New Redox-Active Organic pi-Conjugated Building Blocks for Functional Nanoscale Materials and Devices

用于功能纳米材料和器件的新型氧化还原活性有机π共轭结构单元

• 批准号: RGPIN-2016-04707
• 负责人: Zhao, Yuming
• 金额: $ 3.35万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=615254
• 关键词: New; Redox; Active; Organic; pi

The rapid development of organic pi-conjugated materials has led to great advancement in cutting-edge technologies, such as energy storage and conversion, active displays, chemical and biological sensing, as well as nanoscale electronic and photonic devices. The advantages of organic materials lie in their easily tailored properties through chemical modifications and the low costs for material processing and device fabrication. In our recent research supported by NSERC Discovery Grant, significant breakthroughs have been made in the design and synthesis of a variety of redox-active conjugated molecules and relevant macromolecuar systems. These materials have thus offered us versatile molecular “building blocks” to prepare novel nanoscale materials and to assemble advanced molecular devices. In this proposal, we aim to further the technological development of these new materials through a “rational molecular design” strategy, based upon our established knowledge and expertise. Experimentally, the research will first embark on advanced organic synthesis to produce functional materials with well-defined molecular structures, controllable electronic and redox properties, and programmable responsiveness to external stimuli. Using various modern synthetic methodologies, we will prepare redox-active tetrathiafulvalene (TTF) derivatives, pi-conjugated polymers (CPs), and functionalized polyaromatic hydrocarbons (PAHs). These compounds will serve as functional building blocks to generate nanoscale materials or devices featuring micro/mesoscopic ordering, enhanced optoelectronic performances, and controllable supramolecular behavior. The properties of the new materials to be developed will be systematically investigated by state-of-the-art characterization methods, along with theoretical modeling (e.g., ab initio and density functional theory calculations) in order to gain deeper insight into the fundamental structure-property relationships. Overall the proposed research is expected to not only contribute transformative knowledge to fundamental science, but also deliver innovative concepts and methodologies for applications in organic semiconductors, selective sorption materials, efficient chemo-/biosensors, and other related fields. This program is multidisciplinary in nature and will consolidate extensive collaborations with other researchers on both national and international levels. In terms of HQP training, implementation of this proposal will create a solid platform for training numerous undergraduate and graduate students, enabling them to fill high-demand roles in the high-tech workforces in Canada.

有机PI偶联材料的快速开发已导致尖端技术的发展，例如储能和转换，主动显示，化学和生物学传感器以及纳米级电子和光子设备。有机材料的优势在于通过化学修改和材料加工和设备制造的低成本，在其易于量身定制的特性中。在NSERC Discovery Grant支持的最新研究中，在设计和合成各种氧化还原活性共轭分子和相关的大分子系统方面取得了重大突破。因此，这些材料为我们提供了多功能的分子“构建块”，以准备新的纳米级材料并组装晚期分子设备。 在这项建议中，我们旨在根据我们既定的知识和专业知识，通过“合理的分子设计”策略来进一步发展这些新材料的技术开发。在实验上，该研究将首先开始进行晚期有机合成，以生产具有明确定义的分子结构，受控电子和氧化还原特性以及对外部刺激的可编程响应性的功能材料。使用各种现代合成方法，我们将制备氧化还原活性四藻烯（TTF）衍生物，PI结合聚合物（CPS）和功能化的多芳族烃（PAHS）。这些化合物将用作功能性构建块，以生成具有微/介镜订购，增强的光电性能和受控超分子行为的纳米级材料或设备。要开发的新材料的特性将通过最先进的表征方法进行系统地研究，以及理论建模（例如，从头开始和密度功能理论计算），以便深入了解基本的结构 - 性关系关系。总体而言，拟议的研究不仅有望为基本科学贡献变革性知识，而且还为有机半导体，选择性焊料材料，有效的化学化学/生物传感器和其他相关领域的应用提供了创新的概念和方法。该计划本质上是多学科的，将巩固与其他研究人员在国家和国际层面上的广泛合作。在HQP培训方面，该建议的实施将创建一个可靠的平台，以培训众多本科生和研究生，从而使他们能够在加拿大高科技劳动力中填补高需求的角色。