900712

Sigma-Aldrich

石墨烯量子点

aqua green luminescent, 1 mg/mL in H2O

别名:
GQDs
CAS号:
NACRES:
NA.23

质量水平

100

描述

topographic height: 1-2.0 nm

形式

suspension

浓度

1 mg/mL in H2O

颜色

yellow

直径

<5 nm

荧光

λex 485 nm; λem 530 nm±10 nm, FWHM 80 nm, quantum yield ≥17%

InChI

1S/C

InChI key

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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一般描述

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

12 - Non Combustible Liquids

WGK Germany

nwg

闪点(F)

Not applicable

闪点(C)

Not applicable

分析证书

原产地证书 (CofO)

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...
技术文章
Properties, synthesis & applications of Graphene Quantum Dots explained. GQDs have advantages of nontoxicity, good solubility, stable photoluminescence & better surface grafting.
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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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Synthesis and Applications of Graphene Nanoribbons Synthesized
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相关内容
阐释了石墨烯量子点的属性、合成及应用。GQD具有无毒性、良好溶解性、稳定的光激发光以及更好的表面接枝属性等优势。
了解更多

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