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The Mechanism Behind the High zT of SnSe<sub>2</sub> Added SnSe at High Temperatures
SnSe2 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 Kim
김준수, 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..... More

                   Web of Science 1
Enhancement of thermoelectric power factor by modulation doping of bulk polycrystalline SnS / thin film PEDOT:PSS bilayer
벌크 다결정 SnS / PEDOT:PSS 박막 이중층에서의 변조 도핑을 통한 열전 역률 강화
Dongwook Lee
이동욱
Korean J. Met. Mater. 2022;60(7):531-536.   Published online 2022 Jun 3
DOI: https://doi.org/10.3365/KJMM.2022.60.7.531

Abstract
Modulation doping occurs in a heterojunction where a charge carrier-rich material transfers charge to a carrier-deficient material. The modulation-doped material is intentionally selected to have higher charge carrier mobility than the modulation dopant material, so that the overall electrical conductivity can be boosted. Although this modulation doping strategy has proven..... More

                   Web of Science 4  Crossref 3
Calculated Electric Transport Properties of Thermoelectric Semiconductors Under Different Carrier Scattering Mechanisms
캐리어 산란 메커니즘에 따른 열전반도체의 이론 전자수송 특성 변화
Sang-il Kim, Hyun-Sik Kim
김상일, 김현식
Korean J. Met. Mater. ;59(2):127-134.   Published online 2021 Jan 27
DOI: https://doi.org/10.3365/KJMM.2021.59.2.127

Abstract
The widespread application of thermoelectric devices in cooling and waste heat recovery systems will be achieved when materials achieve high thermoelectric performance. However, improving thermoelectric performance is not straightforward because the Seebeck coefficient and electrical conductivity of the materials have opposite trends with varying carrier concentration. Here, we demonstrate that..... More

                   Web of Science 10  Crossref 9
Impact of Fermi Surface Shape Engineering on Calculated Electronic Transport Properties of Bi-Sb-Te
페르미 면 형상제어에 따른 Bi-Sb-Te 이론 전자수송 특성 변화
Sang-il Kim, Jong-Chan Lim, Heesun Yang, Hyun-Sik Kim
김상일, 임종찬, 양희선, 김현식
Korean J. Met. Mater. 2021;59(1):54-60.   Published online 2021 Jan 5
DOI: https://doi.org/10.3365/KJMM.2021.59.1.54

Abstract
Using thermoelectric refrigerators can address climate change because they do not utilize harmful greenhouse gases as refrigerants. To compete with current vapor compression cycle refrigerators, the thermoelectric performance of materials needs to be improved. However, improving thermoelectric performance is challenging because of the trade-off relationship between the Seebeck coefficient and..... More

                   Web of Science 7  Crossref 6
Effects of Sb on the Charge Transport and Power Factor of Bi<sub>2-x</sub>Sb<sub>x</sub>Te<sub>3</sub> Thermoelectric Compounds Prepared by Hot Pressing
열간 압축 방법으로 제작된 Bi2-xSbxTe3 열전소재 복합체에서 Sb 함량이 전하수송과 출력인자에 미치는 효과
Young Soo Lim, Soonil Lee
임영수, 이순일
Korean J. Met. Mater. 2017;55(9):651-656.   Published online 2017 Aug 30
DOI: https://doi.org/10.3365/KJMM.2017.55.9.651

Abstract
We report the effects of Sb content on the charge transport and power factor of Bi2-xSbxTe3(1.56 ≤χ≤ 1.74) compounds prepared by hot pressing. From the temperature-dependence of the electrical conductivity, it was found that the charge transport in the compounds was predominantly governed by acoustic phonon scattering, and additionally affected..... More

       Crossref 3
Effects of Cu-doping on the Power Factor of Bi<sub>0.42</sub>Sb<sub>1.58</sub>Te<sub>3</sub> Thermoelectric Compounds Prepared by Hot Pressing
열간 압축 방법으로 제작된 Bi0.42Sb1.58Te3 열전소재 복합체에서 Cu 도핑이 출력인자에 미치는 효과에 대한 연구
Young Soo Lim, Minseok Song, Soonil Lee, Won-Seon Seo
임영수, 송민석, 이순일, 서원선
Korean J. Met. Mater. 2017;55(6):427-431.   Published online 2017 Jun 1
DOI: https://doi.org/10.3365/KJMM.2017.55.6.427

Abstract
We report the effects of incorporated Cu on the thermoelectric transport properties of Bi0.42Sb1.58Te3 compounds prepared by the hot pressing method. The hole concentration in the compound increased significantly with the increase in the Cu content. The acceptor role of Cu was manifested by Hall measurements and also by the..... More

       Crossref 4
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