基于新型二噻咯并环类弱电子给体的D-A型共轭聚合物光伏材料：分子设计、合成及性质

项目名称： 基于新型二噻咯并环类弱电子给体的D-A型共轭聚合物光伏材料：分子设计、合成及性质

项目编号： No.21274034

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 邱化玉

作者单位： 杭州师范大学

项目金额： 82万元

中文摘要： 太阳能已成为新能源的重要来源之一，太阳能电池的研究因此备受关注。与硅基和其它无机太阳能电池相比，聚合物太阳能电池具有成本低廉，柔性，适合大面积生产等优点。经过十几年的研究，聚合物太阳能电池的效率已经得到了很大的提高，但是离真正的商业化应用还有一定距离。为了提高电池效率，目前研究的重点是高性能聚合物材料的研发，其中一个有效的手段是采用"弱电子给体-强电子受体"的方式来构建新型的D-A型共轭聚合物。本项目将结合申请人课题组已开展的工作，利用有效的合成策略，设计合成一系列新型的二噻咯并苯、二噻咯并萘等弱电子给体，利用这些分子与各种强电子受体构筑D-A型共轭聚合物，研究材料性质和在太阳能电池中的应用，建立构效关系。本项目将展现硅原子在分子功能修饰和性质调控方面的优势，会在弱电子给体-强电子受体共轭聚合物的设计合成、材料构筑、功能开发和器件优化等方面开拓新的研究领域，得到新型高效的聚合物光伏材料。

中文关键词： 噻咯；D-A共轭聚合物；弱电子给体；聚合物太阳能电池；光伏材料

英文摘要： Polymer solar cells (PSC) have attracted an increasing amount of attention in the research community due to the potential advantages of PSC over inorganic-based solar cells, including low-cost fabrication of large-area devices, light weight, mechanical flexibility, and easy tunability of chemical properties of the polymer materials. With the rapid evolution of photovoltaic polymer materials, power conversion efficiency of polymer solar cells has been markedly improved in recent years. However, the efficiency of polymer solar cells can not yet meet the requirements of the real-word application. In order to further improve the efficiency of solar cells, current research emphases are focused on exploring high-performance photovoltaic polymer materials. To gain ideal photovoltaic materials, a "weak donor-strong acceptor" strategy has been proposed to design and synthesize new donor-acceptor conjugated polymers. In this proposal, a series of novel weak donors that are composed of two silole rings fused to benzene or naphthalene rings will be designed and synthesized. Combined with various strong electron acceptors, these silole-containing weak donors will afford an array of efficient donor-acceptor conjugated polymers. Polymer solar cells will be fabricated using the new polymers as key active materials, and the perf

英文关键词： siloles；D-A conjugated polymers；weak electron donor；polymer solar cells；photovoltaic materials