Time-resolved spectroscopic and microscopic measurements of multiple quantum well (MQW) on porous GaN wafer

Porotech是一家新兴的氮化镓(GaN)材料技术开发商，是从剑桥大学剥离出来的公司。我们使用创新的多孔化技术开发商业质量的外延片，使我们的客户能够释放GaN电子和光电子的潜力。通过在晶圆尺度(6、8、12英寸)的外延薄膜(50 nm-5微米)中引入纳米孔(10-50 nm)，整个晶片的光学、机械、热学和电学性能变得可调。2020年11月，Porotech推出了用于微LED应用的颠覆性原生红色外延晶片(InGaN基外延结构的红色发射)。2022年5月，Porotech推出了采用DynamicPixelTuning(DPT)技术的全彩色microLED显示屏，使像素的发射能够通过简单的驱动方案调整到可见光范围内的任何波长。因此，我们的基于多孔GaN的平台技术不仅可以红移InGaN LED的发光，而且可以动态地将其颜色从红调到蓝。通过这个项目，我们将建立基于多孔晶片的多量子阱LED的颜色可调性与微结构之间的关联。这将加快更高效的microLED产品的开发进程，从而降低成本、降低风险和大幅提高制造收益率。这些知识将转化为Porotech相对于那些不投资于基本了解的公司的竞争优势，从而可能使我们在microLED市场份额方面处于领先地位。我们的目标是为MicroLED提供具有优势的多孔硅片材料。通过我们的合作，我们相信NPL和Porotech将为国民经济做出重大贡献，特别是在深度技术领域。

Porotech is an emerging Gallium Nitride (GaN) material technology developer and a spin-out from the University of Cambridge. We develop commercial-quality epi-wafers using innovative porosification technology, enabling our customers to unleash the potential of GaN electronics and optoelectronics. By introducing nano-pores (10-50 nm) into epitaxial film (50nm-5µm) at wafer-scale (6, 8, 12 inches), the whole wafer's optical, mechanical, thermal and electrical properties become tuneable. In Nov 2020, Porotech launched the disruptive Native Red Epi-wafer (Red emission from InGaN-based epi-structure) for microLED applications. In May 2022, Porotech launched full colour MicroLED displays with DynamicPixelTuning (DPT) Technology, enabling a pixel's emission to be tune to any wavelength in the visible range using a simple drive scheme. So our platform technology based on porous GaN not only red-shifts the InGaN LED's emission, but also can dynamically tune its colours from red to blue.Through this project we will establish the correlation between the colour tuneability and microstructures in MQW LED built on porous wafers. This will accelerate development progress for more efficient microLED products, resulting in lower cost, reduced risk, and much higher manufacturing yield.This knowledge will be transformed into Porotech's competitive advantage over those companies that do not invest in fundamental understanding, and hence potentially afford us leadership in microLED market share. Our aim is to supply porous wafer materials for microLED with dominant advantages. By our collaboration, we believe NPL and Porotech will contribute significantly to the national economy, especially within the deep-tech sector.