Diamond electronic devices for operation in space: A combined experimental and quantum simulation study

研究背景金刚石是生产下一代高性能电子器件的一种奇妙的新材料。了解金刚石表面在原子和量子水平上的基本操作对于金刚石电子器件技术的持续发展至关重要，并构成了这项博士研究的基础。金刚石的独特性质特别使其成为开发在极端和危险环境中运行的坚固电子系统的理想选择，例如未来的卫星技术，地外行星探索和长途太空任务。虽然金刚石具有许多独特的特性，使其作为有源半导体非常有吸引力，与掺杂有关的困难限制了一系列电子、传感、光学和量子技术的持续发展。这项工作将研究在金刚石表面发挥作用的物理，化学和电学过程，以更好地了解和开发金刚石表面转移掺杂（STD）的潜力。在金刚石中建立稳健和高性能的STD工艺将促进广泛领域或基于金刚石的应用中的研究，其主要焦点是高功率，目的和目标建立金刚石和一系列电子受体材料界面处STD过程的原子模型，从理论和实验两方面探索金刚石的替代表面终端，以研究它们的先进的STD的潜在应用。生成一个详细的模型与金刚石电荷的次表面传输，并确定在载流子迁移率和密度方面可实现的最大性能。研究方法的新奇本研究将联合收割机前沿实验金刚石实验工作与原子模型和模拟相结合，以弥合金刚石电子器件基础研究中理论与实践之间的差距。格拉斯哥大学是目前世界领先的金刚石器件技术的发展，这项工作将大大扩大和补充这项研究。调整EPSRC的战略和研究领域：作为EPSRC的“射频和微波器件”的一部分，拟议的工作强烈符合EPSRC的ICT塑造能力运动，并强调作为一个优先研究领域的增长其潜在的应用和好处目前正在开发的钻石技术的范围，但尚未建立将受益于这项工作。具体来说，这项研究将影响高功率、高频设备和系统的发展，这些设备和系统将用于一系列未来应用，例如卫星通信、雷达等。任何公司或合作者Oliver威廉姆斯-卡迪夫大学Element Six LtdAlex Talliare -巴黎巴黎13

The context of the researchDiamond is a fantastic new material for the production of future generation high performance electronic devices. Understanding the fundamental operation of the surface of diamond at the atomic and quantum level is crucial for the ongoing development of diamond electronic device technology and forms the basis for this PhD research. The unique properties of diamond in particular make it ideal for the development of robust electronic systems for operation in extreme and hazardous environments such as for future satellite technologies, extra-terrestrial planetary exploration and long-haul space missions.Brief description of the context of the research including potential impact;Although diamond possesses many unique characteristics which make it highly attractive as an active semiconductor, difficulties associated with doping have restricted the ongoing development of a range of electronic, sensing, optical and quantum technologies. This work will investigate the physical, chemical and electrical processes at play at the diamond surface to develop greater understanding and exploitation potential of surface transfer doping (STD) in diamond. Establishing a robust and high performance STD process in diamond will catalyse research in an wide area or diamond based applications with the primary focus being high power, robust electronics for this work.Aims and objectivesDevelop an atomistic model for the STD process at the interface between diamond and a range of electron acceptor materials.Explore alternative surface terminations of diamond both theoretically and by experimentation to investigate their potential application for advanced STD.Generate a detailed model for the sub-surface transport of charge with diamond and ascertain the maximum performance achievable in terms of carrier mobility and density. Novelty of the research methodologyThis research will combine cutting edge experimental diamond experimental work with atomistic modelling and simulation to bridge the gap between theory and practise in fundamental diamond electronic device research. The University of Glasgow are currently world leaders in the development of diamond device technology and this work will expand greatly upon and complement this research.Alignment to EPSRC's strategies and research areas:As part of the EPSRC remit for "RF and Microwave Devices", the proposed work strongly aligns with the EPSRC ICT shaping capability campaign and is highlighted as a priority research area for growthIts potential applications and benefitsA range of diamond technologies currently in development and yet to be established will benefit from this work. Specifically this research will impact the development of high power, high frequency devices and systems for use in a range of future applications e.g. satellite communications, radar etc.Any companies or collaboratorsOliver Williams - Cardiff UniversityElement Six LtdAlex Talliare - University Paris 13