Gallium Selenide

Gallium selenide includes gallium(III) selenide and gallium(II) selenide, which are minor metal selenides. Ga₂Se₃ is reddish black brittle hard lumps, ingot piece or powder, however GaSe is dark brown crystal, which are both photoelectric material. GaSe is layer structure semiconductor as GaS. With temperature decrease, Max value of its photoelectric effect move to shortwave end. Selenium metal and gallium metal are raw material for both Ga₂Se₃ and GaSe.

Gallium Selenide

Quality Specifications

Our gallium selenides are produced under stringent conditions to ensure high chemical purity, typically 99.99% (4N) or 99.999% (5N), minimizing impurities deterimental to electronic and optical performance. Crystalline products exhibit high phase purity and structural integrity. Materials are handled and packaged in moisture-controlled environments ( often under inert gas like Argon) due to potential sensitivity to humidity and oxidation. Certificates of Analysis detailing purity, phase identification (XRD), and trace metal impurities are provided.

Key Applications

1.Optoelectronics & Photonics : Both compounds are vital photoelectric materials. GaSe is particularly valueable for its efficient nonlinear optical properties (e.g., second harmonic generation, difference frequency generation) in the mid-infrared (IR) to terahertz (THz) range, enabling applications in IR lasers, spectroscopy, and imaging systems. Its layered structure is ideal for nonlinear optical devices.

2.Semiconductor Devices: Plays a part in thin-film transistors (TFTs), photodetectors (especially GaSe for visible/near-IR), and as buffer/window layers in specialized thin-film solar cell (e.g., CIGS variants utilizing Ga₂Se₃).

3.Photovoltacis: Ga₂Se₃ serves as absorber layer or component in next-generation thin-film solar cells due to its suitable bandgap and absorption properties.

4.Catalysis: Serve as a photocatalyst for water splitting and pollutant degradtion.

5.Solid-State Batteries: Works as potential electrode materials due to their ionic conductivity properties.

6.Research & Development: Fundamental studies in semiconductor physics, 2D materials (exfoliated GaSe layers), phase transitions, and novel device concepts.