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Resonant Silicon Nanoparticles for Enhanced Light Harvesting in Halide Perovskite Solar Cells
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-08-30 , DOI: 10.1002/adom.201800576 Aleksandra Furasova 1 , Emanuele Calabró 2 , Enrico Lamanna 2 , Ekaterina Tiguntseva 1 , Elena Ushakova 3 , Eugene Ubyivovk 4 , Vladimir Mikhailovskii 4 , Anvar Zakhidov 1, 5 , Sergey Makarov 1 , Aldo Di Carlo 2
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-08-30 , DOI: 10.1002/adom.201800576 Aleksandra Furasova 1 , Emanuele Calabró 2 , Enrico Lamanna 2 , Ekaterina Tiguntseva 1 , Elena Ushakova 3 , Eugene Ubyivovk 4 , Vladimir Mikhailovskii 4 , Anvar Zakhidov 1, 5 , Sergey Makarov 1 , Aldo Di Carlo 2
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Implementation of resonant nanoparticles (NPs) for improving performance of organometal halide perovskites solar cells is highly prospective approach, because it is compatible with the solution processing techniques used for any organic materials. Previously, resonant metallic NPs have been incorporated into perovskite solar cells for better light absorption and charge separation. However, high inherent optical losses and high reactivity of noble metals with halides in perovskites are main limiting factors for this approach. Incidentally, low‐loss and chemically inert resonant silicon NPs allow for light trapping and enhancement at nanoscale, being suitable for thin film photovoltaics. Here photocurrent and fill‐factor (FF) enhancements in meso‐superstructured perovskite solar cells, incorporating resonant silicon NPs between mesoporous TiO2 transport and active layers, are demonstrated. This results in a boost of device efficiency up to 18.8% and FF up to 79%, being a record among the previously reported values on NPs incorporation into CH3NH3PbI3 perovskite‐based solar cells. Theoretical modeling and optical characterization reveal the significant role of Si NPs for increased light absorption in the active layer rather than for better charge separation. The proposed strategy is universal and can be applied in perovskite solar cells with various compositions, as well as in other optoelectronic devices.
中文翻译：
共振硅纳米粒子增强卤化物钙钛矿太阳能电池的光收集
实现共振纳米粒子（NPs）以提高有机金属卤化物钙钛矿太阳能电池的性能是非常有前途的方法，因为它与用于任何有机材料的溶液处理技术兼容。以前，共振金属NP已被掺入钙钛矿太阳能电池中，以实现更好的光吸收和电荷分离。然而，钙钛矿中高固有的光学损失和贵金属与卤化物的高反应性是该方法的主要限制因素。顺便说一句，低损耗和化学惰性的共振硅NP可实现纳米级的光捕获和增强，适用于薄膜光伏。在此，介孔超结构钙钛矿太阳能电池的光电流和填充因子（FF）增强，在介孔TiO之间结合了共振硅NP演示了2个传输层和活动层。这导致器件效率提高了18.8％，FF提高了79％，这是先前报道的将NPs掺入基于CH 3 NH 3 PbI 3钙钛矿的太阳能电池中的最高记录。理论建模和光学表征揭示了Si NP在活性层中增加光吸收而不是更好的电荷分离方面的重要作用。所提出的策略是通用的，并且可以应用于具有各种成分的钙钛矿太阳能电池以及其他光电器件中。
更新日期：2018-08-30
中文翻译：
共振硅纳米粒子增强卤化物钙钛矿太阳能电池的光收集
实现共振纳米粒子（NPs）以提高有机金属卤化物钙钛矿太阳能电池的性能是非常有前途的方法，因为它与用于任何有机材料的溶液处理技术兼容。以前，共振金属NP已被掺入钙钛矿太阳能电池中，以实现更好的光吸收和电荷分离。然而，钙钛矿中高固有的光学损失和贵金属与卤化物的高反应性是该方法的主要限制因素。顺便说一句，低损耗和化学惰性的共振硅NP可实现纳米级的光捕获和增强，适用于薄膜光伏。在此，介孔超结构钙钛矿太阳能电池的光电流和填充因子（FF）增强，在介孔TiO之间结合了共振硅NP演示了2个传输层和活动层。这导致器件效率提高了18.8％，FF提高了79％，这是先前报道的将NPs掺入基于CH 3 NH 3 PbI 3钙钛矿的太阳能电池中的最高记录。理论建模和光学表征揭示了Si NP在活性层中增加光吸收而不是更好的电荷分离方面的重要作用。所提出的策略是通用的，并且可以应用于具有各种成分的钙钛矿太阳能电池以及其他光电器件中。
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