Conjugated and redox active polymers and hybrid materials

共轭和氧化还原活性聚合物和杂化材料

• 批准号: RGPIN-2022-04319
• 负责人: Seferos, Dwight
• 金额: $ 6.7万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=748365
• 关键词: Conjugated; redox; active; polymers; hybrid

This application describes three facets of our research program. The first outlines new synthetic methods and designs of conjugated polymers. The second will discuss projects that merge conjugated organic materials and 2D perovskites. The final section will describe our continuing efforts in the design of polymers for energy storage. These three areas describe a continuum of a program focused on materials chemistry that has involved 58 trainees in the last 6 years, and the ambition to be even more productive in the future. First, I discuss our recent progress in the controlled synthesis of conjugated polymers. In the last 2 years, we have demonstrated new reaction methodologies to produce mono disperse (no dispersity) oligomers in a homogeneous manner using stoichiometric reagents and temperature cycling. Our short-term goals are to expand this method for new monomer types, including the challenging heavy atom variants. In the longer term, we will utilize this method to develop the sequence control of complex conjugated high oligomers. We will study the redox doping of these polymers as well as their self- assembly behaviour. We also plan to collaborate with other groups that are poised to study the ultrafast dynamics and thermoelectric performance of these unique well-defined polymer semiconductors. Second, I disclose some very new and different work in the area of 2D organic-inorganic perovskites. Here, we are building conjugated molecular systems to program the assembly and optoelectronic properties in hybrid solids. In particular, we are using a conjugated molecular bridge approach to wire up the stacks of 2D materials and also provide donor-acceptor dipoles to govern the optoelectronic properties of the entire solid. In the longer term we plan to develop a variety of devices comprising these materials including LEDs, lasers, photodetectors and electrooptic converters. Finally, I focus on the design, synthesis and testing of polymers in energy storage devices. There is no question that the world will need enormous numbers of rechargeable batteries over the next 10 years. Aside from electric vehicles and grid-scale storage, many other uses such as electric aviation, watercrafts, and integrated electronics will emerge and/or grow rapidly during the foreseeable future. I describe two new areas. The first focuses on polymer-based cathodes. The second focuses on unique designs for redox active small molecules, designed for high stability. Overall, these projects are expected create a rich training environment where students and postdoctoral colleagues can learn from one another, share ideas, contribute to each other's projects and enjoy their time in our group. I also delineate many of the plans that my group has initiated to increase our contributions to equity, diversity and inclusion. This includes a group policy on EDI that professes inclusion as an equally important principal to our science goals.

该应用程序描述了我们研究计划的三个方面。第一部分概述了共轭聚合物的新合成方法和设计。第二个将讨论融合共轭有机材料和二维钙钛矿的项目。最后一部分将描述我们在储能聚合物设计方面的持续努力。这三个领域描述了一个以材料化学为重点的项目的连续体，该项目在过去 6 年里吸引了 58 名学员，并希望在未来提高生产力。 首先，我讨论了我们在共轭聚合物的受控合成方面的最新进展。在过去的两年中，我们展示了使用化学计量试剂和温度循环以均匀方式生产单分散（无分散）低聚物的新反应方法。我们的短期目标是将这种方法扩展到新的单体类型，包括具有挑战性的重原子变体。从长远来看，我们将利用这种方法来开发复杂共轭高寡聚物的序列控制。我们将研究这些聚合物的氧化还原掺杂及其自组装行为。我们还计划与其他团队合作，研究这些独特的明确聚合物半导体的超快动力学和热电性能。 其次，我披露了二维有机-无机钙钛矿领域的一些非常新的和不同的工作。在这里，我们正在构建共轭分子系统来编程混合固体中的组装和光电特性。特别是，我们使用共轭分子桥方法来连接二维材料堆叠，并提供供体-受体偶极子来控制整个固体的光电特性。从长远来看，我们计划开发各种包含这些材料的设备，包括 LED、激光器、光电探测器和电光转换器。 最后，我重点关注储能器件中聚合物的设计、合成和测试。毫无疑问，未来 10 年世界将需要大量的可充电电池。除了电动汽车和电网规模存储之外，电动航空、船舶和集成电子产品等许多其他用途也将在可预见的未来出现和/或快速增长。我描述了两个新领域。第一个重点是基于聚合物的阴极。第二个重点是氧化还原活性小分子的独特设计，旨在实现高稳定性。总的来说，这些项目预计会创造一个丰富的培训环境，让学生和博士后同事可以互相学习、分享想法、为彼此的项目做出贡献并享受在我们小组的时光。我还概述了我的团队发起的许多计划，以增加我们对公平、多样性和包容性的贡献。这包括关于 EDI 的团体政策，该政策声称包容性是我们科学目标的同等重要原则。