OPTICAL MODULATION OF SURFACE/INTERFACE OF PEROVSKITE SOLAR CELLS BASED ON MOTH EYE BIO-INSPIRED STRUCTURE

Shen Xiangqian; Han Fei; Jiang Sihan; Jiang Zhou; Zhou Hua

doi:10.19912/j.0254-0096.tynxb.2023-1404

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (4) : 85-90. DOI: 10.19912/j.0254-0096.tynxb.2023-1404

OPTICAL MODULATION OF SURFACE/INTERFACE OF PEROVSKITE SOLAR CELLS BASED ON MOTH EYE BIO-INSPIRED STRUCTURE

Shen Xiangqian¹, Han Fei¹, Jiang Sihan¹, Jiang Zhou¹, Zhou Hua²

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Abstract

The optical control characteristics of biomimetic moth-eye structures on the surface and interface of perovskite solar cells （PSCs） were systematically investigated using the Finite Difference Time Domain （FDTD） method and Rigorous Coupled Wave Analysis （RCWA）, with the enhancement mechanisms analyzed through Equivalent Medium Theory （EMT）. The results demonstrate that the introduction of moth-eye structures effectively breaks the interface limitations between materials, resulting in the refractive index to shift from adrupt change to gradient change. As a result, optical waves can pass through the interface between the two materials almost unhindered. With optimized regulation, the optical losses of the surface and interface decrease from the original 3.52% and 3.30% to 0.08% and 0.06%, respectively. Consequently, the photoelectric response performance of the cells is significantly enhanced, with an increase in energy conversion efficiency by 14.93% compared to planar cells.

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perovskite solar cells / antireflection coatings / energy conversion efficiency / finite difference time domain method

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Shen Xiangqian, Han Fei, Jiang Sihan, Jiang Zhou, Zhou Hua. OPTICAL MODULATION OF SURFACE/INTERFACE OF PEROVSKITE SOLAR CELLS BASED ON MOTH EYE BIO-INSPIRED STRUCTURE[J]. Acta Energiae Solaris Sinica. 2024, 45(4): 85-90 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1404

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