高性能导电聚噻吩衍生物热电材料的制备及性能

项目名称： 高性能导电聚噻吩衍生物热电材料的制备及性能

项目编号： No.51463008

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 徐景坤

作者单位： 江西科技师范大学

项目金额： 50万元

中文摘要： 热电材料作为环境友好型清洁能源在温差发电和制冷方面具有广阔应用前景，符合国家新能源发展重大战略需求。聚噻吩是一类重要的结构型导电聚合物和新型有机热电材料，具有优良的环境稳定性和高Seebeck系数。2008年以来我们关于聚噻吩衍生物热电性能的开拓性工作发表后促进了国际上有机热电材料的再认识，引发了国际上有机热电材料研究的新热情。但到目前为止在高性能导电聚噻吩热电材料的制备、材料结构与性能的关系、外场对材料热电性能的影响研究不足。本项目拟以新型高性能聚噻吩衍生物为研究重点，制备一系列新型聚噻吩衍生物热电材料；探索聚噻吩材料的分子结构、制备方法、聚集态结构以及外场调控如电场和磁场等对材料热电性能的影响；借此摸索聚噻吩类热电材料载流子热电转换机制，建立部分理论模型，争取阐明聚噻吩材料结构和热电性能之间的相关规律，为有机热电材料的潜在应用提供理论依据。

中文关键词： 导电聚合物；聚噻吩衍生物；热电材料；电导率；赛贝克系数

英文摘要： Thermoelectric materials as an environmentally friendly clean energy has broad application prospect in thermoelectric power generation and refrigeration, meet the needs of country's new energy development strategic. Polythiophene is an important kind of structural conducting polymer, as novel organic thermoelectric materials have excellent environmental stability and high Seebeck coefficient. Since 2008, we reported the thermoelectric properties of polythiophene derivatives, as a pioneering work have promoted the recognition of organic thermoelectric materials, and stimulated the new enthusiasm of research on organic thermoelectric materials internationally. However, until to now, the research on preparation, structure, properties of high performance polythiophene thermoelectric materials and effect of external factors on the thermoelectric properties of materials is inadequate. In this study, novel high performance poly thiophene derivatives as the focus of research, we will prepare a series of novel polythiophene derivatives thermoelectric material; explore the molecular structure, preparation methods, aggregation structure and effect of external factors such as electric and magnetic fields on the thermoelectric properties; explore the carrier thermoelectric conversion mechanism of polythiophenes thermoelectric material, establish theoretical model, clarify the related regulation between thermoelectric properties and structure of polythiophenes material, provide theoretical basis for the potential application of organic thermoelectric materials.

英文关键词： conducting polymers;polythiophene derivatives;thermoelectric materials;electrical conductivity;Seebeck coefficient