染料敏化太阳电池中准固态陷光电解质的研究

项目名称： 染料敏化太阳电池中准固态陷光电解质的研究

项目编号： No.21273242

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 潘旭

作者单位： 中国科学院合肥物质科学研究院

项目金额： 79万元

中文摘要： 染料敏化太阳电池(DSC)由于其高效、廉价等原因而受到研究人员及工业界的关注。在DSC中，电解质是其中的一个重要组成部分并直接影响电池的性能及稳定性。然而电解质中I3-会吸收一定的穿透电解质层的可见光从而造成能量损失；同时，由于染料吸附的不均匀性等问题，一部分入射光还会直接穿透电池，造成光捕获率的降低。如果我们能够采用某种具有光电响应功能的材料重组电解质层，达到抑制能量损失的目的，将无疑使DSC的效率取得突破。基于这个思想，我们将在本项目中尝试开发新型电解质体系，我们将采用陷光材料反射透射过电解质层的入射光，增加入射光光程，提高光捕获率。我们将通过研究材料结构及晶体形貌，研究材料特性对电池性能的影响，达到提高电池效率的目的。

中文关键词： 染料敏化；太阳电池；电解质；陷光结构；液晶

英文摘要： Dye-sensitized solar cells (DSC) are attracting both academic and industrial interest owing to their high-efficiency and potential low-cost. The electrolyte is the one of the most-important components of a DSC, and directly influences their performance and stability. However, I3- in the electrolyte will absorb visible light, which results in energy loss. Furthermore, due to the inhomogeneous dye distribution, a certain part of the incident light transmits through the photo anode, which decreases the light-harvesting efficiency. If electrolyte is composed by photocurrent response material and can depress the energy loss , which will undoubtedly give a big breakthrough on the efficiency of the solar cell. Based on this conception, we try to explore a new kind of electrolyte in dye-sensitized solar cells.In this application,a kind of light trapping material will be tried to insert into electrolyte. By this material, the transmit light is trapped inside the electrolyte and reflect to the dye, which will enhance the incident optical path length, resulting in a higher light-harvesting efficiency.In our research, the molecular structure and the crystallite morphology of light trapping material concerning with the efficiency of solar cell will be studied to clear the light trapping mechanism and inhance the efficiency o

英文关键词： dye-sensitized；solar cell；electrolyte；light-trapping；liquid crystal