CAREER-QMHP: Understanding Electron dynamics at the nano-micro interface

CAREER-QMHP：了解纳米-微米界面的电子动力学

• 批准号: 0748009
• 负责人: Avik Ghosh
• 金额: $ 40万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-02-01 至 2014-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0748009&HistoricalAwards=false
• 关键词: CAREER; QMHP; Understanding; Electron; dynamics

Proposal Number: ECCS-0748009Proposal Title: CAREER-QMHP: Understanding Electron dynamics at the nano-micro interfacePI Name: Ghosh, AvikPI Institution: University of Virginia Main CampusObjective: The objective of this research is to simulate how nanoscale electronic components interact with their micro or macro-environment. The goal is to explore how current in a transistor channel is influenced by nano-sized adsorbates, ranging from random impurities to precision-engineered quantum dots. The study will enable the design of novel devices such as memories and sensors, operating on the controlled insertion and manipulation of molecular 'traps'. The approach is to couple the channel and dot electrons -- at the formal level by solving their respective dynamical equations to match their response functions, and at the computational level by employing embedding techniques to match their interfacial band-structures. Intellectual MeritUnderstanding the dynamics at the nano-micro interface will prove crucial to the design of emerging devices that will involve a mixture of length, time and energy scales. The study will enhance fundamental understanding of many-body effects in quantum transport. It will bridge disciplines, materials, and ultimately, the boundary between fundamental science and technological applications. Broader Impact The research will allow the engineering of hybrid devices operating on fundamentally new principles, while still interfacing with present-day silicon technology. Nano-science will be made accessible to Albemarle middle schools through 'hands-on', experiential learning, and to K-12 students and teachers in partnership with the Science Museum of Virginia. Web-based education tools will be deployed on the UVa Virtual Lab, the NSF-sponsored Computational NanoHUB and a nanoscience curriculum under development. Minority students will be engaged through activities involving the university's Center for Diversity in Engineering.

提案编号：eccs -0748009提案标题：CAREER-QMHP：在纳米-微观界面上理解电子动力学i姓名：Ghosh， AvikPI机构：弗吉尼亚大学主校区目的：本研究的目的是模拟纳米级电子元件如何与其微观或宏观环境相互作用。目标是探索晶体管通道中的电流如何受到纳米级吸附物的影响，从随机杂质到精密工程量子点。这项研究将使存储器和传感器等新型设备的设计成为可能，这些设备可以控制分子“陷阱”的插入和操作。该方法是将通道和点电子耦合起来——在形式层面上，通过求解它们各自的动力学方程来匹配它们的响应函数，在计算层面上，通过采用嵌入技术来匹配它们的界面带结构。理解纳米-微界面的动力学对于设计涉及长度、时间和能量尺度混合的新兴设备至关重要。该研究将加强对量子输运中多体效应的基本认识。它将跨越学科、材料，并最终跨越基础科学和技术应用之间的界限。更广泛的影响这项研究将使混合设备的工程在基本的新原理上运行，同时仍然与当今的硅技术相结合。纳米科学将通过“动手”、体验式学习向Albemarle中学开放，并与弗吉尼亚科学博物馆合作向K-12学生和教师开放。基于网络的教育工具将部署在弗吉尼亚大学虚拟实验室、美国国家科学基金会资助的计算纳米中心和正在开发的纳米科学课程上。少数族裔学生将参与该校工程多样性中心的活动。