Identification of dominant efficiency droop mechanism in GaN LED

VueReal是一家总部位于滑铁卢的公司，致力于下一代超高分辨率发射显示系统。更具体地说，VueReal正在开发一种新的集成技术，该技术可以创建各种结构和形状的微型LED显示器，适用于各种便携式应用，如手机，平视显示器，微型投影仪和智能手表以及虚拟现实（VR）和增强现实（AR）设备。微型LED显示屏市场预计将从目前的2.25亿美元增长到2025年的199亿美元，复合年增长率为54%。因此，VueReal的定位是在这个新兴市场建立设计师和制造商的领导地位。然而，VueReal目前正面临着一个挑战，当设备尺寸减小到几微米时，其LED的效率会下降，这是微型LED显示器所需的尺寸尺度。小尺寸LED中这种效率下降的性质和原因仍然未知。在这个项目中，滑铁卢大学的Aziz团队将与VueReal合作，研究和分析其LED的效率性能，目的是阐明效率下降行为背后的因素。所获得的知识将用于开发新的器件设计和/或工艺流程，以减轻这种不良影响。此次合作将使VueReal能够解决这一问题，从而创建基于知识的技术产品，使加拿大制造商能够为消费电子市场开辟新兴的增强/虚拟现实（AR/VR）显示器市场。成功的结果将产生一个制造能力的基础上现有的微制造技术将创造一个转型技术，可以利用现有的加拿大基础设施在消费电子部门。

VueReal is a Waterloo-based company working on next-generation ultra-high resolution emissive displaysystems. More specifically, VueReal is developing a novel integration technique that enables the creation ofmicro-LED displays in a variety of structures and form factors suitable for a wide range of portable applicationssuch as cell-phones, head-up displays, pico-projectors, and smart watches as well as virtual reality (VR) andaugmented reality (AR) devices. The micro-LED display market is expected grow from the current $225M to$19.9B in 2025, a 54% compounded annual growth rate. VueReal is therefore positioned to establish aleadership role as a designer and manufacturer in this emerging market. However, VueReal is currently facing achallenge in that the efficiency of its LEDs decreases when device dimensions are reduced to few micrometers,the size scale required for micro-LED displays. The nature and causes of this efficiency droop in the small sizeLEDs is still unknown. In this project, Aziz's group at the University of Waterloo will work with VueReal tostudy and analyze the efficiency performance of its LEDs with the purpose of elucidating the factors behind theefficiency droop behaviour. The obtained knowledge will then be utilized for developing new device designand/or process flow that will mitigate this undesired effect. The collaboration will enable VueReal to solvethis problem, and thus create knowledge-based technology products that will enable Canadian manufacturers topenetrate the emerging market for augmented/virtual reality (AR/VR) displays for the consumer electronicsmarket. The successful outcome will produce a manufacturing capability based on existing micro-fabricationtechniques will create a transformational technology that can leverage existing Canadian infrastructure in theconsumer electronics sector.