Description

Copper Gallium Selenide is a ternary semiconductor compound with the chemical formula CuGaSe₂. This material is of significant commercial and research interest due to its excellent photovoltaic properties and tunable bandgap, making it a key component in advanced thin-film solar cell technologies. It is primarily utilized by manufacturers and R&D laboratories in the renewable energy, optoelectronics, and advanced materials sectors. The compound is available in various forms, including powders and thin-film precursors, to meet diverse industrial requirements.

Application

• Thin-Film Photovoltaics: As a critical absorber layer in high-efficiency Copper Indium Gallium Selenide (CIGS) and related solar cells.
• Optoelectronic Devices: Used in the development of photodetectors, light-emitting diodes (LEDs), and other semiconductor devices.
• Research & Development: Serves as a fundamental material for studying chalcopyrite semiconductor properties, bandgap engineering, and new energy conversion mechanisms.
• Advanced Coatings: Employed in the deposition of functional coatings for specialized optical and electronic applications.
• Thermoelectric Materials: Investigated for use in components that convert heat directly into electricity.
• Nanomaterial Synthesis: A precursor for creating nanoparticles and quantum dots with specific optical characteristics.

Basic Information

Product Name	Copper Gallium Selenide
CAS No.	12018-84-7
Molecular Formula	CuGaSe₂
Molecular Weight	275.33 g/mol
Synonyms	Copper Gallium Diselenide; CuGaSe₂; Gallium Copper Selenide; CGS; Copper(I) Gallium(III) Selenide; Chalcopyrite (CuGaSe₂); CIS-related absorber material
EINECS	Contact for details

Quality Control

Our Copper Gallium Selenide is produced and tested under stringent quality management protocols to ensure batch-to-batch consistency and performance reliability for demanding applications. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as purity, phase composition, particle size distribution, and elemental analysis. Our quality systems are designed to support R&D and industrial manufacturing needs, with specifications that can be aligned with customer-specific requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is moisture-sensitive (hygroscopic) and should be kept under an inert atmosphere such as argon or nitrogen for long-term storage to prevent oxidation and degradation. Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Black powder or crystalline pieces
Identification (XRD)	Matches CuGaSe₂ Chalcopyrite phase
Purity (Elemental Analysis)	≥ 99.9% (4N)
Copper (Cu) Content	22.5 - 23.5 %
Gallium (Ga) Content	24.5 - 25.5 %
Selenium (Se) Content	Balance
Particle Size (D50)	1-10 µm (or as specified)
Trace Metals (ICP-MS)	< 100 ppm total

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