Dr Yingjun Liu

Dr Yingjun LiuPorotech has created a new class of semiconductor material: porous GaN, a composite of solid GaN and air. The company’s breakthroughs enable nanoscopic holes to be made in the semiconductor, resulting in a wide range of optical, mechanical, thermal, and electrical properties. The company is also delivering monochrome and full-colour micro-LED products to exceptionally high specifications.

Before this innovation, the manufacture of full-colour micro-LED displays was complicated and commercially prohibitive. Several material systems needed to be combined to develop a finished product. Porotech’s innovative process allows monochrome and full-colour displays to be placed on a single indium gallium nitride material system at mass scale, with the luminosity, efficiency and resolution needed for high-quality image projection against bright backgrounds.

Now, all three light-emitting elements can be produced using a single toolchain. Porotech’s technology offers a brand new material platform for semiconductor devices to be built on. This will be relevant for emerging markets such as micro-LED displays, metasurfaces, sensors, lasers, and quantum light sources.

Dr Yingjun Liu is the co-founder and CTO of Porotech Ltd, and joined the Shott Scale Up Accelerator in 2022. He says, “As I am responsible for setting the technology plan and managing growing teams, I want to develop a unique blend of management and technical skills for a high-growth business. Being able to exchange ideas with future industrial leaders and learn from leading entrepreneurs will help me contribute even more to our company’s global business and technology progress.”

Porotech recently secured £14.5 million in Series A funding. This investment will help the company to speed up its production of micro-LED products and rapidly scale up. Micro-LED displays will play an important part in subsequent generations of TVs, wearables, smartphones, and AR glasses.


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