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Slow photocharging and reduced hysteresis in low-temperature processed planar perovskite solar cells

机译:低温处理的平面钙钛矿太阳能电池中的慢速充电和降低的磁滞

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摘要

High efficient organolead trihalide perovskite solar cells typically utilize high temperature processed TiO2 as the electron transporting layer (ETL). A new method for the preparation of low temperature processed amorphous TiO2 as the ETL in planar perovskite solar cells is demonstrated. The proposed technique allowed the entire fabrication of perovskite solar cells with power conversion efficiencies as high as 13.7%, to take place at temperatures lower than 150 degrees C. We revealed that the source of device efficiency lies in the fast and balanced charge transport within the selective contacts as well as the effective charge extraction from the perovskite.
机译:高效有机铅三卤化物钙钛矿型太阳能电池通常利用高温处理的TiO2作为电子传输层(ETL)。提出了一种新的制备平面钙钛矿型太阳能电池中作为ETL的低温非晶态TiO2的方法。所提出的技术使功率转换效率高达13.7%的钙钛矿太阳能电池的整个制造过程,都可以在低于150摄氏度的温度下进行。选择性接触以及从钙钛矿中有效提取电荷。

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