Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김영훈 | - |
dc.date.accessioned | 2022-10-20T00:04:25Z | - |
dc.date.available | 2022-10-20T00:04:25Z | - |
dc.date.issued | 2021-01 | - |
dc.identifier.citation | Small Science, v. 1, no. 2, article no. 2000042 | en_US |
dc.identifier.issn | 2688-4046; 0084-9812 | en_US |
dc.identifier.uri | https://onlinelibrary.wiley.com/doi/10.1002/smsc.202000042 | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/175584 | - |
dc.description.abstract | Carbon nitrides (C3N4) show excellent properties in various optical and optoelectronic applications. However, their application to electroluminescence (EL) devices is limited by the lack of production methods of homogeneous dispersions in organic solvents, which are critically required for device fabrication. Herein, a strategy to generate stable dispersions of fluorescent, 2D C3N4 materials, and demonstrate light-emitting diodes (LEDs) based on them is proposed. The treatment of urea-driven C3N4 (UCN) with methoxy-benzene diazonium salt (MD) produces dispersions in organic solvents. Experimental and theoretical studies suggest that MD treatment passivates the surface defects of the UCN. The resulting LED devices show bright green luminescence with an external quantum efficiency of 0.91%. This unprecedented result opens an era of C3N4 emitters as future promising light emitters in displays and solid-state lighting. | en_US |
dc.description.sponsorship | S.H.P. and Y.-H.K. contributed equally to this work. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (grant nos. 2018R1A2B2003996 and NRF-2016R1A3B1908431). The authors thank the Busan Center at the Korea Basic Science Institute (KBSI) for XPS analysis. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Wiley - V C H Verlag GmbbH & Co. | en_US |
dc.subject | carbon nitrides; density functional theory simulations; diazonium salts; light-emitting diodes; two-dimensional materials | en_US |
dc.title | Production of C, N Alternating 2D Materials Using Covalent Modification and Their Electroluminescence Performance | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1002/smsc.202000042 | en_US |
dc.relation.journal | Small | - |
dc.contributor.googleauthor | Park, Sunghee | - |
dc.contributor.googleauthor | Kim, Young-Hoon | - |
dc.contributor.googleauthor | Kang, Sungwoo | - |
dc.contributor.googleauthor | Lim, Donggyu | - |
dc.contributor.googleauthor | Park, Jinwoo | - |
dc.contributor.googleauthor | Jang, Dawoon | - |
dc.contributor.googleauthor | Choi, Seungjoo | - |
dc.contributor.googleauthor | Kim, Jeongho | - |
dc.contributor.googleauthor | Han, Seungwu | - |
dc.contributor.googleauthor | Lee, Tae-Woo | - |
dc.relation.code | 2021035059 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | younghoonkim | - |
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