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波浪形减反射/辐射冷却薄膜提升太阳电池性能
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- 太阳能学报 2025年46卷第9期 页码：520-527
- 作者机构：
- 作者简介：
- 基金信息：北京市自然科学基金（3242015）;北京市科技计划（Z231100006123014）
DOI：doi:10.19912/j.0254-0096.tynxb.2024-0778
中图分类号： TB64-
网络出版：2025-10-14，
纸质出版：2025
- 稿件说明：
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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.
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. DOI： doi:10.19912/j.0254-0096.tynxb.2024-0778.
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.
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references
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