900726

Sigma-Aldrich

Graphene quantum dots

blue luminescent, powder

Sinónimos:
GQDs
Número de CAS:
Número de EC:

Nivel de calidad

100

descripción

topographic height: 1-2.0 nm

formulario

powder

color

brown

tamaño de partícula

<5 nm

fluorescencia

λex 350 nm; λem 445 nm±10 nm, FWHM 75 nm, quantum yield ≥20%

InChI

1S/C

InChI key

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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Categorías relacionadas

Aplicación

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

13 - Non Combustible Solids

WGK Alemania

nwg

Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Certificado de Análisis

Certificado de origen

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)
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...
Artículos
Properties, synthesis & applications of Graphene Quantum Dots explained. GQDs have advantages of nontoxicity, good solubility, stable photoluminescence & better surface grafting.
Más información
Synthesis and Applications of Graphene Nanoribbons Synthesized
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Colloidal quantum dots (QDs) are solution-processable luminescent materials that can produce high-quality color in light emitting diodes (LEDs).
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