MAPbI3-xBrx mixed halide perovskites for fully printable mesoscopic solar cells with enhanced efficiency and less hysteresis

作者：Cao, Kun; Li, Hao; Liu, ShuangShuang; Cui, Jin; Shen, Yan; Wang, Mingkui^*

来源：Nanoscale, 2016, 8(16): 8839-8846.

DOI：10.1039/c6nr01043a

• HOLE-CONDUCTOR-FREE
• HIGH-PERFORMANCE
• RECOMBINATION
• IODIDE
• EVOLUTION
• ABSORBER
• CONTACT
• ORIGIN
• BR

Hybrid lead-halide perovskite solar cells (PSCs) are promising alternatives to silicon-based cells due to their high photovoltaic performance and low cost. We report herein fully printable perovskite solar cells with a mesoporous TiO2/Al2O3/C architecture in combination with mixed-halide MAPbI(3-x)Br(x) perovskites. A maximum conversion efficiency of 13.49% can be achieved with an increased open circuit voltage of 1.01 V, which is higher than the MAPbI(3)-based devices. A reduced anomalous hysteresis in the J-V curve measurement has been demonstrated in perovskite solar cells based on MAPbI(2.4)Br(0.6) perovskite, which is directly linked to the characteristically slow kinetics measured through electrochemical impedance spectroscopy.

• 出版日期2016
• 单位华中科技大学