Electrical Properties of Single Molecules; from Switches towards Devices

单分子的电学性质；

• 批准号: 1508567
• 负责人: Eric Borguet
• 金额: $ 45万
• 依托单位: Temple University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-15 至 2019-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1508567&HistoricalAwards=false
• 关键词: Electrical; Properties; Single; Molecules; Switches; Electrical; Properties; Single; Molecules; Switches

In this project, funded by the Chemical Measurement and Imaging Program of the Chemistry Division, Professor Eric Borguet of Temple University designs and performs experiments to investigate the characteristics of single molecules with a particular focus on the effect of external physical and chemical parameters on changing the electrical resistance. To meet this challenge, target molecules whose properties depend on their immediate surroundings are investigated with state-of-the-art techniques. This research advances our understanding of the electrical properties of molecular components of sensors and electrical devices. The broader impacts of this work include potential societal benefits from the discovery of single molecule sensors and switches which can help to miniaturize electronic devices as well as the education and development of a diverse scientific workforce trained in a multidisciplinary environment. In addition, by providing participants from the diverse student body of Temple University that includes underrepresented minorities and first generation college students, and allowing local high school students the opportunity to engage in this research, the preparation of the next generation of scientists is advanced. This project focuses on the use of scanning tunneling microscopes to create nanoscale junctions that can trap single molecules for electrical measurements. Specifically selected probe molecules, whose electronic properties are sensitive to the characteristics of the environment in which they are located, are investigated. In addition, molecules are oriented in the measurement junction to determine the anisotropy of the electrical properties of the molecules.

在该项目中，由化学分部的化学测量和成像计划资助，坦普尔大学设计的埃里克·鲍尔吉特（Eric Borguet）教授并执行了实验，以研究单分子的特征，特别着重于外部物理和化学参数对改变电阻的影响。 为了应对这一挑战，使用最先进的技术研究了其特性取决于其周围环境的目标分子。这项研究促进了我们对传感器和电气设备分子成分的电气的理解。这项工作的更广泛影响包括发现单分子传感器和开关的潜在社会利益，这些传感器和开关可以帮助您将电子设备以及在多学科环境中培训的多元化科学劳动力的教育和发展。此外，通过为坦普尔大学（Temple University）多元化的学生团体提供包括代表性不足的少数民族和第一代大学生的参与者，并允许当地的高中生有机会从事这项研究，准备下一代科学家的准备工作。 该项目的重点是使用扫描隧道显微镜来创建纳米级连接处，该连接可能会捕获单分子进行电测量。研究了特定选择的探针分子，其电子特性对其所在环境的特征敏感。另外，分子在测量连接中定向，以确定分子电性能的各向异性。