波浪形减反射/辐射冷却薄膜提升太阳电池性能

李晶晶; 王瑞祥; 邢美波

doi:10.19912/j.0254-0096.tynxb.2024-0778

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (9) : 520-527. DOI: 10.19912/j.0254-0096.tynxb.2024-0778

波浪形减反射/辐射冷却薄膜提升太阳电池性能

李晶晶, 王瑞祥, 邢美波

作者信息 +

ENHANCEMENT OF SOLAR CELL PERFORMANCE WITH WAVY ANTIREFLECTION AND RADIATIVE COOLING FILMS

Li Jingjing, Wang Ruixiang, Xing Meibo

Author information +

文章历史 +

摘要

为增强太阳电池的光电转换效率,提出将波浪形聚二甲基硅氧烷（PDMS）薄膜用于硅太阳电池,可同时实现减反射与辐射冷却双功能。采用时域有限差分（FDTD）方法模拟研究PDMS膜的厚度及波浪形貌参数对其光学性能的影响。结果表明：PDMS层厚度为60 μm,波浪形结构周期2 μm,振幅5 μm的波浪形PDMS薄膜性能最佳,在大气窗口波段（8~13 μm）可实现94%的发射率,在光伏响应波段（0.3~1.1 μm）可实现99.5%的太阳透过率。此外,该波浪形PDMS薄膜在减反射与辐射冷却的共同作用下,可将裸硅电池的温度降低5.82 ℃,可有效避免3.15%的电损失。

Abstract

This study proposes the use of a wavy polydimethylsiloxane （PDMS） film to enhance the photovoltaic conversion efficiency of silicon solar cells through antireflection and radiative cooling. Through finite-difference time-domain （FDTD） simulation, the effect of PDMS thickness and waveform parameters on the optical performance is investigated. The results show that the wavy PDMS film with a thickness of 60 μm, a wave period of 2 μm, and a wave amplitude of 5 μm has the optimal performance. It achieves 94% emissivity in the atmospheric window band （8-13 μm） and 99.5% solar transmittance in the photovoltaic response band （0.3-1.1 μm）. In addition, this wavy PDMS film can reduce the temperature of bare silicon cells by 5.82 ℃ with the combined antireflection and radiative cooling, effectively avoiding 3.15% electrical losses.

导出引用

李晶晶, 王瑞祥, 邢美波. 波浪形减反射/辐射冷却薄膜提升太阳电池性能[J]. 太阳能学报. 2025, 46(9): 520-527 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0778

Li Jingjing, Wang Ruixiang, Xing Meibo. ENHANCEMENT OF SOLAR CELL PERFORMANCE WITH WAVY ANTIREFLECTION AND RADIATIVE COOLING FILMS[J]. Acta Energiae Solaris Sinica. 2025, 46(9): 520-527 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0778

中图分类号： TB64 TK519

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