环境友好纳米粒子表面接枝共轭聚合物的复合材料光伏性质研究

项目名称： 环境友好纳米粒子表面接枝共轭聚合物的复合材料光伏性质研究

项目编号： No.20804008

项目类型： 青年科学基金项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 孙海珠

作者单位： 东北师范大学

项目金额： 20万元

中文摘要： 本项目是纳米光电复合材料领域的前沿课题。在基金的资助下，取得以下进展和成果： (1) 垂直基底生长ZnO纳米棒。系统研究了影响纳米棒直径、生长密度、形貌以及长短的重要因素，阐述了其生长机理。 (2)将聚噻吩以及PPV等重要的共轭聚合物接枝到纳米棒表面，获得了在无毒纳米粒子的表面接枝共轭聚合物的新型光电功能材料。系统研究了纳米棒的形貌以及制备器件的条件对复合材料光电性质的影响，获得了开路电压较高(1.4V)的复合材料。 (3)同时，制备了其它纳米粒子与聚合物的复合材料。由于近几年国际上在该领域的发展比较迅速，我们也比原计划设计和制备了更多种类的复合材料，性质研究也由原来的光电性质研究拓展到生物传感、增透等其它前沿领域。 (4)发表SCI文章12篇，影响因子大于4的9篇，授权中国发明专利1项，出版著作1部，撰写综述1篇，获得奖励2项，参加国内外会议2次。 (5)培养硕士研究生7名，已毕业1名；协助培养博士研究生2名，硕士研究生2名。 (6)在研究中还发现手性纳米粒子与共轭聚合物之间的手性传递会给材料带来更独特的光物理性质，是更值得开展深入研究的前沿课题。本项目完成了预期目标。

中文关键词： 氧化锌; 聚噻吩; 纳米粒子; 共轭聚合物; 光电性质

英文摘要： This project belongs to the front research in the area of optoelectronics nanocomposite. Under the supporting by NSFC, we have obtained following achievements: (1)ZnO nanorods were perpendicularly grown on the substrates.The investigateions about the effect of important factors on the diameter of nanorods, density of growth,morphology and length were carried out. The mechanism of growth was proposed. (2)Conjugated polymers such as P3HT and PPV were graftied on the surface of ZnO nanorods, resulting in the formation of novel optoelectronic composite materials of non-toxicity nanoparticles grafted with conjugated polymers. The effect of ZnO nanorod morphology and conditions of device fabrication on the optoelectronic properties of composite was studied, and the composite with high open-circuit voltage (1.4 V) was obtained. (3)At the same time, other nanoparticle and polymer composites were also prepared. Considered that the rapid development of such composites in the world,we have prepared much more composites than we have planed. Besides the optoelectronic properties, properties such as biosensors as well as anti-reflection in other front area were also studied. (4)12 SCI research papers noted "supported by NSFC" have been published in which the IF of 9 papers is higher than 4. Authorized 1 term investigation patent, published 1 book, wrriten 1 review, obtained 2 awards and taken part in 2 meetings. (5)7 graduate students taked part in this research, and 1 got her Master Degrees. (6)During researching in this project, we also found that the chirality delivery between chiral nanoparticles and chiral polymers wound bring unique photophysical properties, which is a valuble idea to be studied. We have accomplished the project target.

英文关键词： ZnO; polythiophene; nanoparticles; conjugated polymer; optoelectronics properties