Reflection behavior of two-dimensional super-quadratic subwavelength gratings for silicon-based photovoltaics

Chen, Ke; Wu, Rui Yuan; Zheng, Hongmei; Zhang, Guojun; Wang, Yuanyuan; Wang, Haishuo; Chen, Shun Hua

doi:10.1364/josaa.36.000647

Cited by 5 publications

(1 citation statement)

References 49 publications

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“…With the development of microfabrication technology, subwavelength structures can be directly fabricated on the surface of optoelectronic devices using microelectronic process technology, thereby improving the damage threshold of anti-reflection layers and greatly enhancing the stability of anti-reflection functional coatings [2] . The diverse functionality and design flexibility of subwavelength structures have led to their increasing use in defense, laser processing, aerospace, and other fields [3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of anti-reflection subwavelength structured gratings with operating wavelength of 1064nm

Fu,

Yang,

Zhang

2024

Speckle 2023: VIII International Conference on Speckle Metrology

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Subwavelength structured gratings are increasingly used in new optoelectronic devices, micro-optical electromechanical systems, and other fields due to their functional diversity and large design freedom. When the characteristic size of the structure is much smaller than the wavelength of the incident light, only zero-order reflection and transmission diffraction will exist. By changing the parameter values of column width, duty cycle, and trench depth of the subwavelength structured grating, its reflectivity can be changed. In this paper, the finite difference time domain method (FDTD) and the equivalent medium theory are used to study and analyze the influence of the subwavelength structural parameters of the grating on the reflection characteristics and design an anti-reflection subwavelength structural grating with an operating wavelength of 1064nm. The simulation results show that when the grating period is 0.4μm, the duty cycle is 0.875, the groove depth is 0.23μm, and the column width is 0.35μm, the reflectivity of the subwavelength structure grating for incident light from 0° to 30° can reach 0.5%~0.7%.

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Section: Introductionmentioning

confidence: 99%

Design and analysis of anti-reflection subwavelength structured gratings with operating wavelength of 1064nm

Fu,

Yang,

Zhang

2024

Speckle 2023: VIII International Conference on Speckle Metrology

View full text Add to dashboard Cite

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On the determination and optimization of apparent “elastic limit” of kirigami metallic glasses

Chen

Yuan

Zheng

et al. 2021

Physica B: Condensed Matter

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Period-mismatched sine dual-interface grating for optical absorption in silicon thin-film solar cells

Zheng

et al. 2020

Appl. Opt.

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Crystalline silicon thin-film solar cells with period-mismatched sine dual-interface gratings are proposed. Several structural parameters of the front and rear gratings, such as heights, periods, and duty ratios, are optimized using the finite-difference time-domain method. The mechanisms of absorption enhancement are also illustrated by analyzing the optical and electrical performance in thin-film solar cells with different grating arrangements. Numerical results indicate that the period-mismatched sine dual-interface grating structure shows obvious improvement in absorption efficiency and is more suitable for grating structures with small period. The short-circuit current density of the period-mismatched dual-interface sine grating structure is improved to 18.89 m A / c m 2 , an increase of 41.39% as compared with the planar structure. The research findings can be utilized to guide the design of grating structures for thin-film solar cells.

show abstract

Reflection behavior of two-dimensional super-quadratic subwavelength gratings for silicon-based photovoltaics

Cited by 5 publications

References 49 publications

Design and analysis of anti-reflection subwavelength structured gratings with operating wavelength of 1064nm

Design and analysis of anti-reflection subwavelength structured gratings with operating wavelength of 1064nm

On the determination and optimization of apparent “elastic limit” of kirigami metallic glasses

Period-mismatched sine dual-interface grating for optical absorption in silicon thin-film solar cells

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