Fabrication of Hexagonal ε-(InxGa1-x)2O3 Thin Films on AlN via Pulsed Laser Deposition

Description:

This technology provides a novel approach to fabricating hexagonal ε-(InxGa1-x)2O3 thin films on AlN/Sapphire templates by carefully controlling pulsed laser deposition parameters such as heater temperature, oxygen pressure, and laser settings. It overcomes challenges like orthorhombic phase formation and indium desorption, enabling the production of device-grade, single-crystal epitaxial films. Comprehensive characterization confirms the material’s crystal structure, composition, and optical properties, demonstrating repeatable and controllable fabrication essential for advanced electronic applications.

Key Advantages:

• Precise phase control ensuring formation of pure hexagonal ε-(InxGa1-x)2O3.
• Preservation of stoichiometry through PLD compared to other deposition methods.
• Capability to produce complex compositions with high repeatability.
• Enhanced material quality suitable for high-power electronic devices.
• Non-invasive parameter optimization enabling scalable manufacturing.

Problems Solved:

• Elimination of unwanted orthorhombic phase in thin film growth.
• Mitigation of indium desorption during deposition.
• Improved stoichiometric control over complex oxide compositions.
• Reliable growth of single-crystal hexagonal phases on heterogeneous substrates.

Market Applications:

• High-power and high-frequency electronic devices.
• Advanced thin film materials for semiconductor and optoelectronic industries.
• Device-grade oxide films for power electronics and sensors.
• Next-generation epitaxial layer production for research and commercial use.