New photovoltaic materials have been extensively searched for in the last decade for clean and renewable solar energy conversion. Among them, the organic–inorganic hybrid lead halide perovskite solar cell is of current interest to the solar cell community because of its low processing cost, ease of fabrication and high power conversion efficiency. These perovskites show great potential to be photovoltaic absorbers with excellent optoelectronic properties, for example, high absorption coefficient, long charge carrier diffusion length, moderate ambipolar mobilities, tunable bandgap, etc. The unique physical and chemical properties of these materials are based on the crystal structure of the perovskites, named after the mineral form of CaTiO 3 . Most inorganic materials with a perovskite crystal structure typically show ferroelectric properties. Ferroelectricity in methylammonium lead tri-iodide (MAPbI 3 ), an absorbing material in perovskite solar cells with a pe...

中文翻译：

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有机-无机杂化卤化铅在钙钛矿太阳能电池中的吸收剂：铁电论战

在过去的十年中，已经广泛地寻找新的光伏材料以进行清洁和可再生的太阳能转化。其中，有机-无机混合卤化铅钙钛矿型太阳能电池因其低廉的加工成本，易于制造和高功率转换效率而受到太阳能电池界的关注。这些钙钛矿显示出巨大的潜力，成为具有优异光电性能的光电吸收剂，例如，高吸收系数，长载流子扩散长度，中等双极性迁移率，可调节带隙等。这些材料独特的物理和化学特性基于晶体钙钛矿的结构，以CaTiO 3的矿物形式命名。大多数具有钙钛矿晶体结构的无机材料通常显示出铁电性能。