共轭高分子/无机半导体一维纳米体相光电异质结的研发及性能研究

项目名称： 共轭高分子/无机半导体一维纳米体相光电异质结的研发及性能研究

项目编号： No.21304024

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 王威

作者单位： 哈尔滨工业大学

项目金额： 25万元

中文摘要： 高分子光电材料的研究对光电领域及光催化技术的发展具有重要意义。构建"给体-受体体相光电异质结"是制备高性能高分子光电材料的最有效方法。为了进一步提高高分子光电材料的性能，我们提出"一维纳米体相光电异质结"的思想，即在一维纳米结构中构建并讨论给体-受体体相异质结。本项目拟以电纺丝技术为支持，寻找在一维微纳米纤维中构建复合均一的、相互渗透的、双连续的共轭高分子（给体）/无机半导体（受体）体相异质结的新方法，并通过对一维体相光电异质结的可控制备研究，微观/宏观结构与光电性能深层次关系研究，以及对具体模型应用过程的电荷作用机理和界面科学问题的深入剖析，最终实现"一维纳米结构"与"体相异质结"的有机结合，将"一维纳米体相光电异质结"思想阐述清晰并推广，为高性能高分子光电材料的发展积累宝贵的经验，为清洁能源利用和环境修复材料开发打下坚实基础。

中文关键词： 异质结；电纺丝；光催化；光电增强；一维材料

英文摘要： The development of photoelectric materials based on polymers is of great importance in the field of photoelectrics and photocatalysis. An encouraging breakthrough in realizing high photoelectric performance of polymeric materials has been achieved by constructing bulk donor-acceptor heterojunction. In order to further improve the performance of the polymeric photoelectric materials, here we proposed a promising idea of "one-dimensional nanostructured bulk-heterojunction (1D BHJ)", which means to construct and study the bulk-heterojunction within a 1D nanostructure. In this project, taking the electrospinning technology as the technical platform, we desire to fabricate uniformly blending, bicontinuous, interpenetrating network of conjugated polymer (donors)/inorganic semiconductors (acceptors) within hybrid nanofibers. Then systematically investigate the following aspects as the controllable synthesis of the 1D BHJ nanofibers, the deeper relationship between the micro/macro-structures and the photoelectric performance, as well as the charge behavior and interface science during the specific model application process. We finally aimed at realizing the organic combination of the "1D nanostructure" and "BHJ", making clear and then popularizing the idea of "1D BHJ". This project will provide precious data for the dev

英文关键词： heterojunction；electrospinning；photocatalysis；photoelectronic enhancement；one-dimensional structure