Study on light absorption enhancement of perovskite solar cells by gold nanobipyramids

Wei Luo; Le Chen; Bowen Fang; Jiawei Sun; Wentao Zhan

doi:10.1117/12.2626586

15 November 2022 Study on light absorption enhancement of perovskite solar cells by gold nanobipyramids

Wei Luo, Le Chen, Bowen Fang, Jiawei Sun, Wentao Zhan

Proceedings Volume 12448, 5th Optics Young Scientist Summit (OYSS 2022); 1244805 (2022) https://doi.org/10.1117/12.2626586
Event: 5th Optics Young Scientist Summit (OYSS 2022), 2022, Fuzhou, China

Abstract

As the third generation of solar cells, perovskite solar cells have attracted extensive attention because of their relatively simple structure and high theoretical photoelectric conversion efficiency. However, there are still some problems in thin film perovskite solar cells, such as severe light energy loss, less light absorption in the near-infrared region and part of visible wavelength. Without increasing the thickness of the perovskite absorption layer, using the plasmon effect of metal nanoparticles is an effective method to reduce the light energy loss and enhance the light absorption of solar cells. In this paper, the light absorption of two kinds of perovskite solar cells with and without gold nanobipyramids array structure are simulated by the finite difference time domain method. The results show that the light absorption efficiency of the absorption layer of perovskite solar cells with gold nanobipyramids array structure is improved by 42.93%. Further research shows that the local surface plasmon resonance of gold nanobipyramids can produce substantial electric field enhancement, which may be why gold nanobipyramids enhance the light absorption and improve the efficiency of perovskite solar cells. This study provides a new idea to improve the photoelectric conversion efficiency of perovskite solar cells.

Citation Download Citation

Wei Luo, Le Chen, Bowen Fang, Jiawei Sun, and Wentao Zhan "Study on light absorption enhancement of perovskite solar cells by gold nanobipyramids", Proc. SPIE 12448, 5th Optics Young Scientist Summit (OYSS 2022), 1244805 (15 November 2022); https://doi.org/10.1117/12.2626586

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KEYWORDS

Perovskite

Absorption

Solar cells

Gold

Solar energy

Finite-difference time-domain method

Light scattering

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