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Surface Plasmon Enhanced Nitrogen‐Doped Graphene Quantum Dot Emission by Single Bismuth Telluride Nanoplates
Author(s) -
Saleem Umar,
Permatasari Fitri A.,
Iskandar Ferry,
Ogi Takashi,
Okuyama Kikuo,
Darma Yudi,
Zhao Meng,
Loh Kian Ping,
Rusydi Andrivo,
Coquet Philippe,
Birowosuto Muhammad Danang,
Wang Hong
Publication year - 2017
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201700176
Subject(s) - materials science , graphene , plasmon , quantum dot , optoelectronics , bismuth telluride , surface plasmon , doping , nanotechnology , thermal conductivity , thermoelectric materials , composite material
The light–matter interaction between nitrogen‐doped graphene quantum dots (N‐GQDs) and bismuth telluride (Bi 2 Te 3 ) nanoplates is investigated. A maximum of (2.9 ± 0.3)‐fold emission rate enhancement is observed at room temperature due to the coupling of N‐GQD emission with the breathing mode of surface plasmon of single Bi 2 Te 3 nanoplates. The enhancement varies with different emission wavelengths and nanoplate diameters in accordance with results obtained through the dipole radiation power in the electromagnetic simulations. From experiment, the quantum yield of N‐GQDs is obtained to be almost unity, while Bi 2 Te 3 nanoplates may replace the conventional antenna. Such combination of novel active and plasmonic materials is promising for efficient lighting applications with multiple functionalities, especially tunable plasmonic metamaterial based on topological insulators.