Zinc sulfide

Zinc Sulfide Powder Overview 

Zinc sulfide is a high-purity II-VI group wide-bandgap compound semiconductor powder with the chemical formula ZnS. The product appears as a white or pale yellow fine crystalline powder with a wide direct bandgap of approximately 3.54–3.91 eV, making it an outstanding direct-bandgap semiconductor. It combines excellent optical properties, highly efficient photoluminescence characteristics, good chemical stability, and piezoelectric properties, serving as a core foundational material in infrared optics, fluorescent materials, and advanced functional ceramics.

We offer high-quality zinc sulfide powder with multiple options for purity, crystal phase, particle size, and surface treatment. Contact us for samples.

Product Highlights

Wide direct bandgap semiconductor
Excellent infrared transmission properties
High-efficiency photoluminescence and fluorescence characteristics
Good chemical and thermal stability
Multiple crystal phases and particle sizes available
Multiple packaging options available

Applications of Zinc Sulfide Powder

Infrared Optical Materials: Serves as the primary raw material for hot-press sintering to produce high-performance infrared windows, lenses, and missile fairings.
Light-Emitting and Display Materials: Functions as a matrix material, doped with Ag, Cu, Mn, etc., to prepare long-afterglow phosphors, electroluminescent materials, and LED phosphors.
Functional Ceramics and Coatings: Used to produce transparent ceramics, wear-resistant and corrosion-resistant coatings, and specialty structural ceramics for harsh environments.
Catalysts and Additives: Serves as a photocatalyst for degrading organic pollutants or as a functional filler in composite materials like plastics and rubber.

FAQs

Q1: How to choose between cubic and hexagonal phases?
A1: Depends on the application. The cubic phase (sphalerite) is more common in optical and luminescent materials; the hexagonal phase (wurtzite) may offer advantages in certain catalytic and piezoelectric applications.

Q2: How should powder purity be selected?
A2: Infrared optics and high-end fluorescent materials typically require 99.99% (4N) purity or higher; some additive or catalyst applications can use 99.9% (3N) grade.

Q3: How should the product be stored?
A3: Store in sealed containers, protected from light and moisture. Although chemically stable, prolonged exposure may cause slow oxidation, affecting performance.

Q4: What are the characteristics of ZnS powder compared to other infrared materials?
A4: Its core features include a broad infrared transmission band, high hardness, and lower cost. With excellent overall performance, it is a classic window material for mid-infrared applications.

Report

Each batch is supplied with:
Certificate of Analysis (COA)
Technical Data Sheet (TDS)
Material Safety Data Sheet (MSDS)
Third-party testing reports available upon request

Why Choose Us？

We lead in high-end sulfide materials technology, offering a full range of high-performance zinc sulfide powders and customized solutions—from fundamental research to large-scale production.