InGaN Quantum Dot Devices

本研究的目标是外延生长高质量的InGaN有序量子点（QD）阵列，独立控制QD密度、尺寸、形状和高度，实现高效的InGaN QD光发射器和量子光学器件。智能优势：InGaN量子点器件可以为短波光电子、高功率和高速电子、自旋电子学、纳米光子学和量子光学提供优越的性能。目前InGaN QD器件的问题包括不均匀性、弱量子约束和材料质量差。提出的工作探索了一种制造高质量InGaN QD器件的新方法，通过避免应变诱导的stranski - krstanov生长中的2D-3D转变以及与之相关的各种问题。通过将高质量的InGaN量子点集成到光发射器和量子光学结构中，本研究将提供对InGaN量子点器件的基本理解，阐明这些器件的真正潜力，而不会被量子点质量差所掩盖。更广泛的影响：该计划的更广泛的影响包括：(1)为不同水平（从K12到研究生）的学生和几个代表性不足的群体创造一个多学科（材料科学，器件物理，半导体加工和光学科学）的科学学习环境；(2)开设固态照明与光伏本科新课程，开设纳米光子学研究生新课程；(3)与密歇根大学（OE）^2办公室合作开展外展项目，为当地K12学校开发教学模块。然后，这些教学模块将通过互联网传播给更广泛的受众。

The objectives of this research are to epitaxially grow high quality InGaN ordered quantum dot (QD) arrays, to independently control the QD density, size, shape, and height, and to realize high efficiency InGaN QD light emitters and quantum optical devices. Intellectual Merit: InGaN QD devices can provide superior properties for short-wavelength optoelectronics, high power and high speed electronics, spintronics, nanophotonics, and quantum optics. Current issues of InGaN QD devices include nonuniformity, weak quantum confinement, and poor material qualities. The proposed work explores a new approach to fabricating high quality InGaN QD devices by avoiding the strain-induced 2D-3D transition in the Stranski-Krastanov growth and various issues associated with it. Through the integration of high quality InGaN QDs in light emitters and quantum-optical structures, the proposed work will provide a fundamental understanding of InGaN QD devices, elucidating the true potential of these devices without being masked by the poor quality of QDs. Broader Impacts: The broader impacts of this program include (1) the creation of a multidisciplinary (materials science, device physics, semiconductor processing, and optical science) scientific learning environment for students at a variety of levels (from K12 to graduate) and from several underrepresented groups; (2) the development of a new undergraduate course in Solid-State Lighting and Photovoltaics, and a new graduate course in Nanophotonics; (3) outreach projects in collaborations with (OE)^2 Office at the University of Michigan to develop teaching modules for local K12 schools. These teaching modules will then be disseminated to a broader audience via internet.