Broadband Antireflection with Halide Perovskite Metasurfaces,Laser & Photonics Reviews

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Broadband Antireflection with Halide Perovskite Metasurfaces
Laser & Photonics Reviews ( IF 9.8 ) Pub Date : 2020-11-08 , DOI: 10.1002/lpor.202000338
Kseniia Baryshnikova ₁ , Dmitry Gets ₁ , Tatiana Liashenko ₁ , Anatoly Pushkarev ₁ , Ivan Mukhin ₂ , Yuri Kivshar _{1,

3} , Sergey Makarov ₁

Affiliation

Meta‐optics based on optically resonant dielectric nanostructures is a rapidly developing research field with many potential applications. Halide perovskite metasurfaces have emerged recently as a novel platform for meta‐optics, and they offer unique opportunities for control of light in optoelectronic devices. Here, the generalized Kerker conditions are employed to overlap electric and magnetic Mie resonances in each meta‐atom of MAPbBr₃ perovskite metasurface, and broadband suppression of reflection down to 4% is demonstrated. Furthermore, it is revealed that metasurface nanostructuring is also beneficial for the enhancement of photoluminescence. These results may be useful for applications of nanostructured halide perovskites in photovoltaics and semi‐transparent multifunctional metadevices where reflection reduction is important for their high efficiency.

中文翻译：

卤化物钙钛矿超表面的宽带减反射

基于光学谐振介电纳米结构的准光学是一个发展迅速的研究领域，具有许多潜在的应用。卤化物钙钛矿超表面最近已经成为一种用于超光学的新型平台，它们为控制光电设备中的光提供了独特的机会。在这里，广义的Kerker条件被用于重叠MAPbBr _3的每个亚原子中的电和磁Mie共振钙钛矿超表面，宽带反射率可抑制至4％。此外，揭示了亚表面纳米结构化也有利于增强光致发光。这些结果可能对纳米结构卤化物钙钛矿在光伏和半透明多功能元器件中的应用很有用，在这些器件中，减少反射对于其高效率至关重要。

更新日期：2020-12-12

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