具有高迁移率空穴传输层的无致密层钙钛矿太阳能电池。
Compact Layer Free Perovskite Solar Cells with a High-Mobility Hole-Transporting Layer.
机构信息
College of Materials Science and Engineering, Qingdao University of Science and Technology , Qingdao, Shandong 266042, P. R. China.
Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao, Shandong 266101, P. R. China.
出版信息
ACS Appl Mater Interfaces. 2016 Feb 3;8(4):2652-7. doi: 10.1021/acsami.5b10555. Epub 2016 Jan 21.
A high-mobility diketopyrrolopyrrole-based copolymer (P) was employed in compact layer free CH3NH3PbI3 perovskite solar cells as a hole-transporting layer (HTL). By using the P-HTL, the 6.62% device efficiency with conventional poly-3-hexylthiophene was increased to 10.80% in the simple device configuration (ITO/CH3NH3PbI3/HTL/MoO3/Ag). With improved short circuit current density, open circuit voltage, and fill factor, the higher power conversion efficiency of P-HTL device is ascribed to the higher carrier mobility, more suitable energy level, and lower interfacial charge recombination. Advantages of applying P-HTL to perovskite solar cells, such as low cost, low-temperature processing, and excellent performance with simple cell structure, exhibit a possibility for commercial applications.
采用一种基于高迁移率二酮吡咯并吡咯的聚合物（P）作为空穴传输层（HTL），在无致密层的 CH3NH3PbI3 钙钛矿太阳能电池中使用。通过使用 P-HTL，在简单的器件结构（ITO/CH3NH3PbI3/HTL/MoO3/Ag）中，使用传统的聚 3-己基噻吩时，器件效率从 6.62%提高到 10.80%。通过提高短路电流密度、开路电压和填充因子，P-HTL 器件具有更高的功率转换效率，这归因于更高的载流子迁移率、更合适的能级和更低的界面电荷复合。P-HTL 在钙钛矿太阳能电池中的应用具有成本低、低温处理和简单的电池结构性能优异等优点，展示了其在商业应用中的可能性。
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