本项目采用原子层沉积法、高能球磨法和旋涂法相结合，在柔性基体表面层层组装微纳结构可控、厚度可调的钙钛矿太阳电池用AZO/ZnO-CH3NH3PbI3异质结，来提高电子收集能力，降低光生电子与空穴的复合，进而提高柔性钙钛矿太阳电池的光电性能，从而得到成本低、光电性能优异、可大面积实施的柔性钙钛矿太阳电池异质结制备新技术，为钙钛矿太阳电池推广应用提供可靠的理论基础与技术支持。系统研究原子层沉积和高能球磨工艺参数对所得AZO和ZnO-CH3NH3PbI3薄膜微纳结构、厚度、能带结构等影响规律。采用 XPS、XRD、SEM、AFM、霍尔测试仪、光电测试系统等测试分析AZO/ZnO-CH3NH3PbI3异质结的相组成、厚度、结合状态、分布、载流子浓度和光电等性能，探讨AZO/ZnO- CH3NH3PbI3异质结特性对光电性能影响规律，建立异质结电子传输模型，揭示钙钛矿太阳电池中电荷传输机理。

This project assemble the controllable micro-nano structure and adjustable thickness of AZO/ZnO-CH3NH3PbI3 heterostructures for perovskite solar cell on flexible substrate using atomic layer deposition, combines high-energy ball milling and spin-coating method, to improve collection capacity and reduce the compound of photogenerated electrons and holes, and improve the optical and electrical properties of the flexible perovskite-type solar cells, thus to obtain low cost and excellent optical properties, and the preparation method of large area flexible perovskite-type solar cell heterostructures, provide reliable and technical support for the popularization and application of perovskite-type solar cell. The effect of atomic layer deposition and high energy ball-milling parameters on the micro-and nano-structures and thickness, band structure properties of ZnO-CH3NH3PbI3 and AZO thin films have been investigated. The phase composition, thickness, combined state, distribution, carrier density and photoelectric properties of AZO/ZnO-CH3NH3PbI3 heterostruction have been analyzed by using XPS, XRD, SEM, AFM, Hall Tester and electro-optical test systems. The effect of characteristics of AZO/ZnO-CH3NH3PbI3 heterostructures on its optical and electrical properties has been investigated. The electron transport model have been established, and the charge transport mechanism of perovskite-type solar cell have been revealed.