用于提高钙钛矿太阳能电池效率和长期稳定性的混合氧化剂POM@Cu-BTC的自组装
Self-Assembly of Hybrid Oxidant POM@Cu-BTC for Enhanced Efficiency and Long-Term Stability of Perovskite Solar Cells.
作者信息
Dong Yayu, Zhang Jian, Yang Yulin, Qiu Lele, Xia Debin, Lin Kaifeng, Wang Jiaqi, Fan Xiao, Fan Ruiqing
机构信息
MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
出版信息
Angew Chem Int Ed Engl. 2019 Dec 2;58(49):17610-17615. doi: 10.1002/anie.201909291. Epub 2019 Oct 23.
The controllable oxidation of spiro-OMeTAD and improving the stability of hole-transport materials (HTMs) layer are crucial for good performance and stability of perovskite solar cells (PSCs). Herein, we report an efficient hybrid polyoxometalate@metal-organic framework (POM@MOF) material, [Cu (BTC) (H O) ] [H PMo O ] or POM@Cu-BTC, for the oxidation of spiro-OMeTAD with Li-TFSI and TBP. When POM@Cu-BTC is introduced to the HTM layer as a dopant, the PSCs achieve a superior fill factor of 0.80 and enhanced power conversion efficiency 21.44 %, as well as improved long-term stability in an ambient atmosphere without encapsulation. The enhanced performance is attributed to the oxidation activity of POM anions and solid-state nanoparticles. Therefore, this research presents a facile way by using hybrid porous materials to accelerate oxidation of spiro-OMeTAD, further improving the efficiency and stability of PSCs.
螺环-OMeTAD的可控氧化以及提高空穴传输材料（HTMs）层的稳定性对于钙钛矿太阳能电池（PSCs）的良好性能和稳定性至关重要。在此，我们报道了一种高效的杂化多金属氧酸盐@金属有机框架（POM@MOF）材料，[Cu (BTC) (H₂O) ] [H₃PMo₁₂O₄₀] 或POM@Cu-BTC，用于用Li-TFSI和TBP氧化螺环-OMeTAD。当将POM@Cu-BTC作为掺杂剂引入HTM层时，PSCs实现了0.80的优异填充因子和21.44 %的增强功率转换效率，以及在无封装的环境气氛中提高的长期稳定性。性能的增强归因于POM阴离子和固态纳米颗粒的氧化活性。因此，本研究提出了一种通过使用杂化多孔材料来加速螺环-OMeTAD氧化的简便方法，进一步提高了PSCs的效率和稳定性。
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