Cd S, 3 mg/mL, 10 mLProduct Type: Quantum dot material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, material format, solvent, concentration or configuration confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
How does the emission bandwidth and peak position of CdS quantum dots at 3 mg/mL vary with excitation wavelength across the 365–420 nm range?
The specified emission window (580–600 nm) is independent of the excitation wavelength within the 365–420 nm range, as CdS quantum dots exhibit size-dependent, not excitation-dependent, photoluminescence. The product description confirms excitation of 365–420 nm yields emission at 580–600 nm, consistent with band-edge recombination of a fixed nanocrystal size distribution. No data for full width at half maximum or quantum yield is provided, so any trade-off in brightness or spectral purity cannot be inferred from the source.
Can this CdS quantum dot formulation at 3 mg/mL be directly injected into n-heptane or cyclohexane without aggregation or precipitation?
The solvent is explicitly listed as water/toluene, and the specification field lists n-heptane/cyclohexane as a separate parameter—likely indicating alternative miscibility targets or ligand chemistry, not the dispersion solvent. Transferring this 3 mg/mL CdS quantum dot solution into n-heptane or cyclohexane directly would risk aggregation unless the surface ligands are compatible with non-polar alkanes. The source does not provide ligand identity or stability data in alkanes, so users must confirm compatibility with the manufacturer before mixing.
What safety and storage infrastructure is required for a 10 mL aqueous/toluene dispersion of CdS quantum dots at 3 mg/mL?
Storage and handling recommendations are not provided in the source, but the presence of toluene as a solvent (a flammable, toxic, and volatile organic compound) necessitates use in a fume hood with proper ventilation, sealed inert containers, and protection from light and oxygen. CdS quantum dots are also susceptible to photo-oxidation and should be stored at 2–8 °C away from direct UV exposure. Confirmation of ligand shell stability and solvent evaporation rate should be obtained from Atomfair before long-term storage.
This CdS quantum dot material at 3 mg/mL in a 10 mL package offers a narrow emission band (580-600 nm) under UV excitation (365-420 nm), suitable for fluorescence-based assays or optoelectronic prototyping, but requires careful solvent selection and handling due to dual solvent compatibility (water, toluene) and the presence of n-heptane/cyclohexane in the specification.
Positive
- Narrow emission band for optical applications: Emission at 580-600 nm with excitation at 365-420 nm provides a well-defined fluorescence signal, enabling precise spectral matching in imaging or sensor integration.
- Dual solvent compatibility for workflow flexibility: Solvent options include water and toluene, allowing integration into both aqueous and organic-phase preparation protocols without additional solvent exchange steps.
Trade-offs
- Solvent handling and stability constraints: The product is supplied in water or toluene, but the specification includes n-heptane and cyclohexane, indicating potential solvent variability that requires careful storage and handling to avoid evaporation or contamination.
- Limited concentration and volume for scale-up: At 3 mg/mL and 10 mL total volume, the total mass is 30 mg, which may be insufficient for high-throughput screening or bulk material synthesis without multiple units.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
