用于增强非晶硅薄膜太阳能电池光吸收的高斯光栅

IF 2.5 3区 物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-03-07 DOI:10.1016/j.photonics.2024.101247
Mohammad Eskandari
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引用次数: 0

摘要

本研究利用高斯分布的光栅来增加非晶硅薄膜太阳能电池对光的吸收。光栅是将光捕获到电池活性层内部的有效结构,因此在电池前表面放置了一个矩形结构的二维高斯光栅。使用有限元法得出的结果表明,与不带光栅的电池和带普通光栅的电池相比,厚度为 0.5 μm 的电池对可见光和近红外波段光的吸收明显增强。带有高斯光栅的电池对光的最大平均吸收率为 84.8%,比参照电池高出 90%。此外,短路电流密度和效率分别为 34.2 mA/cm2 和 17.6 mA/cm2,与参考电池相比分别提高了 72% 和 72.5%。建议的结构可用于电池中,将更多的光能转化为电能。
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Gaussian grating for enhancing light absorption by amorphous silicon thin-film solar cells

In this study, a grating with a Gaussian distribution was used to increase the absorption of light by amorphous silicon thin film solar cells. A grating is an effective structure for trapping light inside the active layer of a cell, so a two-dimensional Gaussian grating with a rectangular structure was placed on the front surface of the cell. The results obtained by using the finite element method showed that the Gaussian grating significantly enhanced the absorption of light in the visible and near-infrared ranges by a cell with a thickness of 0.5 μm compared with a cell without gratings and a cell with normal gratings. The maximum average light absorption by the cell with a Gaussian grating was 84.8%, which was 90% higher compared with the reference cell. In addition, the short-circuit current density and efficiency were determined as 34.2 and 17.6 mA/cm2, respectively, which were 72% and 72.5% higher, respectively, compared with the reference cell. The proposed structure could be used in a cell to convert more light into electricity.

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来源期刊
CiteScore
5.00
自引率
3.70%
发文量
77
审稿时长
62 days
期刊介绍: This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.
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