高效率单结和叠层全塑料太阳能电池的研究

项目名称： 高效率单结和叠层全塑料太阳能电池的研究

项目编号： No.21474035

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 周印华

作者单位： 华中科技大学

项目金额： 80万元

中文摘要： 有机聚合物太阳能电池具有柔性好、制备工艺简单的优点而受到人们的广泛关注。不需真空过程、全溶液制备、不使用铟锡氧化物（ITO）电极是低成本有机聚合物太阳能电池的发展方向。全塑料太阳能电池，其基底、电极、光活性层均由有机聚合物组成，可全溶液制备、柔性好，符合低成本太阳能电池的条件。目前，全塑料太阳能电池的能量转换效率为3%左右。本项目拟围绕如何提高全塑料太阳能电池的效率、进一步简化电池结构及其大面积化开展研究工作，具体包括：（1）引入高性能窄带隙聚合物半导体光活性层，结合光学模拟，发展高效单结和叠层全塑料太阳能电池；（2）通过掺杂含胺小分子和聚合物材料，发展低功函数导电聚合物溶液配方，以简化全塑料太阳能电池的结构及制备过程；（3）将全塑料太阳能电池与可溶液制备的Ag网格、薄膜相结合，构筑大面积柔性有机太阳能电池。通过以上研究，实现能量转换效率在6-8%的低成本有机太阳能电池。

中文关键词： 导电聚合物电极；全塑料太阳能电池；叠层太阳能电池；能量转换；低功函数

英文摘要： Organic and polymer solar cells have been attracting great attention due to their advantage of light weight, excellent mechanical flexibility and easy processing. Vacuum-free, indium tin oxide-free, fully solution-processed organic and polymer solar cells are ideal in term of the fabrication and materials cost. All-plastic solar cells, comprising plastic substrates, polymer electrodes and plastic active layers, are fully solution-processed and meet the requirements for the low cost. The all-plastic solar cells have been recently developed and the power conversion efficiency is still low about 3%. To advance the industrialization of the low-cost all-plastic solar cells, this proposal will focus on how to improve the power conversion efficiency, how to further simplify the device structure and lower the fabrication cost, and how to realize large-area solar cells based on the all-plastic structure. Details are included as follows: (1) To develop efficient single-junction and tandem all-plastic solar cells based on high-performance low band-gap polymers and with the help of optical simulation; (2) To develop low-work function conducting polymer formula by doping amine-containing small molecules and polymers to simplify the device structure and fabrication process; (3) To fabricate low cost large-area organic and polymer solar cells based on all-plastic solar cells by using solution-processed silver lines, grids and films. With the study above, the power conversion efficiency of 6-8% is expected for low-cost and easy-processing organic solar cells.

英文关键词： conducting polymer electrode;all-plastic solar cells;tandem solar cells;energy conversion;low work function