Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Jang-Yeul Tak"'
Autor:
Changhoon Lee, Jae Nyeong Kim, Jang-Yeul Tak, Hyung Koun Cho, Ji Hoon Shim, Young Soo Lim, Myung-Hwan Whangbo
Publikováno v:
AIP Advances, Vol 8, Iss 11, Pp 115213-115213-8 (2018)
The electronic and thermoelectric properties of Bi2Te3, PbBi2Te4 and PbBi4Te7 were examined on the basis of density functional theory (DFT) calculations and thermoelectric transport property measurements. The layered phase PbBi4Te7 is composed of the
Externí odkaz:
https://doaj.org/article/3dde0e415c3d49269df9d36a020c232a
Autor:
Tae-Ho An, Young Soo Lim, Mi Jin Park, Jang-Yeul Tak, Soonil Lee, Hyung Koun Cho, Jun-Young Cho, Chan Park, Won-Seon Seo
Publikováno v:
APL Materials, Vol 4, Iss 10, Pp 104812-104812-7 (2016)
Composition-dependent charge transport and temperature-dependent density of state effective mass-dependent Seebeck coefficient were investigated in Bi2−xSbxTe3 (x = 1.56-1.68) compounds. The compounds were prepared by the spark plasma sintering of
Externí odkaz:
https://doaj.org/article/d2cde5ea418b4b1c8b7d992e2327d748
Autor:
Jung Young Cho, Weon Ho Shin, Won Seon Seo, Jang-Yeul Tak, Nayoung Lee, Walter Commerell, Sungwook Ye, Jong Wook Roh, Rahman Jamil Ur, Woo Hyun Nam
Publikováno v:
Korean Journal of Metals and Materials. 59:829-837
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 t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc46a859fd72751ff792516b1d7ed593
https://doi.org/10.3365/kjmm.2021.59.11.829
https://doi.org/10.3365/kjmm.2021.59.11.829
Autor:
Jang-Yeul Tak, Gil-Geun Lee, Young Soo Lim, Jung Young Cho, Seung Hyun Jin, Woo Hyun Nam, Hyung Koun Cho, Won-Seon Seo
Publikováno v:
Journal of the European Ceramic Society. 41:459-465
β-Cu2Se has attracted much attention due to its high thermoelectric performances at high temperatures. However, the fast migration of Cu ions at elevated temperatures, which stems from its intrinsic liquid-like behavior, causes chemical instability
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cfdbf8af9f0a0bb338f4ed0dbef17bf
https://doi.org/10.1016/j.jeurceramsoc.2020.08.023
https://doi.org/10.1016/j.jeurceramsoc.2020.08.023
Autor:
Junphil Hwang, Young Soo Lim, Dong Keon Lee, Yingshi Jin, Woochul Kim, Jisook Hong, Hwanjoo Park, Sung Jin Kim, Ji Hoon Shim, Je-Hyeong Bahk, Mi Kyung Han, Jiyong Kim, Jang-Yeul Tak, Hoon Kim
Publikováno v:
ACS Nano. 13:8347-8355
In thermoelectric energy conversions, thermal conductivity reduction is essential for enhancing thermoelectric performance while maintaining a high power factor. Herein, we propose an approach based on coated-grain structures to effectively reduce th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::291fd4aac526bdbfe7729e3f1e3b695d
https://doi.org/10.1021/acsnano.9b03805
https://doi.org/10.1021/acsnano.9b03805
Publikováno v:
Scripta Materialia. 210:114416
An alternative oxide anode material to surpass Ni electrode in the solid oxide fuel cell (SOFC) technology, used at high temperature range (500–1000 °C), is needed for the SOFC industry. We investigated an advanced perovskite oxide electrode, CaVx
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08ba1589a1c94b94a653cc4cd70ef6d4
https://doi.org/10.1016/j.scriptamat.2021.114416
https://doi.org/10.1016/j.scriptamat.2021.114416
Autor:
Gil Geun Lee, Woochul Kim, Min Ji Kim, Kyomin Kim, Won Seon Seo, Jang-Yeul Tak, Weon Ho Shin, Jisang Hong, Young Soo Lim
Publikováno v:
Journal of Electronic Materials. 48:1958-1964
We present the thermoelectric transport properties of Cl-doped Cu2Se1−xClx (x = 0–0.08) compounds prepared by spark plasma sintering. Cl-doping resulted in a decrease in the electrical conductivity and an increase in the Seebeck coefficient of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f738bc70eaa97742f124cc8b8cd92a2
https://doi.org/10.1007/s11664-018-6708-5
https://doi.org/10.1007/s11664-018-6708-5
Autor:
Young Soo Lim, Jang-Yeul Tak
Publikováno v:
Korean Journal of Metals and Materials. 56:532-537
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d93fdf352524b70e3089ef4b81bdda67
https://doi.org/10.3365/kjmm.2018.56.7.532
https://doi.org/10.3365/kjmm.2018.56.7.532
Autor:
Hyung Koun Cho, Ji Hoon Shim, Jang-Yeul Tak, Cheol-Hee Park, Woo Hyun Nam, Young Soo Lim, Sujee Kim, Changhoon Lee, Soonil Lee, Won-Seon Seo, Kyung-Moon Ko
Publikováno v:
Chemistry of Materials. 30:3276-3284
Finding alternatives for Bi2Te3, the only thermoelectric material for near-room-temperature (RT) applications, is of great importance in thermoelectrics. Here, we report a very promising near-RT th...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f572c1fe24b785cee40f89e2a8e552b
https://doi.org/10.1021/acs.chemmater.8b00254
https://doi.org/10.1021/acs.chemmater.8b00254
Autor:
Soonil Lee, Myong-Ho Kim, Jang-Yeul Tak, Hyeon Jin Lee, Jiyoun Kim, Yoon Hee Jang, Jamil Ur Rahman, Dae Sung Kim, Nguyen Van Du, Hyun-Ki Yoon, Hae-Won Cheong
Publikováno v:
Ceramics International. 44:5359-5364
This paper reports a novel synthesis of iron (Fe) powders in which high-purity and controlled primary and secondary assembled particles can be produced at low cost with safe process. Iron hydroxide powder precursors with fine-sized and acicular morph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::763e06458f5394dffbaed5bd80a8302d
https://doi.org/10.1016/j.ceramint.2017.12.156
https://doi.org/10.1016/j.ceramint.2017.12.156