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Plasmonics: Hybrid Graphene–Giant Nanocrystal Quantum Dot Assemblies with Highly Efficient Biexciton Emission (Advanced Optical Materials 1/2015)
Author(s) -
Gao Yongqian,
Roslyak Oleksiy,
Dervishi Enkeleda,
Karan Niladri S.,
Ghosh Yagnaseni,
Sheehan Chris J.,
Wang Feng,
Gupta Gautam,
Mohite Aditya,
Dattelbaum Andrew M.,
Doorn Stephen K.,
Hollingsworth Jennifer A.,
Piryatinski Andrei,
Htoon Han
Publication year - 2015
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.201570002
Subject(s) - materials science , lasing threshold , quantum dot , nanocrystal , graphene , plasmon , amplified spontaneous emission , optoelectronics , exciton , spontaneous emission , biexciton , excited state , photon , nanotechnology , laser , condensed matter physics , atomic physics , optics , physics , wavelength
When giant nanocrystal quantum dots (g‐NQDs) are coupled to graphene, pairs of excitons optically excited in the g‐NQDs experience efficient recombination and subsequent simultaneous emission of photon pairs. This enhancement is provided by a localized plasmon supported by a charge puddle that forms underneath the photocharged g‐NQD. On page 39, H. Htoon and co‐workers reveal the tremendous potential of graphene‐g‐NQD hybrids for lasing and entangled photon source applications.