半导体性单壁碳纳米管/共轭聚合物复合薄膜及其光伏特性研究

项目名称： 半导体性单壁碳纳米管/共轭聚合物复合薄膜及其光伏特性研究

项目编号： No.61274130

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 李红波

作者单位： 中国科学院苏州纳米技术与纳米仿生研究所

项目金额： 80万元

中文摘要： 作为新一代半导体纳米材料的典型代表，高载流子迁移率、大长径比以及可调制电学、光学等性质的半导体性单壁碳纳米管，在高性能电子器件领域备受瞩目。但是当前合成技术制备的碳纳米管均是不同导电属性的碳管混合物，极大地限制了其应用。尤其在有机/聚合物光伏电池的应用中，半导体碳管的优异性能并没有得到充分发挥，光电转换效率亟待提高。本项目中，我们提出以高纯度半导体性碳管为受体材料，通过对半导体碳纳米管纯度、长度、能级以及化学修饰的控制，着重研究半导体碳管上述性质对其与聚合物复合薄膜结构以及光电性能的影响。进一步地，通过半导体碳纳米管结构优化、与聚合物的能级匹配以及三维互穿双连续薄膜网络的构筑，探索提高碳纳米管/聚合物有机/无机杂化光伏电池光电转化效率的有效途径。此项目的开展，对推动碳纳米管/聚合物光伏电池器件的发展具有积极的意义。

中文关键词： 半导体性单壁碳纳米管；共轭聚合物；光伏电池；光电转换；

英文摘要： Semiconducting single-walled carbon nanotubes (s-SWNTs) have high mobility, large length-diameter ratio as well as modulated electronic and optical properties, which are considered to be among the best candidates for next-generation semiconducting nanomaterials, promising many potential applications in nanoelectronics and thin-film devices. Unfortunately, SWNTs prepared by current synthetic methods are a mixture with different electronic structures, which greatly limits their applications in high-performance devices. Especially for the application in organic/polymer photovoltaic cells,s-SWNTs haven't exerted their excellent properties as researchers expect, and only low photoelectric transformation efficiencies are presented. There are still some challenges to be resoved. In this project, through employing high-purity s-SWNTs as the acceptor, controlling their purity, length, engery level and chemical modification, we will primary investigate the effects of s-SWNTs on the polymer thin-fim structures and optoelectronic properties. Furthermore, through optimizing SWNT structure, perfectly matching their enery level and building three-dimensional interpenatrating networks, we will explore the effective way to increase photoelectric transformation efficiency of SWNT/polymer organic/inorganic photovoltaic cells. Thi

英文关键词： semiconducting single-walled carbon nanotubes；conjugated polymers；photovoltaic cells；photoelectric conversion；