CAREER: Massively Parallel and Manufacturable Self-Assembly Techniques for Interfacing and Integrating Nanowires in Devices and Circuits

本学院早期职业（Career）的研究目标是解决一维半导体纳米线与器件和电路的接口和互连的长期问题，并提出开发新的可批量生产的解决方案。该计划的总体目标是推进我们对纳米线-体界面的器件物理理解，并促进具有创新量子效应的基于纳米线的器件和系统的设计，集成和大规模生产的新实用技术。尽管在纳米线合成方面取得了重大进展，并且有许多有前途的单器件演示，但由于我们无法将纳米线控制在集成电路中，因此纳米线的应用一直停滞不前。不同于在器件物理研究中顺序连接电极到单个纳米线的研究方法，本研究将采用一种新颖的技术，即在预制电极之间的纳米线外延桥接，用于可重复制造超密集和低成本的器件和电路阵列。将探索生长条件、掺杂技术和晶圆加工方法，以了解和优化纳米线-体连接。CAREER项目的教育目标集中在显著影响加州大学戴维斯分校研究生和本科生以及奥克兰公立学校系统中大量少数民族学生的研究经历。PI建议开发一门新的纳米技术课程，名为“纳米结构器件：物理与技术”，这门课程将向本科生介绍和激发他们对纳米制造的兴趣，并为他们提供就业机会。PI将开发一个项目，将纳米技术的进步知识传播到加州奥克兰市中心一个主要贫困且社会经济受影响的社区的一所高中。该研究计划将通过开发具有革命性新能力和性能的具有成本效益的大规模制造方法，将纳米线转变为一种可靠的技术，从而对纳米制造领域产生重大影响。结果将导致前所未有的器件密度，最终使基于纳米线的器件成为商业现实，并在成本/性能比方面取得重大进步。这将促进电子、光子、能量存储和转换、先进光源、传感和生物系统等设备的大规模生产。研究团体也将在短期内受益于通用试验台的开发，该试验台将结合传统的微制造（自下而上）和合成纳米制造（自上而下），其中自组装纳米结构与预制微结构相匹配，以测试量子器件中的新概念。

The research objective of this Faculty Early Career (CAREER) proposes to address the long-standing issues of interfacing and interconnecting one-dimensional semiconductor nanowires with devices and circuits and proposes to develop novel mass-manufacturable solutions. The broad goals of this program are to advance our device physics understanding of nanowire-bulk interfaces and to facilitate new practical technologies for design, integration and mass production of nanowire based devices and systems with innovative quantum effects. Despite significant progress in nanowire synthesis and many promising single device demonstrations, applications of nanowires have been stalled by our inability to controllably incorporate them within integrated circuits. Unlike the research-based approach of sequentially connecting electrodes to individual nanowires for device physics studies, this research will employ a novel technique of epitaxial bridging of nanowires between pre-fabricated electrodes for reproducible fabrication of ultra-dense and low-cost device and circuit arrays. Growth conditions, doping techniques and wafer processing methods will be explored to understand and optimize nanowire-bulk connections. The educational objectives of the CAREER program are focused on significantly impacting the research experience of both graduate and undergraduate students at the University of California Davis and the large numbers of minority students in Oakland public school system. The PI proposes to develop a new nanotechnology course titled Nanostructured Devices: Physics and Technology that will serve to introduce and excite undergraduate students about nano-manufacturing and the career opportunities that will be available to them. The PI will develop a program for inseminating knowledge of the advancements in nanotechnology into a high school in a predominantly underprivileged and socio-economically impacted neighborhood of downtown Oakland, California.The proposed research plan will greatly impact the fields of Nanomanufacturing by transitioning nanowires into a reliable technology through the development of cost-effective mass-manufacturing methods with revolutionary new capabilities and performances for wide variety of applications. The outcome will lead to unprecedented device density, ultimately making the nanowire based devices a commercial reality with a major improvement in the cost/performance ratio. This will facilitate mass-manufacturing of devices for electronic, photonic, energy storage and conversion, advanced light sources, sensing, and biological systems. The research community will also benefit in the near term through the development of a universal test-bed for combining conventional microfabrication (bottom-up) and synthetic nanofabrication (top-down) where self-assembled nanostructures mate to pre-fabricated microstructures to test new concepts in quantum devices.