Description

Zinc Sulfide (ZnS), Cobalt and Copper-Doped is a high-performance inorganic phosphor material engineered for advanced optical applications. This doped compound is valued for its ability to emit specific wavelengths of light under excitation, making it a critical component in specialized luminescent devices. It is primarily sought by manufacturers in the electronics, security, and specialty pigment industries for its tunable emission properties and stability.

Application

• Electroluminescent (EL) Displays: Used as a key phosphor in thin-film electroluminescent panels for instrumentation and specialty displays.
• Persistent Luminescence Materials: Employed in the formulation of long-lasting afterglow pigments for safety signage, emergency path marking, and novelty items.
• Optical Sensors: Serves as a sensing layer in devices that detect specific types of radiation or light due to its doped semiconductor properties.
• Infrared (IR) Windows & Optics: Utilized in coatings and components for infrared transmission applications, benefiting from Zinc Sulfide's broad transmission range.
• Anti-Counterfeiting Inks: A vital ingredient in security inks for banknotes, documents, and high-value products, where its specific luminescence provides a covert authentication feature.
• Photocatalysts: Investigated for use in advanced photocatalytic processes under visible light, leveraging the doped metal ions to modify bandgap energy.

Basic Information

Product Name	Zinc Sulfide (ZnS), Cobalt and Copper-Doped
CAS No.	72869-37-5
Molecular Formula	ZnS (doped with Co & Cu)
Molecular Weight	~97.46 g/mol (base ZnS)
Synonyms	Cobalt-Copper Activated Zinc Sulfide; Doped Zinc Sulfide Phosphor; ZnS:Co,Cu; Luminescent Zinc Sulfide; Copper and Cobalt Doped Zinc Sulphide; Afterglow Phosphor; Zinc Sulphide Doped; Persistent Luminescence Material
EINECS	Contact for details

Quality Control

Our doped Zinc Sulfide is produced under strict quality control protocols to ensure batch-to-batch consistency in luminescent performance and chemical purity. Each lot is characterized for critical parameters including dopant concentration, particle size distribution, phase purity (by XRD), and luminescence intensity/decay time. A Certificate of Analysis (COA) detailing these specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids and organic solvents. The material is moisture-sensitive; ensure containers are sealed after use to prevent degradation.

Specification

Item	Specification
Appearance	Fine, homogeneous powder
Color	Off-white to pale gray
Identification (XRD)	Matches Zinc Blende/Sphalerite structure
Assay (ZnS basis)	≥ 99.0%
Dopant Concentration (Co)	10 - 200 ppm
Dopant Concentration (Cu)	10 - 200 ppm
Particle Size (D50)	1 - 20 µm (customizable)
Afterglow Brightness (10 min)	≥ 20 mcd/m² (Grade dependent)
Loss on Drying	≤ 0.5 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.