Optically Tunable Amino-Functionalized Graphene Quantum Dots

Optically Tunable Amino-Functionalized Graphene Quantum Dots

Amino‐functionalized graphene quantum dots (af‐GQDs) with discrete molecular weights and specific edges were self‐limitedly extracted from oxidized graphene sheet. Their optical properties can be precisely controlled only by the selective and quantitative functionalization at the edge sites. The af‐...

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Veröffentlicht in:Advanced materials (Weinheim) 2012-10, Vol.24 (39), p.5333-5338
Hauptverfasser: Tetsuka, Hiroyuki, Asahi, Ryoji, Nagoya, Akihiro, Okamoto, Kazuo, Tajima, Ichiro, Ohta, Riichiro, Okamoto, Atsuto
Format: Artikel
Sprache:eng
Schlagworte:
Amines - chemistry
Excitation
Fluorescence
Graphene
Graphite - chemistry
Materials selection
Models, Molecular
Molecular Conformation
Molecular weight
Nanotechnology - methods
Optical Phenomena
Optical properties
Quantum Dots
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Beschreibung
Zusammenfassung:Amino‐functionalized graphene quantum dots (af‐GQDs) with discrete molecular weights and specific edges were self‐limitedly extracted from oxidized graphene sheet. Their optical properties can be precisely controlled only by the selective and quantitative functionalization at the edge sites. The af‐GQDS exhibit bright colorful fluorescence under a single‐wavelength excitation.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201201930