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  1. No Access

    Article

    Competing effects of Ca do** on the phase transition and related properties in (Ba1–xCax)(Ti0.95Sn0.05)O3 ceramics

    We present the competing effects of isovalent Ca do** into A-site on the properties of Ca-doped Ba(Ti,Sn)O3 ceramics. (Ba1–xCax)(Ti0.95Sn0.05)O3 (BCTS) ceramics with 0 ≤ x ≤ 0.06 were fabricated to investigate ...

    Young Soo Lim, Subramanian Sasikumar, Hae Won Lee… in Journal of the Korean Ceramic Society (2024)

  2. No Access

    Article

    Significantly enhanced charge transport in polysilicon by alleviating grain boundary scattering through interface control using reduced graphene oxide

    Here, we introduce interface control of polycrystalline silicon (poly-Si) using reduced graphene oxide (RGO) as a promising way to minimize the grain boundary scattering for the enhancement of the charge trans...

    Woo Hyun Nam, Ju Hyoung Sun, Hae Won Lee… in Journal of the Korean Ceramic Society (2022)

  3. No Access

    Article

    Charge-neutral defects control conductivity

    The generation of charge-neutral anti-Frenkel defects in a complex transition metal oxide provides a useful pathway for controlling electronic conductivity while minimizing the impact on existing functions.

    Ji Soo Lim, Chan-Ho Yang in Nature Materials (2020)

  4. No Access

    Article

    Thermoelectric Transport Properties of Interface-Controlled p-type Bismuth Antimony Telluride Composites by Reduced Graphene Oxide

    We report the thermoelectric transport properties of interface-controlled p-type bismuth antimony telluride (BST) composites using reduced graphene oxide (rGO). The composites were prepared by the spark plasma si...

    Ui Gyeong Hwang, Kyomin Kim, Woochul Kim, Weon Ho Shin… in Electronic Materials Letters (2019)

  5. No Access

    Article

    Effects of Cl-Do** on Thermoelectric Transport Properties of Cu2Se Prepared by Spark Plasma Sintering

    We present the thermoelectric transport properties of Cl-doped Cu2Se1−xClx (x = 0–0.08) compounds prepared by spark plasma sintering. Cl-do** resulted in a decrease in the electrical conductivity and an increas...

    Min Ji Kim, Gil-Geun Lee, Woochul Kim, Kyomin Kim… in Journal of Electronic Materials (2019)

  6. No Access

    Article

    Oxide Reduction Process for the Synthesis of p-Type BixSb2−xTe3 Compounds and Related Thermoelectric Transport Properties

    We propose the oxide reduction process for the fabrication of p-type BixSb2−xTe3 (x = 0, 0.14, 0.24, 0.32, 0.40 and 0.54) compounds. Using starting materials in oxide forms only (Bi2O3, Sb2O3, and TeO2), we could...

    Young Soo Lim, Chaeseon Lim, Gil-Geun Lee in Electronic Materials Letters (2019)

  7. No Access

    Chapter and Conference Paper

    Microstructural Characterization of Proton-Irradiated 316 Stainless Steels by Transmission Electron Microscopy and Atom Probe Tomography

    Proton irradiation is a well-known useful experimental technique to study neutron irradiation-induced phenomena in reactor core materials. Type 316 austenitic stainless steel was irradiated with 2 meV protons ...

    Yun Soo Lim, Dong ** Kim, Seong Sik Hwang in Proceedings of the 18th International Conf… (2019)

  8. No Access

    Article

    Influence of stacking order and intermediate phase at low temperature on Cu2ZnSnS4 thin film formation for solar cell

    A stacking order of a precursor is one of the important factors that affects the quality of Cu2ZnSnS4 (CZTS) thin film. Understanding of the intermediate phase formation and its reaction mechanism can contribute ...

    Kwang-Soo Lim, Seong-Man Yu, Ki-Bong Nam… in Journal of Materials Science: Materials in… (2018)

  9. Article

    Open Access

    Ultrafast collective oxygen-vacancy flow in Ca-doped BiFeO3

    The ultrafast motion of oxygen vacancies in solids is crucial for various future applications, such as oxide electrolytes. Visualization and quantification can offer unforeseen opportunities to probe the colle...

    Ji Soo Lim, ** Hong Lee, Heung-Sik Park, Ran Gao, Tae Yeong Koo… in NPG Asia Materials (2018)

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  10. No Access

    Article

    Microstructure and mechanical behavior of low-melting point Bi-Sn-In solder joints

    Ternary Bi-31.5Sn-25.0In solder has been proposed and studied for application in temperature-sensitive electronic components. In a Bi-31.5Sn- 25.0In solder joint, In was detected in an intermetallic compound (...

