项目名称: 高性能染料敏化太阳电池材料的创新设计与可控制备
项目编号: No.91233207
项目类型: 重大研究计划
立项/批准年度: 2013
项目学科: 一般工业技术
项目作者: 田禾
作者单位: 华东理工大学
项目金额: 300万元
中文摘要: 本项目针对染料敏化太阳电池中的关键光电转换材料,提出新增电荷分离“阱”(“electron trap”)的创新分子设计思路。在传统的D-π-A纯有机敏化染料的基础上,引入另外的强吸电子受体单元,系统优化给体、受体、共轭联接和吸附基团,设计并合成一系列具有创新结构的高性能、低成本的D-A-π-A型有机敏化染料,实现电池光电转化效率10-15%。同时发展新的非共吸附技术制备共敏化DSCs光电器件,并探索自组装和超分子组装结构的敏化太阳电池,以全新的概念和技术制备全色DSCs和光开关型敏化太阳电池。
中文关键词: 染料敏化太阳能电池;染料合成;光稳定性;超分子组装;光开关型材料
英文摘要: This project will develop the new concept “D-A-π-A” organic sensitizers instead of traditional D-π-A ones for highly efficiency organic dye-sensitizing solar cells (DSCs). Remarkably, the incorporated some novel structural low bandgap, strong electron withdrawing unit as additional electron trap would show several favorable characteristics in the areas of light-harvesting and efficiency: i) optimized energy levels, resulting in a large responsive range of wavelengths into NIR region; ii) a very small aggregation trend on thin TiO2 films; iii) an improvement in the electron distribution of the donor unit to distinctly increase the photo-stability of synthetic sensitizers. The goal efficiency of DSCs is expected to be improved up to 10-15%. This project will also explore some novel concepts organic solar cells including supramolecular assembly DSCs, panchromatic DSCs and light-switchable DSCs.
英文关键词: dye-sensitized solar cell;dye synthesis;photo-stability;supramolecular assembly;light-switchable