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首页> 外文期刊>Solar RRL >Broadband and Omnidirectional Antireflection Surfaces Based on Deep Subwavelength Features for Harvesting of the Solar Energy
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Broadband and Omnidirectional Antireflection Surfaces Based on Deep Subwavelength Features for Harvesting of the Solar Energy

机译：基于深度亚波长特征的宽带和全向抗反射表面，用于收获太阳能

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摘要

Broadband and omnidirectional antireflective surfaces are important to varioussolar energy technologies. The utilization of deep subwavelength features isreported for decrement in the broadband and omnidirectional reflection of thesolar spectrum. The study commences with nanopillar (NP) arrays that are wellknown for their antireflection properties. Deep subwavelength features to thenanopillar arrays are introduced, which yield further decrease in reflection:quasinanolens (qNL), deep subwavelength sidewall scalloping (DSSS), anddecreasing the nanopillar bottom diameter to reshape it into a light funnel (LF).Accordingly, surface silicon arrays are realized in a topdown fabrication process:nanopillar arrays, nanopillar arrays incorporated with DSSS, nanopillararrays incorporated with qNL, nanopillar arrays incorporated with qNL andDSSS, and nanopillar arrays that are transformed into LF arrays and are complementedwith qNL and DSSS. It is experimentally shown that utilization of deepsubwavelength features produces a broadband reflection decrement with analmost 80% decrement for normal incidence and 60% decrement for an angle ofincidence of 80, for unpolarized illumination. The introduction of deep subwavelengthfeatures concludes a 20% decrement in the broadband diffusedreflection compared with undecorated NP arrays. The effect of deep subwavelengthfeatures is also explored numerically, and the possible underlying lighttrappingmechanisms are discussed.
机译：宽带和全向抗反射表面对各种重要性很重要太阳能技术。利用深亚波长特征是据报道，宽带和全向反映的递减太阳光谱。该研究开始与纳米玻璃（NP）阵列开始以其抗反射性质而闻名。深度子波长特征介绍了纳米池阵列，其反射进一步降低：Quasinanolens（QNL），深亚波长侧壁扇形（DSS），和减小纳米玻璃底部直径将其重塑成闪光漏斗（LF）。因此，表面硅阵列在底部制造过程中实现：Nanopillar阵列，纳米玻璃阵列与DSSS，纳米粉包含qnl，纳米玻璃阵列的阵列包含qnl和DSSS和纳米玻璃阵列被转变为LF阵列并补充使用QNL和DSSS。它是通过实验证明的利用深度子波长特征与宽带反射递减产生正常发病率下降差约80％，而且为角度减少60％发病率为80，用于非偏振照明。深度亚波长的引入特征总结宽带扩散的20％递减与未透明的NP阵列相比的反思。深度亚波长的影响功能也在数值上探索，以及可能的底层光竞争讨论了机制。

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  • 来源
    《Solar RRL》 |2021年第12期|2100548.1-2100548.11|共11页
  • 作者

    Ashish Prajapati; Jordi Llobet; Patricia C Sousa; Helder Fonseca; Carlos Calaza; Gil Shalev;

  • 作者单位

    School of Electrical EngineeringBen-Gurion University of the NegevPOB 653 Beer-Sheva 8410501 Israel;

    Institut de Microelectronica de Barcelona (IMB-CNM CSIC)08193 Bellaterra Catalonia Spain;

    Microfabrication and Exploratory Nanotechnology groupInternational Iberian Nanotechnology Laboratory (INL)Braga 4715-330 Portugal;

    Microfabrication and Exploratory Nanotechnology groupInternational Iberian Nanotechnology Laboratory (INL)Braga 4715-330 Portugal;

    Microfabrication and Exploratory Nanotechnology groupInternational Iberian Nanotechnology Laboratory (INL)Braga 4715-330 Portugal;

    School of Electrical EngineeringBen-Gurion University of the NegevPOB 653 Beer-Sheva 8410501 Israel The Ilse-Katz Institute for Nanoscale Science and TechnologyBen-Gurion University of the NegevPOB 653 Beer-Sheva 8410501 Israel;

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  • 正文语种 eng
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  • 关键词

    angle-of-incidence; broadband omnidirectional anti-reflection; light funnels; light trapping; nanopillar arrays; photon management; solar energy harvesting;

    机译：入射角;宽带全向反射;轻型漏斗;轻陷阱;纳米玻璃阵列;光子管理;太阳能收获;

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