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Key Documents

900708

Sigma-Aldrich

Graphene quantum dots

blue luminescent, 1 mg/mL in H2O

Synonyme(s) :

GQD

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About This Item

Numéro CAS:
7440-44-0
Code UNSPSC :
12352200

Description

topographic height: 1-2.0 nm

Forme

suspension

Concentration

1 mg/mL in H2O

Couleur

colorless

Diamètre

<5 nm

Fluorescence

λex 350 nm; λem 445 nm FWHM 65 nm, quantum yield >65%

InChI

1S/C

Clé InChI

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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Description générale

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.

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
MKCQ2322
MKCN8390
MKCM2748
MKCK8189
MKCJ5813

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