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

技术：本项目研究量子线的基本性质，重点是介电环境对电学和光学性质的控制。介电修饰被认为是对通常应用于外延半导体异质结的带隙和有效质量控制的补充。研究计划包括：1.介电环境对量子线输运特性影响的理论，2.材料/构型设计和测试，以达到所需的量子线性能。这项研究有望导致在电子和光学设备中控制和使用量子线的非传统方法的开发，这些方法为晶体管、发光二极管、光电探测器和光伏等广泛应用奠定了基础。介电环境对量子线性质的影响也可能为传感器技术带来灵感。非技术性：该项目解决具有高度技术相关性的材料科学专题领域的基础研究问题。这项研究将在基础水平上为潜在的下一代电子/光子设备的新理解和能力贡献基本材料科学知识。该项目为跨学科领域的研究生和本科生培训提供了独特的机会。该项目还包括一个外展项目，该项目包括与一名高中教师合作，为当地高中生现场实验演示纳米扫描探头技术。

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.