基于纯有机染料及静电喷雾法的染料敏化太阳能电池研究

项目名称： 基于纯有机染料及静电喷雾法的染料敏化太阳能电池研究

项目编号： No.61474064

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 密保秀

作者单位： 南京邮电大学

项目金额： 80万元

中文摘要： 含重金属的配合物染料虽然是目前染料敏化太阳能电池（DSSC）中的主流光敏剂，但是该类材料中的金属资源匮乏，材料制备成本昂贵，不利于大批量生产。不含金属的纯有机染料由于来源丰富、分子结构多样化、易提纯和对环境污染小等优点具有很大的潜在应用价值。但目前基于纯有机染料的DSSC性能还不能满足产业化的需要，亟待研发。本项目拟引入高度平面化的julolidine和高度空间立构的六苯基异吲哚基团作为给体，发展新型纯有机DSSC光敏材料。同时，基于静电喷雾法制备DSSC器件。项目拟展开对该类材料的设计、合成、表征以及光伏器件方面的研究。在研究材料构象与性能关系的同时，发展效率高、稳定性好、生产工艺简单、环境友好的光伏器件，形成染料敏化太阳能电池领域的知识产权。另一方面，项目拟针对染料以及纳米TiO2复合染料的静电喷雾制备进行探索研究。

中文关键词： 太阳电池；有机光电材料；染料敏化；静电喷雾；TiO2光阳极

英文摘要： Currently, dyes of heavy metal complexes are the main stream photo sensitizers in dye sensitized solar cell (DSSC) due to their high device efficiency. However, metals inside the dyes for DSSC are rare elements in nature, thus material supply is extremely insufficient for mass production. Metal-free organic dyes have many merits, such as abundant in nature, tunable in molecular structure, easy purification and low environmental pollution, leading to promising application. At present, the performance of DSSCs based on metal-free organic dyes can't meet the requrement for commercialization, demanding further development both in aspects of efficiency and stability. This project aims at improving the performance of pure organic dyes based DSSC by new dye design as well as optimizing the fabrication procedure of electrospray for photoanode TiO2. We plan to introduce either high planar group of julolidine or highly space steric function group of isoindole derivatives into the donor part of dye, which have not been studied as DSSC dyes yet. Firstly, we will focus on design, synthesis, characterization of new metal free dyes. Then, by studying the relationship between molecular structure and material property, as well as device performance and device physics, DSSC devices with high efficiency and good stability are expected to achieve. In addition, we will further optimized electrospray fabrication of photoanode TiO2, disclosing device physics related to electrospray. Finally, electrospray of dyes as well as dye-grafted nano TiO will be tried in the fabrication of DSSC device.

英文关键词： solar cell;organic optoelectronic materials;dye sensitized;electrospray;TiO2 photoanode