Ultra-Long Polyradicaloid Wires for Single-Molecule Electronics

用于单分子电子学的超长多自由基线

• 批准号: 2204008
• 负责人: Colin Nuckolls
• 金额: $ 45万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-08-01 至 2025-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2204008&HistoricalAwards=false
• 关键词: Ultra; Long; Polyradicaloid; Wires; Single

With support from the Chemical Structure, Dynamics & Mechanisms-B Program of the Chemistry Division, Professor Colin Nuckolls of the Department of Chemistry at Columbia University will test the hypothesis that open-shell molecules can be used to form molecular wires of virtually any length. These highly conductive molecular wires, have the potential to connect functional molecular electronics (e.g. rectifiers, switches, etc.) to microfabricated electrodes, thus demonstrating a path for integrating molecular electronics and existing circuitry manufacturing. The proposal contains technological broader impacts because it pioneers a new approach to the realistic preparation of single-molecule devices that could be useful across many established and emerging technologies. Beyond the technological broader impacts, this proposal aims to increase the number of scientists as well as bridge related fields with an integrated science/educational program that spans K-8 outreach, curriculum development, and research training for undergraduate, graduate, and post-doctoral scientists. This proposal outlines a new approach to the preparation of ultra-long polyradicaloid molecular wires that become more conductive at longer lengths. Professor Nuckolls and his research group will produce long molecular wires that can be used to interconnect single-molecule elements to carbon nanotube electrodes. Through this proposal, they will synthesize air-stable polyradicaloid wires that can be functionalized and integrated into test structures. Furthermore, the proposed studies will modify the electronic couplings of these wires through their synthetic design. Finally, the studies outlined in the proposal will enable single molecule electrical measurements from these polyradicaloid wire interconnects.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在化学系化学结构、动力学和机理b项目的支持下，哥伦比亚大学化学系的Colin Nuckolls教授将测试开壳分子可以用来形成几乎任何长度的分子线的假设。这些高导电性分子线具有将功能分子电子器件（如整流器、开关等）连接到微加工电极的潜力，从而展示了将分子电子器件与现有电路制造集成的途径。该提案包含了更广泛的技术影响，因为它开创了一种新的方法来实际制备单分子器件，这种方法可以在许多成熟的和新兴的技术中使用。除了更广泛的技术影响之外，该提案旨在增加科学家的数量，并通过综合科学/教育计划（涵盖K-8扩展，课程开发以及本科生，研究生和博士后科学家的研究培训）架起相关领域的桥梁。该提案概述了一种制备超长多根碱分子线的新方法，这种分子线在更长的长度上变得更导电。Nuckolls教授和他的研究小组将生产长分子线，可用于将单分子元素与碳纳米管电极互连。通过这个提议，他们将合成空气稳定的多根碱线，可以功能化和集成到测试结构中。此外，所提出的研究将通过它们的合成设计来修改这些导线的电子耦合。最后，提案中概述的研究将使这些多根碱线互连的单分子电测量成为可能。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。