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Single Layer WS2 Quantum Dots Dispersion, <10nm, water, 500mL
Product Type: Quantum dot dispersion
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For material selection, specification confirmation and quotation preparation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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What is the exact concentration and particle size of the single-layer WS2 quantum dots in this dispersion?
The dispersion has a concentration of 0.5 mg/mL and a particle size of <10 nm, as specified in the technical specifications. These values are critical for confirming quantum confinement effects and suitability for optoelectronic or photocatalytic studies.
What stabilizer is used in this WS2 quantum dot dispersion and what is the pH?
The dispersion uses LiOH as a stabilizer and has a pH of 8–9. This alkaline pH and the LiOH stabilizer are important for maintaining colloidal stability in water and may influence compatibility with biological or pH-sensitive experimental systems.
Are these WS2 quantum dots truly single-layer, and what does the size specification indicate?
Yes, the product is explicitly labeled as single-layer WS2 quantum dots. The size specification of <10 nm is consistent with quantum dots derived from exfoliated single-layer WS2, providing the characteristic quantum confinement expected for this material form.
This Single Layer WS2 Quantum Dots Dispersion provides sub-10 nm particle size in aqueous suspension at 0.5 mg/mL concentration, stabilized with LiOH at pH 8-9, suitable for solution-processed optoelectronic or photocatalytic studies requiring monodisperse transition metal dichalcogenide quantum dots.
Positive
- Sub-10 nm particle size: The <10 nm diameter ensures quantum confinement effects characteristic of WS2 quantum dots, enabling size-dependent bandgap tuning for photoluminescence and charge-transfer applications.
- Aqueous dispersion with pH control: Water-based solvent with LiOH stabilizer maintains pH 8-9, providing colloidal stability and compatibility with biological or aqueous-phase processing without organic solvent interference.
Trade-offs
- Low mass concentration: At 0.5 mg/mL, the dispersion requires larger volumes or concentration steps for applications needing higher quantum dot loading, adding handling time and potential aggregation risk during concentration.
- Alkaline pH constraint: The pH 8-9 range limits direct mixing with acidic or pH-sensitive reagents without buffer exchange or neutralization, which may alter colloidal stability or quench fluorescence.
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).
