Halide perovskite nanocrystals (NCs) are promising solution-processed emitters for low-cost optoelectronics and photonics. Doping adds a degree of freedom for their design and enables us to fully decouple their absorption and emission functions. This is paramount for luminescent solar concentrators (LSCs) that enable fabrication of electrode-less solar windows for building-integrated photovoltaic applications. Here, we demonstrate the suitability of manganese-doped CsPbCl₃ NCs as reabsorption-free emitters for large-area LSCs. Light propagation measurements and Monte Carlo simulations indicate that the dopant emission is unaffected by reabsorption. Nanocomposite LSCs were fabricated via mass copolymerization of acrylate monomers, ensuring thermal and mechanical stability and optimal compatibility of the NCs, with fully preserved emission efficiency. As a result, perovskite LSCs behave closely to ideal devices, in which all portions of the illuminated area contribute equally to the total optical power. These results demonstrate the potential of doped perovskite NCs for LSCs, as well as for other photonic technologies relying on low-attenuation long-range optical wave guiding.

中文翻译：

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掺杂卤化物钙钛矿纳米晶体，用于无吸收的发光太阳能聚光器

卤化物钙钛矿纳米晶体（NCs）是用于低成本光电和光子学的有前途的经过溶液处理的发射极。掺杂为它们的设计增加了自由度，并使我们能够完全解耦它们的吸收和发射功能。对于发光太阳能集中器（LSC）而言，这是最重要的，它可以制造用于建筑集成光伏应用的无电极太阳能窗户。在这里，我们证明了锰掺杂的CsPbCl ₃的适用性NC作为大面积LSC的无重吸收发射器。光传播测量和蒙特卡洛模拟表明，掺杂剂的发射不受重吸收的影响。纳米复合LSC是通过丙烯酸酯单体的质量共聚制备的，可确保热稳定性和机械稳定性以及NC的最佳相容性，并充分保留了发射效率。结果，钙钛矿型LSC的性能与理想设备非常接近，在理想设备中，照明区域的所有部分均对总光功率做出同等贡献。这些结果证明了掺杂钙钛矿NCs对于LSC以及依赖于低衰减远距离光波导的其他光子技术的潜力。