CDT Compound Semiconductor Physics (PhD Progression 1+3)

CDT 化合物半导体物理（博士进修 1 3）

• 批准号: 2881702
• 金额: --
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2881702
• 关键词: CDT; Compound; Semiconductor; Physics; PhD

Lasers containing Quantum Dot (QD) active regions offer substantial advantages for application in widely tuneable semiconductor lasers, in semiconductor optical amplifiers, in mode-locked lasers and in Photonic Integrated Circuits. In each case the Optimum Epitaxial design is different, albeit based on a common material system and similar physics. Following recent advances made by the Cardiff-UCL team in the design, growth and fabrication of 1300nm emitting QD materials, we see an opportunity to develop epitaxy platforms to support world leading device performance. We have recently demonstrated QD lasers grown by IQE at manufacturing scale on 150mm and 200mm substrates but with considerable variability across the wafer. To make progress we need to understand the origin of the variability, need designs that are insensitive to this variability in the growth, and that are separately optimised for each of the applications above. Alternatively we need on-wafer characterisation that enables the identification of whole wafers or regions of a wafer to be utilised for particular types of device prior to full fabrication. We envisage that close cooperation with material growers and the rest of the team and the development of a very good understanding of the complex relationships between design, growth fabrication and characterisation will be necessary to create a world leading technology.

含有量子点（QD）活动区域的激光器在广泛可调的半导体激光器，半导体光放大器，模式锁定激光器和光子整合电路中的应用提供了可观的优势。在每种情况下，最佳的外延设计都是不同的，尽管基于常见的材料系统和类似的物理。在加的夫-UCL团队在1300nm发射QD材料的设计，增长和制造方面取得的最新进展之后，我们看到了一个机会开发外观平台以支持世界领先的设备性能。我们最近证明了IQE在150mm和200mm底物上由IQE生长的QD激光器，但整个晶片的可变性很大。为了取得进步，我们需要了解可变性的起源，需要对增长的这种变异性不敏感的设计，并且对上述每个应用程序进行了分别优化。另外，我们需要磁力表征，使整个晶圆或晶片的区域都可以在完整制造之前用于特定类型的设备。我们设想，与物质种植者和团队的其他成员进行密切合作，以及对设计，增长制造和表征之间复杂关系的很好的理解，以创建世界领先的技术。