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.

这个应用程序描述了我们的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。第二个将讨论合并共轭有机材料和2D钙钛矿的项目。最后一节将描述我们在设计储能聚合物方面的持续努力。这三个领域描述了一个专注于材料化学的连续计划，在过去的6年中有58名学员参与，以及未来更有成效的雄心。 首先，我讨论了我们在共轭聚合物的控制合成方面的最新进展。在过去的2年中，我们已经证明了新的反应方法，以均匀的方式使用化学计量试剂和温度循环来生产单分散（无分散性）低聚物。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低聚物的序列控制。我们将研究这些聚合物的氧化还原掺杂以及它们的自组装行为。我们还计划与其他准备研究这些独特的定义明确的聚合物半导体的超快动力学和热电性能的团队合作。 其次，我公开了在2D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，以编程混合固体中的组装和光电特性。特别是，我们正在使用共轭分子桥方法来连接2D材料的堆叠，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，我专注于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的存储，许多其他用途，如电动航空，船舶和集成电子产品将出现和/或在可预见的未来迅速增长。我描述了两个新的领域。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，这些项目预计将创造一个丰富的培训环境，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，并享受他们在我们小组的时间。我还描述了我的小组为增加我们对公平、多样性和包容性的贡献而发起的许多计划。这包括一项关于EDI的集团政策，该政策声称包容性是我们科学目标的同等重要的原则。