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Few Layers WS2 Dispersion with LiOH, 1mg/mL, water, 200mL
Product Type: 2D material 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 advantage of using LiOH as a stabilizer in this few-layer WS2 dispersion?
LiOH stabilizer maintains the dispersion pH between 8 and 9, creating a basic environment that helps prevent aggregation of the few-layer WS2 sheets in water. This pH range is critical for preserving the colloidal stability and single-layer ratio (>90%) of the dispersion.
What is the single-layer ratio of this WS2 dispersion and why is it important?
The single-layer ratio is >90%, meaning the majority of the dispersion consists of single-layer WS2 sheets. This high ratio is essential for applications requiring maximum surface area and consistent electronic or optical properties, as few-layer and multi-layer species can degrade performance.
What handling considerations are needed for the pH 8–9 aqueous WS2 dispersion?
The dispersion has a pH of 8–9, indicating a slightly basic aqueous solution. Standard laboratory safety practices for handling basic solutions apply, including using gloves and eye protection. The water-based solvent and LiOH stabilizer mean the dispersion should be stored in a sealed container at room temperature to avoid evaporation and pH drift.
This few-layer WS2 dispersion in water with LiOH stabilizer at 1 mg/mL concentration and >90% single-layer ratio is suitable for solution-processed 2D material applications requiring an alkaline aqueous medium. The fixed concentration and solvent composition impose constraints on direct use in non-aqueous or high-concentration protocols.
Positive
- High single-layer ratio >90%: The dispersion exhibits a single-layer ratio exceeding 90%, ensuring consistent monolayer properties for research requiring uniform 2D material characteristics.
- Stable pH range with LiOH stabilizer: The pH is maintained between 8-9 using LiOH as a stabilizer, which helps prevent aggregation and supports long-term dispersion stability in aqueous systems.
Trade-offs
- Fixed concentration at 1 mg/mL: The product is supplied only at 1 mg/mL concentration, requiring users to dilute or concentrate the dispersion for experiments needing different mass loadings, which may affect stability.
- Water solvent limits solvent compatibility: The dispersion uses water as the solvent, restricting direct use in hydrophobic or organic-solvent-based processes and necessitating additional drying or solvent exchange steps.
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).
