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: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=709434
• 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π共轭材料的快速发展带动了能量存储和转换、主动显示、化学和生物传感以及纳米级电子和光子器件等前沿技术的巨大进步。在我们最近由 NSERC 发现资助支持的研究中，我们在各种氧化还原活性共轭分子和相关分子的设计和合成方面取得了重大突破。大分子系统。因此，材料为我们提供了多功能的分子“构件”来制备新型纳米材料和组装先进的分子器件。 在本提案中，我们的目标是通过“合理的分子设计”策略进一步推动这些新材料的技术开发，在实验上，该研究将首先进行先进的有机合成，以生产具有良好性能的功能材料。利用各种现代合成方法，我们将制备氧化还原活性四硫富瓦烯（TTF）衍生物、π共轭聚合物（CP）和功能化分子结构、可控电子和氧化还原特性以及对外部刺激的可编程响应。这些化合物将作为功能构件来生成具有微米/介观有序性、增强的光电性能和可控超分子行为的纳米级材料或器件。国家将系统地研究所开发的新材料的特性。最先进的表征方法以及理论建模（例如从头算和密度泛函理论计算），以便更深入地了解基本的结构-性能关系。拟议的研究不仅有望转化对基础科学有贡献的知识，而且还为有机半导体、选择性吸附材料、高效化学/生物传感器和其他相关领域的应用提供创新的概念和方法。将巩固与国内和国际层面其他研究人员的广泛合作。在 HQP 培训方面，该提案的实施将为培训众多本科生和研究生创造一个坚实的平台，使他们能够填补高科技领域的高需求职位。加拿大的劳动力。