新型高效染料敏化太阳能电池准固态电解质研究

项目名称： 新型高效染料敏化太阳能电池准固态电解质研究

项目编号： No.51203161

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 有机高分子材料学科

项目作者： 苗青青

作者单位： 中国科学院过程工程研究所

项目金额： 25万元

中文摘要： 染料敏化太阳能电池被认为是可取代传统硅太阳能电池的新一代太阳能电池。要实现其产业化，必须解决电解质长期稳定性这一瓶颈问题。准固态电解质不仅具有高的光电转换效率,且可克服液态电解质的泄漏难题, 延长电池寿命，但目前仍存在导电率较低及光电转换效率需进一步提高等制约因素。为解决这些关键问题，申请者以开发具有高导电率的新型高效聚合物为切入点，构建高效稳定的准固态染料敏化太阳能电池。本项目拟设计合成具有高导电率的聚合物，并与其它聚合物共聚以改善聚合物性能，结合新型无机纳米粒子，应用于染料敏化太阳能电池准固态电解质，对其进行系统研究和优化。同时研究不同聚合物骨架结构对所构建器件光电性能的影响，揭示聚合物结构和器件光电转换效率之间的关系，为构建高效稳定的准固态电解质提供理论依据和应用基础。

中文关键词： 高导电率；准固态电解质；染料敏化太阳能电池；高效；稳定

英文摘要： As a new type of photoelectric device, dye-sensitized solar cell (DSC) is considered as an alternative to silicon solar cells. In order to commercialize the DSC successfully, the problem of the electrolyte must be resolved. Quasi-solid-state electrolyte can not only obtain the high efficiency, but also overcome the disadvantages of liquid electrolyte, such as the volatile nature and leakage of the organic solvents. However, the low conductivity of charge in the quasi-solid-state electrolyte affects the conversion efficiency of the cell. To solve this problem, in this work, the polymers with high conductivity were applied to quasi-solid-state electrolyte of DSC with the aim of obtaining high-efficient and stable DSC. Furthermore, the modifications of the conductive polymers were also studied, such as the copolymerization, synthesis of the composite with inorganic nanoparticals. The devices were optimized and the photoelectrichemical properties were systematically investigated. The effects of the structures of polymers on the efficiencies of devices were studied and the relationship between them was revealed. This work should have some theoretical and practical implications for improving the photovoltaic performance of quasi-solid-state DSCs.

英文关键词： High conductivity；quasi-solid-state electrolytes；dye-sensitized solar cells；high-efficiency；stable