基于p-NiO/CH3NH3PbI3/n-ZnO简易三明治结构钙钛矿太阳电池的界面调控与性能优化

项目名称： 基于p-NiO/CH3NH3PbI3/n-ZnO简易三明治结构钙钛矿太阳电池的界面调控与性能优化

项目编号： No.51462035

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 肖宗湖

作者单位： 新余学院

项目金额： 47万元

中文摘要： 基于钙钛矿型CH3NH3PbI3的太阳电池因其光电转换效率飞速提升而受到广泛关注，但典型结构中有机空穴传输材料spiro-OMeTAD过于昂贵且稳定性差，电子传输材料TiO2也被认为会导致开路电压降低、稳定性退化。据此，本项目提出以性能优异、廉价易得的NiO和ZnO作为电荷传输材料，构建p-NiO/CH3NH3PbI3/n-ZnO简易三明治结构钙钛矿太阳电池的新思路。分别采用磁控溅射和两步湿法制备NiO、ZnO和钙钛矿材料，通过对各材料的形貌、结构与性能的可控制备，界面结构及性能的表征与调控等方面的系统研究，揭示界面结构与电池性能之间的构效关系与调控原理,阐明钙钛矿薄膜的成膜机制和电荷传输损耗机理，建立电池性能优化理论，获得一种高效、稳定、低成本的新型钙钛矿太阳电池，形成一系列能源转换材料的形貌、结构及性能的可控制备技术和界面的组装、钝化、修饰技术，为其实用化提供理论基础和技术支撑。

中文关键词： 太阳电池；钙钛矿；氧化镍；氧化锌；界面调控

英文摘要： CH3NH3PbI3-based perovskite solar cells have been received extensive attention because of the rapid increase of photoelectric conversion efficiency. However, the organic hole transport material spiro-OMeTAD existing in typical structure is too expensive and have poor stability, the electron transporting material TiO2 is also believed to cause the decrease of open circuit voltage and the degradation of stability. Accordingly, This project proposes a new way of constructing the perovskite solar cell based on p-NiO/CH3NH3PbI3/n-ZnO with a simple sandwich structure, the cheap NiO and ZnO with excellent performance as charge transport materials. NiO, ZnO and perovskite materials are prepared by magnetron sputtering and a two-step wet process, respectively. Through systematic research on the controllable preparation of various materials on morphology, structure and properties, the characterization and control of interface structure, to reveal the structure-activity relationship and regulation principle between interface structure and solar cells performance, to clarify the formation mechanism of perovskite thin films and the loss mechanism of charge transfer, to establish the performance optimization theory of perovskite solar cells, to obtain an efficient, stable, low-cost perovskite solar cell, to form a series of controllable preparation technologies of energy conversion material on morphology, structure and properties, and the assembly, passivation, modification technolog of interface, to provide a theoretical basis and technical support for its practical.

英文关键词： Solar Cells;Perovskite;Nickel Oxide;Zinc Oxide;Interface Control