This product is not offered as a percent solution. The concentration is 1 mg/mL. The density of this preparation is 1.008 g/mL. To convert the unit to ppm, 1 mg/mL / 1.008 g/mL = 0.000992 mg/mg = 992 ppm. The FWHM and ex/em wavelength are listed on the product detail page as below:
λex: 485 nm
λem: 530 nm ±10 nm
FWHM: 80 nm
900712
Graphene quantum dots
aqua green luminescent, 1 mg/mL in H2O
Synonym(s):
GQDs
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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%
SMILES string
[C]
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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Jianhua Shen et al.
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
An electrochemical avenue to green-luminescent graphene quantum dots as potential electron-acceptors for photovoltaics.
Yan Li et al.
Advanced materials (Deerfield Beach, Fla.), 23(6), 776-780 (2011-02-03)
Articles
Properties, synthesis & applications of Graphene Quantum Dots explained. GQDs have advantages of nontoxicity, good solubility, stable photoluminescence & better surface grafting.
Graphene nanoribbons (GNRs) are quasi-one-dimensional narrow strips of graphene comprised of sp2-hybridized carbon atoms arranged into hexagonal honeycomb lattice configurations.
Graphene nanoribbons (GNRs) are quasi-one-dimensional narrow strips of graphene comprised of sp2-hybridized carbon atoms arranged into hexagonal honeycomb lattice configurations.
Graphene nanoribbons (GNRs) are quasi-one-dimensional narrow strips of graphene comprised of sp2-hybridized carbon atoms arranged into hexagonal honeycomb lattice configurations.
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Hi I am interested in the graphene dots for toxicity study but i am wondering if you could clarify the concentration of >0.005% in H2O part. Does that mean >50ppm? is it possible to provide me the exact concentration in ppm (and FWHM, ex/em)? thanks!
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