FACsPb Triple Halide Perovskite Solar Cells with Thermal Operation over 200 °C
FACsPb Triple Halide Perovskite Solar Cells with Thermal Operation over 200 °C
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DOI：
10.1021/acsenergylett.3c00551
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发表时间：
2023-04
影响因子：
22
通讯作者：
H. Afshari;S. Sourabh;Sergio A. Chacon;V. R. Whiteside;Rachel C. Penner;Bibhudutta Rout;Ahmad R. Kirmani;J. Luther;G. Eperon;I. Sellers
中科院分区：
文献类型：
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作者：
H. Afshari;S. Sourabh;Sergio A. Chacon;V. R. Whiteside;Rachel C. Penner;Bibhudutta Rout;Ahmad R. Kirmani;J. Luther;G. Eperon;I. Sellers
甲酸铯钙钛矿太阳能电池已被证明是最稳定的金属卤化物钙钛矿之一。这里给出了高温数据，系统地和统计地证明了该系统的高热运行温度超过200°C。在250 K和490 K之间的器件测量表明，虽然在较高温度下明显存在一些性能损失，但这是由可逆卤化物偏析驱动的，没有证据表明在探测的测量范围内存在结构相变。此外，当温度降低到环境温度时，功率转换效率保持不变。
Formamidinium cesium (FACs) perovskites solar cells have been shown to be among the most stable metal halide perovskites. Here, high-temperature data are presented which systematically and statistically demonstrate the high thermal operation of this system to temperatures in excess of 200 °C. Device measurements between 250 K and 490 K show that while some loss of performance is evident at higher temperature, this is driven by reversible halide segregation with no evidence of a structural phase transition over the measurement range probed. Moreover, upon reduction of the temperature back to ambient the power conversion efficiency is retained.