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Key Documents

900713

Sigma-Aldrich

Graphene quantum dots

aqua green luminescent, powder

Synonym(s):

GQDs

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50 MG
CN¥1,350.08

CN¥1,350.08

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50 MG
CN¥1,350.08

About This Item

CAS Number:
7440-44-0
EC Number:
231-153-3
MDL number:
MFCD00133992
UNSPSC Code:
11101522
NACRES:
NA.23

CN¥1,350.08

Please contact Customer Service for Availability
Request a Bulk Order

Quality Level

100

description

topographic height: 1–2.0 nm

form

powder

diameter

<5 nm

fluorescence

λex 485 nm; λem 525 nm FWHM 70 nm, quantum yield >17%

SMILES string

[C]

InChI

1S/C

InChI key

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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Graphene quantum dots aqua green luminescent, powder

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Graphene quantum dots aqua green luminescent, 1&#160;mg/mL in H2O

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Graphene quantum dots blue luminescent, 1&#160;mg/mL in H2O

900708

Graphene quantum dots

diameter

<5 nm

diameter

-

diameter

<5 nm

diameter

<5 nm

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

-

form

powder

form

powder

form

suspension

form

suspension

description

topographic height: 1–2.0 nm

description

topographic height: 1-2.0 nm

description

topographic height: 1-2.0 nm

description

topographic height: 1-2.0 nm

Application

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.
  • Bioimaging 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

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCM3276
    MKCK9995
    MKCJ5814
    MKCG5889
    MKCD4576

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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

    Graphene Quantum Dots: Properties, Synthesis & Applications

    Properties, synthesis & applications of Graphene Quantum Dots explained. GQDs have advantages of nontoxicity, good solubility, stable photoluminescence & better surface grafting.

    Synthesis and Applications of Graphene Nanoribbons Synthesized

    Graphene nanoribbons (GNRs) are quasi-one-dimensional narrow strips of graphene comprised of sp2-hybridized carbon atoms arranged into hexagonal honeycomb lattice configurations.

    Perovskite Quantum Dots Synthesis

    Perovskite quantum dots research progresses overcoming challenges, enabling rapid development of light-emitting devices.

    Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

    Contact Technical Service