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，是从剑桥大学分拆出来的。我们使用创新的多孔化技术开发商业质量的外延晶圆，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）的外延膜（50nm-5µm）中引入纳米孔（10-50 nm），整个晶圆的光学、机械、热学和电学性能变得可调。2020年11月，Porotech推出了用于微型led应用的原生红色外延晶圆（基于ingan外延结构的红色发射）。2022年5月，Porotech推出了采用动态像素调谐（DPT）技术的全彩色MicroLED显示器，使用简单的驱动方案，可以将像素的发射调谐到可见范围内的任何波长。因此，我们基于多孔GaN的平台技术不仅可以使InGaN LED的发光红移，而且可以动态地调整其颜色从红色到蓝色。通过这个项目，我们将建立在多孔晶圆上的MQW LED的颜色可调性和微观结构之间的相关性。这将加速开发更高效的微型led产品，从而降低成本，降低风险，并提高制造产量。这些知识将转化为Porotech相对于那些不投资于基本知识的公司的竞争优势，因此有可能使我们在微型led市场份额中处于领先地位。我们的目标是提供具有优势的微led多孔晶圆材料。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，特别是在深科技领域。

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.