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900560

Sigma-Aldrich

Graphene quantum dots

>0.005% in H2O

Synonym(s):

GQDs

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About This Item

CAS Number:
7440-44-0
UNSPSC Code:
11101522
NACRES:
NA.23

form

liquid

Quality Level

100

concentration

>0.005% in H2O

fluorescence

, quantum yield >50%

InChI

1S/C

InChI key

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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General description

Graphene quantum dots (GQDs) have the potential to be applied towards next generation electronics and energy applications. Graphene itself does not possess band gap energy and its usage is limited. However, when their size becomes as small as quantum dots, they exhibit photoluminescence in the ultraviolet, visible, and near infrared ranges. The size of graphene quantum dots ranges approximately 1-4 nm. Due to their quantum confinement effect, GQDs can be applied to photovoltaic devices such as solar cells, bio imaging (cancer cell imaging, protein analysis, cell tracking), various type of sensors, etc.

Application

  • Bio-imaging.
  • Photocatalysis.
  • LED.
  • Energy conversion.
  • Sensing.

WGK

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Regulatory Information

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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.

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