Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Shi-Joon Sung"'
Autor:
Dae‐Ho Son, Ha Kyung Park, Dae‐Hwan Kim, Jin‐Kyu Kang, Shi‐Joon Sung, Dae‐Kue Hwang, Jaebaek Lee, Dong‐Hwan Jeon, Yunae Cho, William Jo, Taeseon Lee, JunHo Kim, Sang‐Hoon Nam, Kee‐Jeong Yang
Publikováno v:
Carbon Energy, Vol 6, Iss 3, Pp n/a-n/a (2024)
Abstract Cu2ZnSn(S,Se)4 (CZTSSe) solar cells have resource distribution and economic advantages. The main cause of their low efficiency is carrier loss resulting from recombination of photo‐generated electron and hole. To overcome this, it is impor
Externí odkaz:
https://doaj.org/article/617b7d46d6b5421f94ccc56c71e4b1b9
Autor:
Van-Quy Hoang, Dong-Hwan Jeon, Seong-Yeon Kim, Jaebaek Lee, Dae-Ho Son, Kee-Jeong Yang, Jin-Kyu Kang, Shi-Joon Sung, Dae-Kue Hwang, Dae-Hwan Kim
Publikováno v:
Journal of Science: Advanced Materials and Devices, Vol 9, Iss 1, Pp 100665- (2024)
The bandgap widening of Ag-alloyed Cu(In,Ga)Se2 (ACIGS) thin films poses a significant challenge in enhancing their photocurrent. This study demonstrates correlations between element diffusion behavior and notch-point formation in ACIGS films, which
Externí odkaz:
https://doaj.org/article/b5ad1ad9827f4708ba44bb3ff3901073
Autor:
Dong-Hwan Jeon, Si-Nae Park, Jae-Baek Lee, Young-Ill Kim, Kee-Jeong Yang, Jin-Kyu Kang, Dae-Hwan Kim, Shi-Joon Sung, Dae-Kue Hwang
Publikováno v:
Journal of Science: Advanced Materials and Devices, Vol 9, Iss 1, Pp 100648- (2024)
A fabrication technique using Al2O3-passivated local contacts was employed to produce narrow-bandgap CuInSe2 (CISe) photoabsorbers, which are well-suited as bottom cell materials in tandem devices. However, the performances of CISe cells with narrow
Externí odkaz:
https://doaj.org/article/52ded78605d54ea48cb80bd12f20f333
Autor:
Dae‐Ho Son, Dong‐Hwan Jeon, Dae‐Hwan Kim, Jin‐Kyu Kang, Shi‐Joon Sung, Jaebaek Lee, Taeseon Lee, Enkhjargal Enkhbayar, JunHo Kim, Kee‐Jeong Yang
Publikováno v:
Carbon Energy, Vol 5, Iss 8, Pp n/a-n/a (2023)
Abstract Understanding the defect characteristics that occur near the space‐charge regions (SCRs) of kesterite (CZTSSe) solar cells is important because the recombination loss at the CZTSSe/CdS interface is considered the main cause of their low ef
Externí odkaz:
https://doaj.org/article/2b90e44645494cc2bbb2e065b7f4e8d2
Autor:
Kee-Jeong Yang, Sammi Kim, Se-Yun Kim, Kwangseok Ahn, Dae-Ho Son, Seung-Hyun Kim, Sang-Ju Lee, Young-Ill Kim, Si-Nae Park, Shi-Joon Sung, Dae-Hwan Kim, Temujin Enkhbat, JunHo Kim, Chan-Wook Jeon, Jin-Kyu Kang
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
Flexibility and homogeneity are preferred properties for the kesterite solar modules to compete with silicon counterparts. Here, Yang et al. achieve these properties by designing a thin and multi-layered precursor structure and at the same time incre
Externí odkaz:
https://doaj.org/article/083d18098e014856bf0756572ad5627b
Publikováno v:
Materials & Design, Vol 201, Iss , Pp 109454- (2021)
Efforts to enhance the solar conversion efficiency have prevailed for decades. There is a growing interest in improving the spectral response of solar modules, especially in harvesting UV photons, which offer intense energy in a narrow wavelength ran
Externí odkaz:
https://doaj.org/article/e419c921c35e4d239e67fd2a45ed271f
Autor:
Jaebaek Lee, Dong-Hwan Jeon, Dae-Kue Hwang, Kee-Jeong Yang, Jin-Kyu Kang, Shi-Joon Sung, Hyunwoong Park, Dae-Hwan Kim
Publikováno v:
Nanomaterials, Vol 11, Iss 11, p 2779 (2021)
The efficiency of thin-film chalcogenide solar cells is dependent on their window layer thickness. However, the application of an ultrathin window layer is difficult because of the limited capability of the deposition process. This paper reports the
Externí odkaz:
https://doaj.org/article/56f9d62b23b94b9a98f11815770416ad
Design of Grating Al2O3 Passivation Structure Optimized for High-Efficiency Cu(In,Ga)Se2 Solar Cells
Publikováno v:
Sensors, Vol 21, Iss 14, p 4849 (2021)
In this paper, we propose an optimized structure of thin Cu(In,Ga)Se2 (CIGS) solar cells with a grating aluminum oxide (Al2O3) passivation layer (GAPL) providing nano-sized contact openings in order to improve power conversion efficiency using optoel
Externí odkaz:
https://doaj.org/article/739f78d3bd6a4948b85867ea712e8880
Autor:
Si-Nae Park, Se-Yun Kim, Sang-Ju Lee, Shi-Joon Sung, Kee-Jeong Yang, Jin-Kyu Kang, Dae-Hwan Kim
Publikováno v:
Materials Advances. 3:978-985
A Sb2Se3 nanorod array was uniformly grown by co-evaporation on a MoSe2 interlayer. MoSe2 interlayer improves the preferential growth and contact quality of Sb2Se3 nanorods.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::474efa1bd68f104be139b19de0a59cb5
https://doi.org/10.1039/d1ma00804h
https://doi.org/10.1039/d1ma00804h
Autor:
Hye Kyeong Sung, Yeonju Lee, Wook Hyun Kim, Sang-Ju Lee, Shi-Joon Sung, Dae-Hwan Kim, Yoon Soo Han
Publikováno v:
Molecules, Vol 25, Iss 7, p 1502 (2020)
By simple soaking titanium dioxide (TiO2) films in an aqueous Na2S solution, we could prepare surface-modified photoanodes for application to dye-sensitized solar cells (DSSCs). An improvement in both the open-circuit voltage (Voc) and the fill facto
Externí odkaz:
https://doaj.org/article/62c95ec23221495aa52543cbe1d142b9