CAREER: Molecular Tools to Tune the Structure-Function Properties of Nanoscale Objects by Reconfiguration of pi-Conjugated Superstructures

职业：通过重新配置 pi 共轭超结构来调整纳米级物体的结构功能特性的分子工具

• 批准号: 2401869
• 负责人: Jean Hubert Olivier
• 金额: $ 65.87万
• 依托单位: University of New Mexico
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-11-15 至 2025-01-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2401869&HistoricalAwards=false
• 关键词: CAREER; Molecular; Tools; Tune; Structure

The research group of Jean-Hubert Olivier at The University of Miami seeks to develop new strategies to manipulate the interactions of organic molecules and polymers in nanoscale architectures (with dimensions of 1/1,000,000 meter). The overarching goal is to understand how one can precisely control assembly pathways to reconfigure the structure of organic materials and promote efficient energy transport. The results of this fundamental research have implications in solar cell design and optoelectronic devices. This project also nurtures the development of training platforms to prepare students to tackle social challenges and complex scientific problems. To achieve these goals, the Olivier group develops a Science Discovery Program: “Create and Assemble: How Nature Builds “Stuff””. The program seeks to ignite a curiosity for science and technology in younger generations, creates an environment that promotes critical thinking, motivates students across all age groups to pursue scientific careers, and sensitizes a more mature audience to the extent to which science and education can greatly contribute to a more sustainable future.With the support of the Macromolecular, Supramolecular, and Nanochemistry Program of the NSF Division of Chemistry, this project develops a new set of tools to navigate the aggregation free-energy landscape and create energetically trapped architectures equipped with structure-function properties unattainable at equilibrium. The Olivier groups seeks to establish rules and principles to manipulate the electronic structures of π-conjugated building blocks and form out-of-equilibrium states (n-doped) to tune the non-covalent interactions between superstructure precursors. From solution-phase studies that exploit spectroscopy and electrochemistry, this project seeks to understand how reconfigured superstructures promote exciton delocalization and transport. Furthermore, strategies are being developed to “lock-in” supramolecular architectures both at equilibrium, and when placed out-of-equilibrium (n-doped). Well-defined nanoscale objects created in this manner unearth a new understanding of the electronic properties enforced by electronically perturbed out-of-equilibrium states. Rules and principles are elucidated to enable, at the solid/liquid interface, the formation of hierarchical nanostructures derived from energetically trapped superstructures.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.

迈阿密大学 Jean-Hubert Olivier 的研究小组致力于开发新的策略来操纵纳米级结构（尺寸为 1/1,000,000 米）中有机分子和聚合物的相互作用。总体目标是了解如何精确地控制有机分子和聚合物的相互作用。控制组装途径以重新配置有机材料的结构并促进有效的能量传输这项基础研究的结果对太阳能电池设计和光电设备具有重要意义。为了实现这些目标，奥利维尔小组开发了一个科学发现计划：“创造和组装：大自然如何构建“东西””。该计划旨在激发年轻人对科学和技术的好奇心。创造一个促进一代人批判性思维的环境，激励各个年龄段的学生追求科学事业，并使更成熟的受众认识到科学和教育可以为更可持续的未来做出巨大贡献。作为美国国家科学基金会化学部的高分子、超分子和纳米化学项目，该项目开发了一套新的工具来导航聚集自由能景观，并创建具有平衡状态下无法实现的结构功能特性的能量捕获结构。建立规则和原则来操纵 π 共轭结构单元的电子结构并形成非平衡态（n 掺杂）以调整之间的非共价相互作用通过利用光谱学和电化学的溶液相研究，该项目旨在了解重新配置的超结构如何促进激子离域和传输。此外，正在开发在平衡状态和放置状态下“锁定”超分子结构的策略。以这种方式创建的明确定义的纳米级物体揭示了对电子扰动所强制的电子特性的新理解。阐明了在固/液界面上形成由能量捕获的上层结构衍生的分层纳米结构的规则和原则。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准。