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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 Kim
이준하, 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

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 (κ1) have hindered its application in devices. Recently, Bi doping at Sn-sites in Sn1-xBixTe (x = 0.0 – 0.08) has been demonstrated..... More

The Mechanism Behind the High zT of SnSe2 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

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

Study of Phase Formation Behavior and Electronic Transport Properties in the FeSe2 -FeTe2 System
FeSe2-FeTe2 계 다결정 소재의 상 형성 거동 및 전기 전도 특성에 관한 연구
Okmin Park, TaeWan Kim, Se Woong Lee, Hyun-Sik Kim, Weon Ho Shin, Jamil Ur Rahman, Sang-il Kim
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

In this study, we investigated the phase formation behavior of the FeSe2-FeTe2 system and the evolution of their thermoelectric transport properties. A series of Fe(Se1-xTex)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 FeSe0.4Te1.6(x = 0.2)...... More

                   Web of Science 10  Crossref 8
Method for Predicting Thermoelectric Module Efficiency Using MATLAB/Simulink
매트랩/시뮬링크 simulation model을 이용한 열전 모듈의 효율 예측
Nayoung Lee, Sungwook Ye, Rahman Jamil Ur, Jang-Yeul Tak, Jung Young Cho, Won Seon Seo, Weon Ho Shin, Walter Commerell, Woo Hyun Nam, Jong Wook Roh
이나영, 예성욱, Rahman Jamil Ur, 탁장렬, 조중영, 서원선, 신원호, Walter Commerell, 남우현, 노종욱
Korean J. Met. Mater. 2021;59(11):829-837.   Published online 2021 Oct 28
DOI: https://doi.org/10.3365/KJMM.2021.59.11.829

Development new high-performance thermoelectric materials for more efficient power generation systems and eco-friendly refrigerating systems has been challenging. Over the past few decades, thermoelectric studies have been focused on increasing the thermoelectric properties of materials. However, for conventional applications, developing of thermoelectric devices or modules with lower cost and..... More

                   Crossref 1
Enhanced Energy-Transfer Properties in Core-Shell Photoluminescent Nanoparticles Using Mesoporous SiO2 Intermediate Layers
에너지-전이 형광 특성 향상을 위한 다공성 실리카 중간층이 추가된 코어-쉘 나노입자 제조 및 특성평가
Woo Hyeong Sim, Seyun Kim, Weon Ho Shin, Hyung Mo Jeong
심우형, 김세윤, 신원호, 정형모
Korean J. Met. Mater. 2020;58(2):137-144.   Published online 2020 Jan 8
DOI: https://doi.org/10.3365/KJMM.2020.58.2.137

Multi-layer core-shell nanoparticles (YVO4:Nd3+/mSiO2/SiO2) consisting of silica cores (SiO2), mesoporous silica (mSiO2) intermediate layers, and Neodymium doped rare-earth phosphor (YVO4:Nd3+) shell layers were successfully synthesized using the stepwise sol-gel method. The morphological structure and optical properties of the functional core-shell nanoparticles were characterized and evaluated by transmission electron microscopy (TEM),..... More

                   Web of Science 3  Crossref 2
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