal conductivity, due to its complex crystal structure. Herein, a series of Se-doped Re
2
Te
5
(Re
2
Te
5-x
Se
x
,
x
= 0, 0.2, 1, and 2) samples were synthesized, and their electrical and thermal transport properties were investigated. Pure orthorhombic Re
2
Te
5
phases.....
More
Web of Science 3
Crossref 3
T
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i
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-
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K
i
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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.....
More
Web of Science 2
Crossref 2
E
f
f
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s
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f
V
A
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b
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J
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,
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-
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-
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K
i
m
,
B
o
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-
K
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M
i
n
Korean J. Met. Mater.
2022;60(11):858-864. Published online 2022 Oct 31
DOI:
https://doi.org/10.3365/KJMM.2022.60.11.858
Abstract
NbFeSb-based alloys are promising
p
-type half-Heusler materials with excellent thermoelectric performance, thermal stability, and naturally abundant constituent elements. Alloying and doping are powerful techniques for enhancing the thermoelectric properties of half-Heusler materials. This study experimentally investigated the effects of V alloying in NbFeSb codoped with Ti, Zr, and Sn. As.....
More
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a
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-
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H
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K
i
m
Korean J. Met. Mater.
2022;60(8):593-600. Published online 2022 Jul 12
DOI:
https://doi.org/10.3365/KJMM.2022.60.8.593
Abstract
In this study, mechanical alloying was performed to synthesize permingeatite Cu
3
Sb
1-x-y
Sn
x
Bi
y
Se
4
(0.02 ≤ x ≤ 0.06 and 0.02 ≤ y ≤ 0.04) doped with Sn and Bi. Hot pressing was subsequently conducted to achieve dense sintered bodies. When the Bi content was constant, the carrier concentration increased with the Sn.....
More
Web of Science 2
Crossref 2
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(
0
x
1
)
c
o
m
p
o
u
n
d
s
Pb(Bi1
-x
Sn
x
)
2
Te
4
(0≤x≤1) 화합물의 열전수송특성 연구
W
o
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a
m
,
Y
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u
n
g
S
o
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L
i
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남우현, 임영수
Korean J. Met. Mater.
2022;60(8):587-592. Published online 2022 Jul 12
DOI:
https://doi.org/10.3365/KJMM.2022.60.8.587
Abstract
In this study, the effect of Sb incorporation on the thermoelectric transport properties of tetradymite-type Pb(Bi
2-x
Sb
x
)Te
4
(0≤x≤1) compounds is presented. PbBi
2
Te
4
(x = 0) possesses a high electron concentration of ~1.6×10
20
/cm
3
at room temperature and exhibits n-type degenerate semiconductor behavior, in which electrical conductivity decreases and negative Seebeck coefficient increases.....
More
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.
7
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.
3
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>
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s
산화물 환원공정에 의한 n형 Bi
2
Te
2.7
Se
0.3
화합물의 합성과 열전특성
Y
o
u
n
g
S
o
o
L
i
m
,
B
a
e
G
u
n
P
a
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k
,
G
i
l
-
G
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u
n
L
e
e
임영수, 박배건, 이길근
Korean J. Met. Mater.
2022;60(6):463-470. Published online 2022 May 24
DOI:
https://doi.org/10.3365/KJMM.2022.60.6.463
Abstract
We present a study on the synthesis of Bi
2
Te
2.7
Se
0.3
powders through an oxide reduction process and also on the effect of the oxide reduction process on the thermoelectric transport properties of the resulting Bi
2
Te
2.7
Se
0.3
compounds. Starting materials of Bi
2
O
3
, TeO
2
and SeO
2
were mechanical milled for homogeneous mixing, and then.....
More
Web of Science 4
Crossref 6
S
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u
<
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b
>
3
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3
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/
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Korean J. Met. Mater.
