This Small Business Innovation Research Phase I project will investigate the feasibility of growth of high quality, low cost bulk gallium nitride substrates by the high pressure ammonothermal method. The proposed approach utilizes a novel apparatus which is scalable to process volumes of hundreds of… More

This Small Business Technology Transfer Phase I project will investigate the feasibility of growth of high quality, low cost bulk gallium nitride substrates by the high pressure ammonothermal method. The proposed approach utilizes a novel apparatus which is scalable to process volumes of hundreds of… More

While there have been tremendous advances in light-emitting diode (LED) technology based on gallium nitride (GaN), LED performance still falls short of what is required for solid-state lighting to become a ubiquitous general illumination solution. Recently, it has been demonstrated that… More

We propose to demonstrate and advance several key aspects of our novel, scalable ammonothermal technology for growth of high quality single crystal gallium nitride. Specifically, we propose to demonstrate a high growth rate and high crystalline quality, to design and analyze a pilot-scale reactor,… More

This Small Business Innovation Research (SBIR) Phase II project aims to develop a scalable, compact and rapid ammonothermal method to grow high-quality, low-cost bulk gallium nitride (GaN) substrates. A novel apparatus that is scalable to large volumes at modest cost will be utilized to achieve… More

Soraa proposes to develop low-cost, large area semipolar ammonothermal true bulk GaN substrates. Semipolar bulk GaN substrates are expected to be transformative for high power blue, green, and/or yellow LEDs, enabling high efficiency, high power density LEDs at costs below $3/kilolumen. The large… More

ABSTRACT: We propose to develop cost and growth-rate models quantifying the capability for Soraa's proprietary SCoRA ammonothermal reactor and associated procedures to produce bulk GaN with low threading dislocation defect concentrations. The new apparatus and methods will enable major… More

Existing gas and solid state green laser technology is not adequate to Navy"s needs for comm due to the large size, weight, cost, inefficiency, complexity. Furthermore, to modulate these lasers at high frequency, expensive and bulky acousto-optical modulators are required. Additionally, the… More