ZnCdSeS alloyed Quantum Dots

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Product Details:

Poisonous Yes
Molecular Formula Zn_xCd_{1-x}Se_yS_{1-y}
Form Colloidal solution or powder
Ph Level Neutral to slightly basic (dependent on dispersion medium)
HS Code 28273990
Other Names Alloyed ZnCdSeS QDs, multicolor quantum dots
Smell Odorless
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ZnCdSeS alloyed Quantum Dots Product Specifications

Usage Fluorescent probe, optoelectronics, bio-labeling
EINECS No Not assigned for nanomaterials
Shape Spherical nanoparticles
Molecular Weight Variable, depends on composition and particle size
CAS No None assigned (mixture of nanomaterials)
Structural Formula Nanocrystalline alloy structure
Standard Custom synthesized, meets analytical/research grade specs
Refractive Rate 1.92.6 (dependent on composition and wavelength)
Purity >95% (typically as nanocrystals)
Solubility Dispersible in water and polar solvents due to hydrophilic surface ligands
Storage Store at 28C away from light in airtight container
Application Biological imaging, sensing, LEDs, display technology, solar cells
Density 5.9 Gram per cubic centimeter(g/cm3)
Type Alloyed Quantum Dots
Classification Inorganic nanocrystal
HS Code 28273990
Ph Level Neutral to slightly basic (dependent on dispersion medium)
Form Colloidal solution or powder
Poisonous Yes
Grade Nanomaterial, research/analytical grade
Molecular Formula Zn_xCd_{1-x}Se_yS_{1-y}
Smell Odorless
Chemical Name ZnCdSeS alloyed Quantum Dots
Other Names Alloyed ZnCdSeS QDs, multicolor quantum dots
Melting Point Not applicable (nanomaterial, decomposes before melting)
Boiling point Not available / nanomaterial evaporates or decomposes
Main Material Zinc Cadmium Selenide Sulfide (ZnCdSeS) alloyed nanocrystals

Certificate of Analysis Available upon request (includes spectral and sizing data)
Bandgap Energy Adjustable between 1.82.8 eV depending on composition
Dispersibility Stable in polar solvents, aqueous & some organic media
Optical Properties Strong photoluminescence stability, high color purity
Shelf Life 1224 months under recommended storage
Customization Emission wavelength and surface chemistry customizable for applications
Cytotoxicity Low when surface-modified, but inherent risk due to Cd
Surface Capping Ligands Hydrophilic or hydrophobic organic molecules (options: carboxyl, amine, PEG)
Packing Supplied in sealed vials or ampoules (liquid/powder)
Hazard Information Proper handling required, avoid exposure and inhalation
Particle Size 210 nm (size-tunable emission)
Quantum Yield Up to 60% (depends on synthesis and surface passivation)
Emission Color Tunable (blue to red), narrow emission spectrum

ZnCdSeS alloyed Quantum Dots Trade Information

Payment Terms Cash in Advance (CID), Cheque, Cash Advance (CA)
Main Domestic Market All India

Product Description

ZnCdSeS alloyed Quantum Dots

Product	ZnCdSeS alloyed Quantum Dots
Linear Formula	ZnCdSeS
Stock No.	NCZQD105-19
Form	Liquid/Powder
Fluorescence	540 nm (customization available)
Concentration	5 mg/mL (customization available)
Storage Temperature	2-8 C

Customizable Optical Properties

ZnCdSeS Quantum Dots offer adjustable emission across the visible spectrum, enabling precise application in LEDs, bio-labeling, or imaging. The emission wavelength and surface chemistry can be tailored to meet specific research or industrial needs, yielding high color purity and strong fluorescence stability for demanding environments.

Surface Modification Versatility

Quantum dots can be capped with organic ligands such as carboxyl, amine, or PEG, providing options for hydrophilic or hydrophobic surfaces. This flexibility ensures compatibility with aqueous solutions, polar solvents, and select organic media, enhancing their application in biological and optoelectronic systems.

Safe Handling and Storage Guidelines

Due to their cadmium content, ZnCdSeS Quantum Dots require careful handling and storage at 28C in airtight containers away from light. Following recommended safety protocols minimizes risk while preserving shelf life (1224 months) and maintaining optimal photophysical properties.

FAQs of ZnCdSeS alloyed Quantum Dots:

Q: How are ZnCdSeS alloyed Quantum Dots tailored for specific emission wavelengths?

A: The emission wavelength of ZnCdSeS Quantum Dots is controlled by adjusting their composition (ratios of Zn, Cd, Se, and S) and particle size during synthesis, enabling customizable fluorescence from blue to red for various applications.

Q: What safety precautions should be taken when handling these quantum dots?

A: Proper handling is essential due to the inherent toxicity of cadmium. Use personal protective equipment (gloves, masks), work in a well-ventilated environment, and store the material in airtight containers at 28C away from light to avoid exposure and degradation.

Q: When can I request a Certificate of Analysis for these quantum dots?

A: A Certificate of Analysis, detailing spectral characteristics and particle sizing data, is available upon request with each purchase, supporting quality assurance and regulatory compliance for research and analytical applications.

Q: Where can ZnCdSeS alloyed Quantum Dots be dispersed for use?

A: These quantum dots disperse readily in water, polar solvents, and certain organic media when capped with hydrophilic surface ligands, making them suitable for biological, chemical, and optoelectronic environments.

Q: What process is used to enhance the stability and quantum yield of the quantum dots?

A: Stability and quantum yield are optimized by fine-tuning the synthesis parameters and surface passivation with organic ligands, which protect the quantum dot surface and reduce non-radiative recombination, yielding stronger fluorescence.

Q: How do customized surface ligands benefit quantum dot applications?

A: Custom surface ligands, such as carboxyl or PEG groups, improve compatibility with various media, reduce cytotoxicity, and enhance dispersibility, allowing quantum dots to be adapted for specific uses such as bio-labeling, probes, and sensing systems.

Q: What are the main benefits of using ZnCdSeS alloyed Quantum Dots in research and industry?

A: The primary advantages include tunable, narrow emission with high color purity, strong photoluminescence, versatile dispersibility, and the ability to modify surface chemistry for targeted applications like imaging, display technology, and solar cells.

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