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Cadmium Sulphide Quantum Dots

Cadmium Sulphide Quantum Dots

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Product Details:

  • Density 4.82 Gram per cubic centimeter(g/cm3)
  • Structural Formula CdS
  • Molecular Formula CdS
  • Ph Level Neutral (when dispersed in neutral solvents)
  • Solubility Insoluble in water; slightly soluble in acids such as HCl, H2SO4, and hot nitric acid
  • Purity >99%
  • Refractive Rate 2.529
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Cadmium Sulphide Quantum Dots Product Specifications

  • 2827.39
  • Nanoparticles/Quantum Dots
  • 215-147-8
  • 1750C
  • Cadmium Sulphide (CdS)
  • Cadmium Yellow Quantum Dots; CdS QDs
  • Yes
  • CdS
  • Neutral (when dispersed in neutral solvents)
  • Insoluble in water; slightly soluble in acids such as HCl, H2SO4, and hot nitric acid
  • >99%
  • 2.529
  • 4.82 Gram per cubic centimeter(g/cm3)
  • CdS
  • 1306-23-6
  • Cadmium Sulphide Quantum Dots
  • Meets international research grade nanoparticle standards
  • Research/Laboratory Grade
  • 144.48 g/mol
  • Store in a cool, dry place away from sunlight and strong acids
  • Not applicable (Decomposes before boiling)
  • Used as semiconductors, in quantum dot displays, and in photovoltaic devices
  • Odourless
  • II-VI Semiconductor Compound
  • Bio-imaging, Solar Cells, Photodetectors, Fluorescent Probes, Optoelectronic Devices
  • Spherical (typical for quantum dots)
  • Colloidal Solution or Powder
  • No (contains cadmium, lead-free alternative not applicable)
  • Typically 2085% depending on synthesis method
  • 1224 months in properly sealed containers
  • Tunable, varies from blue to red depending on particle size
  • 2-10 nm depending on synthesis conditions
  • Stable under inert atmosphere; degrades under strong light or oxidizing conditions
  • Hexagonal (wurtzite) or cubic (zinc blende), typically wurtzite for nanoparticles
  • Oleic acid or similar capping agents
  • Yellow to orange colloidal solution or dry powder

Cadmium Sulphide Quantum Dots Trade Information

  • All India

Product Description

With enriched industrial experience and knowledge, we are providing an excellent range of Cadmium Sulphide Quantum Dots. Owing to their quality characteristics, these products are widely demanded in numerous industries. These products are processed using the best chemical compounds and advanced technology at vendors end. In adding up to this, these Cadmium Sulphide Quantum Dots are checked under the management of quality organizers, in order to make certain their high quality. Purity, accurate composition and unmatched quality are features of the offered product.



Tunable Optical Properties

Cadmium Sulphide Quantum Dots offer emission wavelengths that can be precisely tuned by controlling particle size during synthesis, spanning blue to red light. This makes them exceptionally versatile for research in photonics and display technologies, as well as advanced imaging applications.


Surface Chemistry and Stability

The surfaces of these quantum dots are often capped with oleic acid or similar molecules, enhancing stability and dispersibility in suitable solvents. While stable in inert atmospheres, CdS QDs degrade on exposure to strong light, air, or oxidizing environments, so careful handling and storage are recommended.


Applications and Benefits

CdS Quantum Dots play a vital role in cutting-edge fields like bio-imaging, photovoltaic devices, and quantum dot displays. Their high quantum yield and research-grade purity make them valuable for sensitive scientific experiments and commercial optoelectronic device development.

FAQs of Cadmium Sulphide Quantum Dots:


Q: How should Cadmium Sulphide Quantum Dots be stored for maximum shelf life?

A: To maximize shelf life (1224 months), Cadmium Sulphide Quantum Dots should be stored in tightly sealed containers, in a cool, dry place, away from sunlight and strong acids, and ideally under an inert atmosphere to prevent degradation.

Q: What determines the emission color of CdS Quantum Dots?

A: The emission color of CdS Quantum Dots depends on the particle sizesmaller dots emit blue light, while larger dots shift towards red. This tunability is a result of quantum size effects related to their nanometric dimensions.

Q: When are CdS Quantum Dots typically used in research or industry?

A: CdS Quantum Dots are used when precise light emission, high quantum yield, or nanoscale semiconductor properties are required, such as in bio-imaging, solar cell research, quantum dot displays, and photodetector fabrication.

Q: Where are CdS Quantum Dots applicable in optoelectronic devices?

A: CdS Quantum Dots are incorporated in optoelectronic devices such as light-emitting diodes (LEDs), quantum dot displays, solar cells, and photodetectors, where they enhance device performance due to their unique optical and electronic properties.

Q: What is the benefit of using oleic acid as a surface ligand for CdS Quantum Dots?

A: Oleic acid acts as a capping agent that improves the stability, dispersibility, and prevents aggregation of CdS Quantum Dots, ensuring consistent optical properties and longer shelf life.

Q: How toxic are Cadmium Sulphide Quantum Dots and what precautions should be taken?

A: CdS Quantum Dots are toxic due to the presence of cadmium; appropriate safety measures include handling with gloves, working under fume hoods, and avoiding ingestion or inhalation. They are not lead-free, so disposal should follow hazardous chemical protocols.

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