The Need

Many advanced sensing, imaging, and optoelectronic systems rely on compound semiconductors that outperform silicon in key spectral and electronic regimes, particularly in the infrared. However, these materials are expensive and difficult to scale, while silicon remains the industry standard for high-volume, low-cost manufacturing. The inability to reliably combine high-performance compound semiconductors with silicon at wafer scale limits system performance, manufacturability, and cost reduction across infrared imaging, sensing, and related markets.

The Technology

OSU engineers have developed a new approach for integrating high-performance antimonide-based compound semiconductors with silicon-compatible substrates. It leverages an engineered epitaxial material stack designed to manage mismatch-related defects that typically degrade material quality. By carefully structuring intermediate layers, the approach enables the growth of high-quality antimonide materials on non-native substrates using established semiconductor fabrication methods, while remaining compatible with scalable, wafer-level manufacturing processes.

Commercial Applications

• Infrared detectors and focal plane arrays
• Advanced imaging systems for industrial, aerospace, and defense markets
• Integrated optoelectronic devices on silicon platforms
• High-performance electronic and photonic components for sensing and communications

Benefits/Advantages

• Improved material quality: Reduces defect densities compared to existing metamorphic approaches
• Scalability: Compatible with large-diameter, silicon-based substrates
• Cost reduction: Enables high-performance devices using manufacturable processes
• Flexibility: Applicable to multiple device types and compound semiconductor systems