2022;60(6):455-462. Published online 2022 May 24
DOI:
https://doi.org/10.3365/KJMM.2022.60.6.455
Abstract
Skinnerite Cu
3
SbS
3
, which consists of non-toxic and low-cost elements, is a potential thermoelectric material, however, studies on its thermoelectric properties are limited. In this study, the optimal conditions of mechanical alloying (MA) and hot pressing (HP) for the synthesis of the Cu
3
SbS
3
phase were investigated, and its thermoelectric properties were.....
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Web of Science 3
Crossref 4
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Korean J. Met. Mater.
2022;60(6):440-447. Published online 2022 May 24
DOI:
https://doi.org/10.3365/KJMM.2022.60.6.440
Abstract
Si-doped Cu
12
Sb
4-y
Si
y
S
13
(y = 0.1-0.4) compounds were prepared using solid-state synthesis. Each specimen consisted of a single tetrahedrite phase with a densely sintered body whose relative density exceeded 98.9%. The lattice constant decreased from 1.0357 nm to 1.0336 nm as the Si content increased. When the Si doping content (y).....
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Korean J. Met. Mater.
2022;60(5):384-390. Published online 2022 Apr 22
DOI:
https://doi.org/10.3365/KJMM.2022.60.5.384
Abstract
Cu-based ternary chalcogenides composed of earth-abundant and nontoxic elements are considered promising thermoelectric materials, although there are few reports on them. In our previous studies, optimal mechanical alloying (MA) and hot pressing (HP) were used to synthesize Cu
3
SbS
4
(famatinite) and Cu
3
SbSe
4
(permingeatite). In this study, solid solutions of Cu
3
SbS
4-y
Se
y
(y.....
More
Web of Science 1
Crossref 1
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Korean J. Met. Mater.
2022;60(5):376-383. Published online 2022 Apr 22
DOI:
https://doi.org/10.3365/KJMM.2022.60.5.376
Abstract
Ge-doped tetrahedrites Cu
12
Sb
4-y
Ge
y
S
13
(
y
= 0.1–0.4) were prepared using mechanical alloying and hot pressing. An X-ray diffraction analysis after mechanical alloying showed a single tetrahedrite phase without secondary phases. The tetrahedrite phase was stable after hot pressing at 723 K under 70 MPa. As the Ge content increased, the lattice.....
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FeSe
2
-FeTe
2
계 다결정 소재의 상 형성 거동 및 전기 전도 특성에 관한 연구
O
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박옥민, 김태완, 이세웅, 김현식, 신원호, , 김상일
Korean J. Met. Mater.
2022;60(4):315-320. Published online 2022 Mar 28
DOI:
https://doi.org/10.3365/KJMM.2022.60.4.315
Abstract
In this study, we investigated the phase formation behavior of the FeSe
2
-FeTe
2
system and the evolution of their thermoelectric transport properties. A series of Fe(Se
1-x
Te
x
)
2
(
x
= 0, 0.2, 0.6, 0.8 and 1) compounds were synthesized by conventional solid-state reaction. Single phase orthorhombic structures were formed, except for FeSe
0.4
Te
1.6
(
x
= 0.2)......
More
Web of Science 10
Crossref 8
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Ta 도핑된 Zr
0.6-x
Ti
0.4
Ta
x
NiSn n형 하프-호이슬러 소재의 열전특성
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주성재, 손지희, 장정인, 민복기, 김봉서
Korean J. Met. Mater.
2022;60(3):213-219. Published online 2022 Feb 8
DOI:
https://doi.org/10.3365/KJMM.2022.60.3.213
Abstract
Half-Heusler (HH) thermoelectric materials are promising for mid- to high-temperature applications, and
M
NiSn (
M
= Ti, Zr, Hf) is a representative n-type HH alloy. In general, the
M
sites are mixed with isoelectronic elements Ti, Zr, and Hf, to lower the lattice thermal conductivity, and the Sn sites are doped.....
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Web of Science 1
Crossref 1
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