杂化钙钛矿太阳能电池效率迅速突破20%，从而吸引了广泛的关注。目前的研究主要集中在提高效率，但要真正实现产业化应用，还急需解决稳定性的问题。围绕钙钛矿电池稳定性这一关键科学问题，本项目针对锂盐极易吸潮而造成钙钛矿分解的关键因素，创新性提出采用疏水性非锂盐掺杂的空穴传输体系改善钙钛矿太阳能电池稳定性。主要开展：1）研究疏水性高效空穴传输体系的传输性能，实现空穴迁移率大于10-3cm2/Vs；2）通过疏水性无机p型半导体、有机及无机p型掺杂等替代锂盐掺杂，提高空穴传输体系的传输能力至空穴迁移率大于10-2cm2/Vs；3）采用疏水性非锂盐掺杂的空穴传输体系，实现钙钛矿太阳能电池的高效（20%以上）及高稳定性（> 5000h）制备，为发展钙钛矿电池的实际应用提供理论支撑。

Hybrid perovskite solar cell has attracted great attention due to its power conversion efficiency quickly over 20%. Currently most of the reports on perovskite solar cell focus on how to improve efficiency; nevertheless the stability is more important for industrialization. This project plans to, centering on the core issue of stability, focus on the key issue of absorption of moisture by lithium salt to cause the perovskite decomposition, first to improve the stability of perovskite solar cells via a hole transporting system doped with hydrophobic non-lithium salt. Mainly in the following: 1) the transport properties of different hydrophobic hole transport materials with a hole mobility higher than 10-3cm2/Vs; 2) through hydrophobic p-type inorganic semiconductor, organic or inorganic p-type dopant to replace lithium salt, improve the transporting properties of hole transport materials with a hole mobility higher than 10-2cm2/Vs; 3) to prepare high efficient perovskite solar cells with a efficiency of >20% and high stability (>5000h) via using the hole transporting system with the new type of hydrophobic non-lithium salt dopant, to provide a theoretical support for the development of highly efficient and stable perovskite solar cells.