Carbon Quantum Dots (CQDs), 590–620 nm, Ethanol

Description

Carbon Quantum Dots (CQDs), 590–620 nm, Ethanol

Carbon Quantum Dots (CQDs) emitting in the 590–620 nm orange range are advanced nanomaterials with tunable optical properties, eco-friendly composition, and excellent biocompatibility. Their emission arises from sp² carbon domains decorated with carboxyl, hydroxyl, and amino functional groups, which provide strong fluorescence, water dispersibility, and chemical conjugation capability. Synthesized through green hydrothermal or microwave processes, CQDs are highly photostable, exhibit low cytotoxicity, and deliver quantum yields exceeding 30% with doping or surface passivation.

Product Overview

Nanographenex offers high-purity Carbon Quantum Dots (CQDs) with controlled particle size (<15 nm), spherical morphology, and bright orange emission. With ethanol as the solvent, our CQDs are stable, dispersible, and optimized for research and industrial applications in optoelectronics, biomedical imaging, sensing, and agricultural lighting. Their eco-friendly nature and scalable production make them a sustainable alternative to heavy-metal-based quantum dots.

Technical Properties

• Diameter: <15 nm

• Morphology: Spherical

• Emission Wavelength Range: 590–620 nm (Orange)

• Color: Orange

• Solvent: Ethanol

Standard Analyses Provided:

• Excitation and Emission wavelength with PL Spectrophotometer

Optional Extra Analyses (on request):

• Particle Size Distribution

• Quantum Yield

• Fluorescence Lifetime

  

  

Applications

• Biomedical Applications:
  CQDs are widely used in bioimaging, biosensing, and drug delivery, offering low cytotoxicity, excellent solubility, and pH-dependent fluorescence for real-time cellular diagnostics.

• Optoelectronics & Displays:
  Their orange emission is ideal for OLEDs, micro-LEDs, and warm-color LEDs, serving as efficient down-conversion materials with high stability and broad excitation.

• Sensing Technologies:
  CQDs enable chemical and biological detection of heavy metals, biomolecules, and pollutants due to their fluorescence response, supporting rapid and accurate sensing platforms.

• Agriculture & Plant Growth:
  Emission in the photosynthetically active radiation (PAR) range makes them valuable in plant-growth lighting systems. They are also being developed for controlled-release fertilizers and smart agricultural sensors.

• Environmental & Energy Applications:
  CQDs contribute to photocatalysis, pollutant degradation, and water treatment while also enhancing performance in solar cells and energy-harvesting devices.