高效率钙钛矿型太阳能电池的稳定性及其调控若干基础问题的研究

项目名称： 高效率钙钛矿型太阳能电池的稳定性及其调控若干基础问题的研究

项目编号： No.91433205

项目类型： 重大研究计划

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 孟庆波

作者单位： 中国科学院物理研究所

项目金额： 350万元

中文摘要： 低成本高效率钙钛矿型太阳能电池（PSCs）是目前国际上的研究热点，但PSCs稳定性问题已经成为制约此类电池发展的瓶颈。本项目直面这一根本问题，拟深入研究敏感环境条件下PSCs的化学稳定性基础问题，其中包括：水氧气氛、紫外光照、酸碱作用、湿法制备、受热或温度变化等敏感环境条件下钙钛矿材料的化学稳定性及其光电转换过程电子转移作用机制等。通过上述研究揭示钙钛矿材料的晶体结构与界面缺陷等变化与材料的稳定性、PSCs化学稳定性之间的内在联系和规律。在此基础上，开展PSCs稳定性调控及其作用机制的研究，将重点研究钙钛矿成膜前后的界面修饰及其调控稳定性的作用机制，探索具有调控稳定性作用的新型钙钛矿材料和器件结构，发展界面修饰内封装+电极外的薄膜封装+PSC器件的盔式封装三道防线复合封装技术和模块设计制备技术等。

中文关键词： 钙钛矿型太阳能电池；化学稳定性；稳定性调控；界面修饰；封装与模块技术

英文摘要： Perovskite solar cells (PSCs) have received much more attention due to its excellent light-to-electricity conversion efficiency and low cost. Currently, the stability of the PSCs has already been the bottle-neck to limit its development. In this project, investigation on the stability and related fundamental issues on regulation and control of highly efficient perovskite solar cells will be carried out. Several work will be included on the chemical stabilities and electron transfer processes of perovksite materials under different sensitive conditions, such as the existence of moisture, oxygen, Lewis acid and base, the irradiation of UV light and related wet preparation conditions (i.e. solvent, solute, additive and impurity). In the meantime, the internal relationship and rules will be revealed between the variety of crystal structures and interfacial defects of perovskites and the stabilities of the materials and PSC devices. On the basis of the above work, more concentration will be focused on the regulation and related machanism of the PSCs stability, including researching the interfacial modification and the action mechanisms before and after the perovksite deposition, exploring new perovskite materials and device structures for modifying the stability, developing new sealing techniques with the combination of interfacial modification inner sealing technique, thin film sealing technique outside the electrode and Helmet type sealing technique. Finally, new module integration will be designed and the preparation techniques of PSC modules will be developed.

英文关键词： Perovskite solar cells;Chemical stability ;Stability regulation and control;Interface modification;Sealing and module techniques