Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Kee-Jeong Yang"'
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:
Ha Kyung Park, Yunae Cho, Juran Kim, Sammi Kim, Sungjun Kim, Jeha Kim, Kee-Jeong Yang, Dae-Hwan Kim, Jin-Kyu Kang, William Jo
Publikováno v:
npj Flexible Electronics, Vol 6, Iss 1, Pp 1-8 (2022)
Abstract Understanding the stress-induced phenomena is essential for improving the long-term application of flexible solar cells to non-flat surfaces. Here, we investigated the electronic band structure and carrier transport mechanism of Cu2ZnSn(S,Se
Externí odkaz:
https://doaj.org/article/6fec6811344d4eedb44d346e061da78e
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
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
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:
Sanghun Hong, Se-Yun Kim, Dae-Ho Son, Seung-Hyun Kim, Young-Ill Kim, Kee-Jeong Yang, Young-Woo Heo, Jin-Kyu Kang, Dae-Hwan Kim
Publikováno v:
Nanomaterials, Vol 10, Iss 1, p 43 (2019)
When CZTSSe is synthesized using a metal precursor, large voids of nonuniform size form at Mo back contact side. Herein, we demonstrate that the voids and CZTSSe in the lower part of the CZTSSe double layer can be controlled by using an Al2O3-pattern
Externí odkaz:
https://doaj.org/article/41587319419141c2a2994d4aaf3279f9
Autor:
Se-Yun Kim, Seung-Hyun Kim, Dae-Ho Son, Hyesun Yoo, Seongyeon Kim, Sammi Kim, Young-Ill Kim, Si-Nae Park, Dong-Hwan Jeon, Jaebaek Lee, Hyo-Jeong Jo, Shi-Joon Sung, Dae-Kue Hwang, Kee-Jeong Yang, Dae-Hwan Kim, Jin-Kyu Kang
Publikováno v:
ACS applied materialsinterfaces. 14(27)
In this study, we investigated the effect of the stacking order of metal precursors on the formation of volume defects, such as blisters and nanopores, in CZTSSe thin-film solar cells. We fabricated CZTSSe thin films using three types of metal-precur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c952b7561699b2f9f784dd85dce15d6
https://pubmed.ncbi.nlm.nih.gov/35708228
https://pubmed.ncbi.nlm.nih.gov/35708228