    Van Luong Nguyen, Sang Hoon Kim, Jae Won Jeong, Tae-Soo Lim… in Electronic Materials Letters (2017)

  11. No Access

    Article

    Effects of K-Do** on Thermoelectric Properties of Bi1−x K x CuOTe

    The effects of K-do** on the thermoelectric properties of Bi1−x K x CuOTe (x = 0 to 0.08) have been investigated. The compounds were synthesized by a on...

    Tae-Ho An, Young Soo Lim, Won-Seon Seo, Cheol-Hee Park… in Journal of Electronic Materials (2017)

  12. No Access

    Article

    Effect of the intermediate sulfide layer on the Cu2ZnSnS4-based solar cells

    Cu2ZnSnS4 (CZTS) thin-film solar cells were fabricated using Cu/Sn/Zn and Cu/SnS/Zn precursors. The precursors were prepared using a magnetron-sputtering system with subsequent annealing (sulfurization) in a sulf...

    Seong Man Yu, Kwang-Soo Lim, Dong-Wook Shin… in Journal of Materials Science: Materials in… (2017)

  13. No Access

    Article

    Optimization of Synthesis Conditions of Na0.75CoO2 for High Thermoelectric Performance

    Reproducibility of phase formation has been an important issue in tailoring electronic and thermal transport properties of Na x CoO2-based thermoelectric materials; however, opti...

    Jang-Yeul Tak, Kyu Hyoung Lee, Jong-Young Kim… in Journal of Electronic Materials (2015)

  14. No Access

    Article

    Preparation and Thermoelectric Properties of n-Type Bi2Te2.7Se0.3:D m

    Bismuth chalcogenides such as p-type (Bi,Sb)2Te3 and n-type Bi2(Te,Se)3 are excellent thermoelectric materials near room temperature. They can form homogeneous solid solutions because Bi2Te3, Sb2Te3, and Bi2Se3 h...

    Go-Eun Lee, A-Young Eum, Kwon-Min Song, Il-Ho Kim… in Journal of Electronic Materials (2015)

  15. No Access

    Article

    Parametric Study on the Tensile Properties of Ni-Based Alloy for a VHTR

    A very high-temperature reactor (VHTR) has been studied among generation IV nuclear power plants owing to its many advantages such as high-electric efficiency and massive hydrogen production. The material used...

    Dong-** Kim, Su ** Jung, Byung Hak Mun… in Metallurgical and Materials Transactions A (2015)

  16. No Access

    Article

    Effect of the dehydrogenation speed and Nd content on the microstructure and magnetic properties of HDDR processed Nd-Fe-B magnets

    The effect of Nd content and dehydrogenation speed on the microstructure and magnetic properties of hydrogenation-disproportionation-desorption-recombination (HDDR) processed Nd-Fe-B magnetic powders was studi...

    Hee-Ryoung Cha, Ji-Hun Yu, Youn-Kyoung Baek… in Metals and Materials International (2014)

  17. No Access

    Article

    Analysis of the small punch creep test results according to the normalized lifetime fraction

    The small punch creep test method was developed to complement the demerits of the existing uniaxial creep test method. A 10×10×0.5mm thin-plate specimen was used in the test, which could help save specimens an...

    Jong Hoon Lee, Sung Gook Oh, Jong Gu Lee, Moon Ki Kim… in Metals and Materials International (2014)

  18. No Access

    Article

    Synthesis and characterization of Sm(DBM)3Phen-and Nd(DBM)3Phen-doped polymethylmethacrylate for potential solar spectrum converter

    Sm(DBM)3Phen and Nd(DBM)3Phen were synthesized as stable rare-earth complexes in polymer matrix. Polymethylmethacrylate (PMMA) containing these complexes was highly transparent but exhibited emission peaks in the...

    Heungyeol Lee, Bogeum Yang, Mi-Yeon Yoo, Ki-Soo Lim… in Electronic Materials Letters (2014)

  19. No Access

    Article

    Preparation and Thermoelectric Properties of Doped Bi2Te3-Bi2Se3 Solid Solutions

    Since Bi2Te3 and Bi2Se3 have the same crystal structure, they form a homogeneous solid solution. Therefore, the thermal conductivity of the solid solution can be reduced by phonon scattering. The thermoelectric f...

    Go-Eun Lee, Il-Ho Kim, Young Soo Lim, Won-Seon Seo… in Journal of Electronic Materials (2014)

  20. No Access

    Article

    Deposition of Cu2ZnSnS4 thin films by magnetron sputtering and subsequent sulphurization

    Top-down magnetron sputtering with subsequent, separate sulphurization was used to deposit Cu2ZnSnS4 (CZTS) absorber layers for solar cells. Cu, ZnS and SnS targets were used to deposit the absorber layers onto s...

    Arun Khalkar, Kwang-Soo Lim, Seong-Man Yu… in Electronic Materials Letters (2014)

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