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首页> 外文期刊>ACS applied materials & interfaces >Carbon-Based CsPbBr3 Perovskite Solar Cells: All-Ambient Processes and High Thermal Stability
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Carbon-Based CsPbBr3 Perovskite Solar Cells: All-Ambient Processes and High Thermal Stability

机译:碳基CsPbBr3钙钛矿太阳能电池:全过程和高热稳定性

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摘要

The device instability has been an important issue for hybrid organic inorganic halide perovskite solar cells (PSCs). This work intends to address this issue by exploiting inorganic perovskite (CsPbBr3) as light absorber, accompanied by replacing organic hole transport materials (HTM) and the metal electrode with a carbon electrode. All the fabrication processes (including those for CsPbBr3 and the carbon electrode) in the PSCs are conducted in ambient atmosphere. Through a systematical optimization on the fabrication processes of CsPbBr3 film, carbon-based PSCs (C-PSCs) obtained the highest power conversion efficiency (PCE) of about 5.0%, a relatively high value for inorganic perovskite-based PSCs. More importantly, after storage for 250 h at 80 degrees C, only 11.7% loss in PCE is observed for CsPbBr3 C-PSCs, significantly lower than that for popular CH3NH3PbI3 C-PSCs (59.0%) and other reported PSCs, which indicated a promising thermal stability of CsPbBr3 C-PS Cs.
机译:对于混合有机无机卤化物钙钛矿太阳能电池(PSC),设备不稳定性一直是重要的问题。这项工作旨在通过利用无机钙钛矿(CsPbBr3)作为光吸收剂,并用碳电极代替有机空穴传输材料(HTM)和金属电极来解决这个问题。 PSC中的所有制造过程(包括CsPbBr3和碳电极的制造过程)均在环境气氛中进行。通过对CsPbBr3薄膜制造工艺的系统优化,碳基PSC(C-PSC)获得了约5.0%的最高功率转换效率(PCE),对于无机钙钛矿基PSC而言,这是一个相对较高的价值。更重要的是,在80摄氏度下存储250小时后,CsPbBr3 C-PSC仅观察到11.7%的PCE损失,远低于流行的CH3NH3PbI3 C-PSC(59.0%)和其他报道的PSC,这表明前景乐观CsPbBr3 C-PS Cs的热稳定性。

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