Blue emission at atomically sharp 1D heterojunctions between graphene and h-BN
| Autor: | Jonghyuk Jeon, Gwangwoo Kim, Seokwoo Jeon, Yung-Chang Lin, Yuta Sato, Hyeon Suk Shin, Byeong-Hyeok Sohn, Kazu Suenaga, Minsu Kim, J.E. Barrios-Vargas, Jinouk Song, Stephan Roche, Seunghyup Yoo, Minsu Park, Kyung Yeol Ma |
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| Přispěvatelé: | National Research Foundation of Korea, Japan Society for the Promotion of Science, Ministry of Science, ICT and Future Planning (South Korea), European Commission, Generalitat de Catalunya, Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), Universidad Nacional Autónoma de México, Ministerio de Economía y Competitividad (España) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Science General Physics and Astronomy Physics::Optics Hexagonal boron nitride 02 engineering and technology Astrophysics::Cosmology and Extragalactic Astrophysics 010402 general chemistry Two-dimensional materials 7. Clean energy 01 natural sciences Article General Biochemistry Genetics and Molecular Biology law.invention Condensed Matter::Materials Science law Monolayer Physics::Atomic and Molecular Clusters Energy level Astrophysics::Solar and Stellar Astrophysics lcsh:Science Spin (physics) Multidisciplinary business.industry Graphene Heterojunction General Chemistry 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Blue emission 0104 chemical sciences Optical properties and devices Quantum dot Optoelectronics lcsh:Q 0210 nano-technology business |
| Zdroj: | Nature Communications, Vol 11, Iss 1, Pp 1-6 (2020) Dipòsit Digital de Documents de la UAB Universitat Autònoma de Barcelona Nature Communications Recercat: Dipósit de la Recerca de Catalunya Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) Digital.CSIC. Repositorio Institucional del CSIC instname Recercat. Dipósit de la Recerca de Catalunya |
| ISSN: | 2041-1723 |
| Popis: | Atomically sharp heterojunctions in lateral two-dimensional heterostructures can provide the narrowest one-dimensional functionalities driven by unusual interfacial electronic states. For instance, the highly controlled growth of patchworks of graphene and hexagonal boron nitride (h-BN) would be a potential platform to explore unknown electronic, thermal, spin or optoelectronic property. However, to date, the possible emergence of physical properties and functionalities monitored by the interfaces between metallic graphene and insulating h-BN remains largely unexplored. Here, we demonstrate a blue emitting atomic-resolved heterojunction between graphene and h-BN. Such emission is tentatively attributed to localized energy states formed at the disordered boundaries of h-BN and graphene. The weak blue emission at the heterojunctions in simple in-plane heterostructures of h-BN and graphene can be enhanced by increasing the density of the interface in graphene quantum dots array embedded in the h-BN monolayer. This work suggests that the narrowest, atomically resolved heterojunctions of in-plane two-dimensional heterostructures provides a future playground for optoelectronics. This work was supported by the research funds (NRF-2017R1E1A1A01074493 and NRF-2019R1A4A1027934) and the grant (CASE-2013M3A6A5073173) from the centre for Advanced Soft Electronics under the Global Frontier Research Program through the National Research Foundation by the Ministry of Science and ICT, Korea. H.S.S. and K.S. thank the A3 foresight program for their collaboration. Y.S., Y.-C.L. and K.S. acknowledge JSPS KAKENHI Grant Numbers JP19K05223, JP18K14119 and JP16H06333, respectively. S.R. acknowledges the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 881603 (Graphene Flagship). ICN2 is funded by the CERCA Programme/Generalitat de Catalunya, and is supported by the Severo Ochoa program from Spanish MINECO (Grant No. SEV-2017-0706). J.E.B.-V. acknowledges funding from PAIP Facultad de Química, UNAM (Grant No. 5000-9173). |
| Databáze: | OpenAIRE |
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