Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Yong‐Duck Chung"'
Autor:
Woo‐Jung Lee, Tae‐Ha Hwang, Dae‐Hyung Cho, Kwangsik Jeong, Soyoung Lim, Rina Kim, Yong‐Duck Chung
Publikováno v:
Advanced Electronic Materials, Vol 10, Iss 7, Pp n/a-n/a (2024)
Abstract This work reports the formation of a heterojunction composed of Tl2Ba2CaCu2O8 (Tl‐2212) and Bi2Se3 as the high critical temperature superconductor and topological insulator, respectively. The Bi2Se3 film is deposited on the Tl‐2212 by a
Externí odkaz:
https://doaj.org/article/6bdf4a18456b4a3c8b3ca7acfe91b730
Autor:
Woo-Jung Lee, Dae-Hyung Cho, Myeong Eon Kim, Kwangsik Jeong, Tae-Ha Hwang, Woo-Ju Kim, Yong-Duck Chung
Publikováno v:
Applied Surface Science Advances, Vol 19, Iss , Pp 100539- (2024)
This study investigates the use of an alkaline earth metal precursor (MgF2) to enhance the performance of chalcogenide-based Cu(In,Ga)Se2 (CIGS) solar cells with a chemically bath deposited-Zn(O,S) (CBD-Zn(O,S)) buffer layer via post-deposited treatm
Externí odkaz:
https://doaj.org/article/b5ec45a5d1a14d22be623af11f3a7001
Autor:
Chul Kang, Gyuseok Lee, Woo-Jung Lee, Dae-Hyung Cho, Inhee Maeng, Yong-Duck Chung, Chul-Sik Kee
Publikováno v:
Crystals, Vol 11, Iss 4, p 411 (2021)
We investigated THz emission from Ar-ion-implanted Cu(In,Ga)Se2 (CIGS) films. THz radiation from the CIGS films increases as the density of implanted Ar ions increases. This is because Ar ions contribute to an increase in the surface surge current de
Externí odkaz:
https://doaj.org/article/dda913dd17974d2eb697cf8968c170d1
Implementation of various colors in Cu(In,Ga)Se2 thin-film solar cells by diffractive nanostructures
Autor:
Woo-Ju Kim, Dae-Hyung Cho, Sung-Hoon Hong, Woo-Jung Lee, Tae-Ha Hwang, Joo Yeon Kim, Yong-Duck Chung
Publikováno v:
Solar Energy Materials and Solar Cells. 257:112392
Autor:
Woo-Ju Kim, Dae-Hyung Cho, Sung-Hoon Hong, Woo-Jung Lee, Tae Ha Hwang, Joo Yeon Kim, Yong-Duck Chung
Publikováno v:
SSRN Electronic Journal.
Autor:
Jong Hun Yu, Woo Ju Kim, Woo-Jung Lee, Jae-Hyung Wi, Dae-Hyung Cho, Yong-Duck Chung, Chul Kang, Seong Jun Kang
Publikováno v:
ACS Applied Materials & Interfaces. 13:48611-48621
We carried out KF postdeposition treatment (PDT) on a Cu(In,Ga)Se2 (CIGS) layer with a process time varying from 50 to 200 s. The highest CIGS solar-cell efficiency was achieved at a KF PDT process time of 50 s; in this condition, we observed the hig
Autor:
Dae-Hyung Cho, Woo-Jung Lee, Chul-Sik Kee, Chul Kang, NoSoung Myoung, Gyuseok Lee, Yong-Duck Chung
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 11:175-182
We investigated the effects of H+ ion irradiation on a chalcogenide Cu(In,Ga)Se2 (CIGS) thin film as a function of the dose concentration (1014 ∼ 1016/cm2) at 200 keV by using time-resolved THz spectroscopy. The optical conductivity of these films
Publikováno v:
Ceramist. 23:389-406
Publikováno v:
Progress in Photovoltaics: Research and Applications. 28:798-807
Autor:
Trang Thi Thu Nguyen, Maeng-Je Seong, Gee Yeong Kim, Yoon Koo Kim, Yong-Duck Chung, Seokhyun Yoon, Miyoung Kim, William Jo, Seung Yong Lee, Je-Ho Lee, Dae-Hyung Cho, Juran Kim
Publikováno v:
Physical Chemistry Chemical Physics. 22:7597-7605
The long stagnation of the photo-conversion efficiency of kesterites below 13% is a source of frustration in the scientific community. In this study, we investigated the effects of sodium on the passivation of grain boundaries and defects in Cu2ZnSnS