基于新型聚合物/无机杂化空穴传输材料的高效钙钛矿太阳能电池研究

项目名称： 基于新型聚合物/无机杂化空穴传输材料的高效钙钛矿太阳能电池研究

项目编号： No.61504053

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 姚凯

作者单位： 南昌大学

项目金额： 21万元

中文摘要： 实现低成本、高稳定性且可溶液加工的高效空穴传输材料是钙钛矿太阳能电池大规模商业化应用所面临的主要问题，然而目前广泛应用的空穴传输材料成本高、稳定性差且能级相对固定。本项目以高导电率的无机材料为基体，键和含特定官能团的聚三苯胺类有机材料的方式制备新型聚合物/无机杂化空穴传输材料，同时考虑到钙钛矿材料能级的多样性，设计并合成能级可调的双官能化共聚三苯胺，制备一系列不同功函数的杂化空穴传输材料。考察在不同空穴传输材料表面钙钛矿晶体的生长情况和结晶形貌变化，理解不同界面的表面结构对钙钛矿晶体生长及薄膜均匀性的作用机理，获得高结晶度且无孔隙钙钛矿薄膜；考察官能化聚三苯胺对无机空穴传输材料表面缺陷和功函数的修饰，理解聚三苯胺的引入对空穴在界面传输和收集的调控机制，最大可能减少电荷和能量的损失并提高器件光电性能。本项目为低成本制备高效钙钛矿太阳能电池提供了一类通用的新型杂化空穴传输材料。

中文关键词： 钙钛矿太阳能电池；空穴传输材料；有机/无机杂化；聚三苯胺；表面修饰

英文摘要： The preparation of efficient and stable hole-transporting materials using solution-processed processing at low cost is one of the main issues for further large-scale commercial application for perovskite solar cells. But the commonly used hole-conductor has high cost and low stability, as well as the relatively fixed energy levels. In this project, a novel polymeric/inorganic hybrid hole-transporting materials will be prepared based on high mobility inorganic material bounded with functionalized poly-triarylamine. In consideration of the energy difference of perovskite materials, we will design and synthesis dual-functionalized poly-triarylamine with tunable energy level to meet the requirement of various perovskite system. We will investigate the crystalline growth and morphology of perovskite film on various hole-conductors surface. And we can achieve finely crystallized and pore-free perovskite films by figuring out how the interface structure influence the crystallization and uniformity during film formation process. Meanwhile, the surface modification using dual-functionalized poly-triarylamine can not only passivate surface trap states but also shift the energy offset of the inorganic hole-conductor, which can be used to study the effect of poly-triarylamine incorporation on hole transport and collection at the interface. Therefore, we can depress the charge and energy loss with the aim of improving device performance. This work will provide a series of novel and general hybrid hole-transporting materials for fabricating efficient perovskite solar cell at low cost.

英文关键词： perovskite solar cell ;hole transporting materials;organic/inorganic hybrid;poly-triarylamine;sueface modification