Pular para o conteúdo
Merck
Todas as fotos(2)

Documentos Principais

900708

Sigma-Aldrich

Graphene quantum dots

blue luminescent, 1 mg/mL in H2O

Sinônimo(s):

GQD

Faça loginpara ver os preços organizacionais e de contrato
Todas as fotos(2)

About This Item

Número CAS:
7440-44-0
Código UNSPSC:
12352200

descrição

topographic height: 1-2.0 nm

Formulário

suspension

concentração

1 mg/mL in H2O

cor

colorless

diâmetro

<5 nm

fluorescência

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

InChI

1S/C

chave InChI

OKTJSMMVPCPJKN-UHFFFAOYSA-N

Procurando produtos similares? Visita Guia de comparação de produtos

Descrição geral

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.

Código de classe de armazenamento

12 - Non Combustible Liquids

Classe de risco de água (WGK)

nwg

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
MKCR2226
MKCQ2322
MKCN8390
MKCM2748
MKCK8189

Não está vendo a versão correta?

Se precisar de uma versão específica, você pode procurar um certificado específico pelo número do lote ou da remessa.

Pesquise por COA

Já possui este produto?

Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.

Visite a Biblioteca de Documentos

Os clientes também visualizaram

Slide 1 of 1

1 of 1

Perovskite quantum dots oleic acid and oleylamine coated, fluorescence &#955;em&#160;530&#160;nm, 10&#160;mg/mL in toluene

Sigma-Aldrich

905062

Perovskite quantum dots

Cristina Stefanov et al.
Mikrochimica acta, 187(11), 611-611 (2020-10-17)
A gold nanoparticle/graphene quantum dots (AuNP/GQD) nanozyme-modified screen-printed carbon electrode (SPCE) was developed for fast and ultrasensitive determination of quercetin by square-wave voltammetry. The nanosensing device was inserted in miniaturized equipment. Under the optimal experimental conditions, a good linear relationship between
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)

Artigos

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.

Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.

Entre em contato com a assistência técnica