Photonics for Photovoltaics: Advances and Opportunities,ACS Photonics

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Photonics for Photovoltaics: Advances and Opportunities
ACS Photonics ( IF 6.5 ) Pub Date : 2020-09-12 , DOI: 10.1021/acsphotonics.0c01045
Erik C Garnett ₁ , Bruno Ehrler ₁ , Albert Polman ₁ , Esther Alarcon-Llado ₁

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Photovoltaic systems have reached impressive efficiencies, with records in the range of 20–30% for single-junction cells based on many different materials, yet the fundamental Shockley-Queisser efficiency limit of 34% is still out of reach. Improved photonic design can help approach the efficiency limit by eliminating losses from incomplete absorption or nonradiative recombination. This Perspective reviews nanopatterning methods and metasurfaces for increased light incoupling and light trapping in light absorbers and describes nanophotonics opportunities to reduce carrier recombination and utilize spectral conversion. Beyond the state-of-the-art single junction cells, photonic design plays a crucial role in the next generation of photovoltaics, including tandem and self-adaptive solar cells, and to extend the applicability of solar cells in many different ways. We address the exciting research opportunities and challenges in photonic design principles and fabrication that will accelerate the massive upscaling and (invisible) integration of photovoltaics into every available surface.

中文翻译：

光伏光子学：进步和机遇

光伏系统已经达到了令人印象深刻的效率，基于许多不同材料的单结电池的效率记录在 20-30% 范围内，但 34% 的基本 Shockley-Queisser 效率极限仍然无法达到。改进的光子设计可以通过消除不完全吸收或非辐射复合造成的损失来帮助接近效率极限。本视角回顾了用于增加光吸收体中的光耦合和光捕获的纳米图案化方法和超表面，并描述了减少载流子复合和利用光谱转换的纳米光子学机会。除了最先进的单结电池之外，光子设计在下一代光伏发电（包括串联和自适应太阳能电池）中发挥着至关重要的作用，并以多种不同方式扩展太阳能电池的适用性。我们解决光子设计原理和制造方面令人兴奋的研究机会和挑战，这将加速光伏器件的大规模升级和（隐形）集成到每个可用表面。

更新日期：2020-09-12

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