Porotech, a company spin-off from the University of Cambridge, announced the launch of its first product based on its unique GaN production technology, and it is also the world's first commercialized native red LED epitaxy for Micro LED applications.
Traditional red LEDs are mainly based on AlInGaP materials. Due to the large carrier diffusion length and high surface recombination speed, as the size of the device decreases, their efficiency drops sharply.
Porotech's production process can create new types of porous GaN semiconductor materials, which the company says will redefine the possibilities.
Porotech CEO and co-founder Zhu Tongtong said: “Micro-LED displays using GaN-based material technology are widely regarded as the only display that can provide sufficient brightness and efficiency to meet AR requirements. With AR glasses, one day is expected. Instead of smartphones — or at least reduce our interaction with devices in our pockets — the development of advanced materials to improve performance is critical."
"Integrating AlInGaP red and InGaN green and blue LED displays in modules with micron-level pixels is extremely challenging because the high surface recombination speed in AlInGaP devices makes this material unsuitable for high-efficiency Micro LEDs. Our breakthrough expansion The emission range of InGaN can meet the performance requirements of red light display and the ability to expand the wafer size required for Micro LED semiconductor display technology."
Porotech stated that its products comply with existing industry standards and processes, and its proprietary technology is powerful and flexible enough to meet the needs of different applications. Porotech's native InGaN Micro LED has a wavelength of 640nm at 10A/cm2. With a very small pixel and pitch, its performance has been improved compared to conventional AlInGaP and color conversion red light.
Earlier this year, Porotech received a £1.5 million seed round of investment led by Cambridge Enterprise and IQ Capital Partners, the commercialization arm of the University of Cambridge. In addition, Martlet Capital and angel investor groups from Cambridge Angels and Cambridge Capital Group also participate.