CAREER: Dielectric Engineering of Quantum Wire Solids: Fundamentals to Applications

技术：本项目研究量子线的基本特性，重点是电介质环境对电子和光学特性的控制。介电改性有望作为带隙和有效质量控制的补充，通常应用于外延半导体异质结构。研究计划包括：1。介电环境对量子线输运特性影响的理论研究，2。材料/配置设计和测试，以实现量子线的期望性能。该研究预计将导致非常规方法的发展，以控制和使用电子和光学器件中的量子线，形成广泛应用的基础，如晶体管，发光二极管，光电探测器和光伏。介电环境对量子线特性的影响也可能为传感器技术提供灵感。非技术：该项目涉及材料科学主题领域的基础研究问题，具有很高的技术相关性。该研究将在基础水平上贡献基础材料科学知识，为潜在的下一代电子/光子器件提供新的理解和能力。该项目为研究生和本科生在跨学科领域的培训提供了独特的机会。该项目还包括一项外展计划，包括与一名高中教师合作，为当地高中生进行纳米级扫描探针技术的现场实验演示。

Technical: This project addresses fundamental properties of quantum-wires with emphasis on control of electronic and optical properties by the dielectric environment. Dielectric modification is anticipated as an addition to bandgap and effective mass control commonly applied to epitaxial semiconductor heterostructures. The research plan includes: 1. theory for the effect of dielectric environments on transport properties of quantum-wires, 2. materials/configuration design and test to achieve desired properties of quantum-wires. The research addressed is expected to lead to development of unconventional methods to control and use quantum-wires in electronic and optical devices forming the basis for a wide range of applications such as transistors, light-emitting diodes, photodetectors, and photovoltaics. The effect of the dielectric environment on the properties of quantum wires may also seed ideas for sensor technologies. Non-technical: The project addresses basic research issues in a topical area of materials science having high technological relevance. The research will contribute basic materials science knowledge at a fundamental level to new understanding and capabilities for potential next generation electronic/photonic devices. The project provides unique opportunities for graduate and undergraduate training in an interdisciplinary field. The project also includes an outreach program comprising on-site experimental demonstration of nanoscale scanning probe techniques for local high-school students with collaboration of a high-school teacher.