900712
Graphene quantum dots
aqua green luminescent, 1 mg/mL in H2O
Synonym(s):
GQDs
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About This Item
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description
topographic height: 1-2.0 nm
form
suspension
concentration
1 mg/mL in H2O
color
colorless
diameter
<5 nm
fluorescence
λex 485 nm; λem 530 nm±10 nm FWHM 80 nm, quantum yield ≥17%
InChI
1S/C
InChI key
OKTJSMMVPCPJKN-UHFFFAOYSA-N
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General description
Graphene quantum dots (GQDs), sheets of few-layered graphene and lateral dimensions smaller than 100 nm, possess strong quantum confinement and edge effects. Thus, they possess unique physical properties such as strong photoluminescence, which can be tailored for specific applications by controlling their size, shape, defects, and functionality. In contrast to classic QDs, such as metal or silicon quantum dots, GQDs are biocompatible, photo-stable, and inherit superior thermal, electrical, and mechanical properties from the graphene. These features can greatly contribute to various state-of-the-art applications:
- Optical brighteners.
- Taggants for security application.
- Bio-imaging markers.
- Fluorescent polymers.
- Antibacterial, antibiofouling, disinfection systems.
- Heavy metals, humidity and pressure sensors.
- Batteries.
- Flash memory devices.
- Photovoltaic devices.
- Light-emitting diodes.
Storage Class Code
12 - Non Combustible Liquids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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An electrochemical avenue to green-luminescent graphene quantum dots as potential electron-acceptors for photovoltaics.
Advanced materials (Deerfield Beach, Fla.), 23(6), 776-780 (2011-02-03)
Chemical communications (Cambridge, England), 48(31), 3686-3699 (2012-03-14)
Similar to the popular older cousins, luminescent carbon dots (C-dots), graphene quantum dots or graphene quantum discs (GQDs) have generated enormous excitement because of their superiority in chemical inertness, biocompatibility and low toxicity. Besides, GQDs, consisting of a single atomic
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