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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >The influence of the mesoporous TiO2 scaffold on the performance of methyl ammonium lead iodide (MAPI) perovskite solar cells: charge injection, charge recombination and solar cell efficiency relationship
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The influence of the mesoporous TiO2 scaffold on the performance of methyl ammonium lead iodide (MAPI) perovskite solar cells: charge injection, charge recombination and solar cell efficiency relationship

机译：介孔TiO2支架对甲基铵碘化铅钙钛矿型太阳能电池性能的影响：电荷注入，电荷复合和太阳能电池效率关系

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摘要

Methyl Ammonium Lead Iodide (MAPI) perovskite solar cells have achieved over 20% light-to-energy conversion efficiency with the use of a thin mesoporous layer of TiO2 as a scaffold for the MAPI. Although other solar cell configurations have also been reported, so far only those containing mesoporous TiO2 (mpTiO(2)) have achieved such performance. Herein we describe an exhaustive study of the effects, on the MAPI solar cell performance, of different synthetic routes to achieve nanocrystalline TiO2 nanoparticles that are used to fabricate the mpTiO(2) layer. Furthermore, we also measured the interfacial charge transfer dynamics to elucidate the device function-charge recombination kinetics relationship in the different types of synthesised mpTiO(2). Our results show that the choice of the chemical properties of the mpTiO(2) layer is of utmost importance to achieve high solar-to-energy conversion efficiencies with remarkable effects on the measured charge carrier recombination kinetics.
机译：甲基铵碘化铅（MAPI）钙钛矿型太阳能电池通过使用TiO2薄介孔层作为MAPI的支架，实现了超过20％的光能转换效率。尽管也有其他太阳能电池配置的报告，但到目前为止，只有那些包含中孔TiO2（mpTiO（2））的电池才具有这种性能。在这里，我们描述了对MAPI太阳能电池性能的不同合成途径的详尽研究，以实现用于制造mpTiO（2）层的纳米TiO2纳米晶。此外，我们还测量了界面电荷转移动力学，以阐明在不同类型的合成mpTiO（2）中的器件功能-电荷复合动力学关系。我们的结果表明，选择mpTiO（2）层的化学性质对于实现高的太阳到能量转换效率以及对测得的载流子复合动力学的显着影响至关重要。

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