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Article

Arrays of Plasmonic Nanostructures for Absorption Enhancement in Perovskite Thin Films

School of Engineering, Brown University, 184 Hope Street, Providence, RI 02912, USA
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Nanomaterials 2020, 10(7), 1342; https://doi.org/10.3390/nano10071342
Received: 15 June 2020 / Revised: 3 July 2020 / Accepted: 7 July 2020 / Published: 9 July 2020
(This article belongs to the Special Issue Nanostructured Materials for Solar Cell Applications)
We report optical characterization and theoretical simulation of plasmon enhanced methylammonium lead iodide (MAPbI 3 ) thin-film perovskite solar cells. Specifically, various nanohole (NH) and nanodisk (ND) arrays are fabricated on gold/MAPbI 3 interfaces. Significant absorption enhancement is observed experimentally in 75 nm and 110 nm-thick perovskite films. As a result of increased light scattering by plasmonic concentrators, the original Fabry–Pérot thin-film cavity effects are suppressed in specific structures. However, thanks to field enhancement caused by plasmonic resonances and in-plane interference of propagating surface plasmon polaritons, the calculated overall power conversion efficiency (PCE) of the solar cell is expected to increase by up to 45.5%, compared to its flat counterpart. The role of different geometry parameters of the nanostructure arrays is further investigated using three dimensional (3D) finite-difference time-domain (FDTD) simulations, which makes it possible to identify the physical origin of the absorption enhancement as a function of wavelength and design parameters. These findings demonstrate the potential of plasmonic nanostructures in further enhancing the performance of photovoltaic devices based on thin-film perovskites. View Full-Text
Keywords: perovskite solar cells; surface plasmon polaritons; plasmonic nanostructures; absorption enhancement; FDTD simulations perovskite solar cells; surface plasmon polaritons; plasmonic nanostructures; absorption enhancement; FDTD simulations
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MDPI and ACS Style

Shen, T.; Tan, Q.; Dai, Z.; Padture, N.P.; Pacifici, D. Arrays of Plasmonic Nanostructures for Absorption Enhancement in Perovskite Thin Films. Nanomaterials 2020, 10, 1342. https://doi.org/10.3390/nano10071342

AMA Style

Shen T, Tan Q, Dai Z, Padture NP, Pacifici D. Arrays of Plasmonic Nanostructures for Absorption Enhancement in Perovskite Thin Films. Nanomaterials. 2020; 10(7):1342. https://doi.org/10.3390/nano10071342

Chicago/Turabian Style

Shen, Tianyi, Qiwen Tan, Zhenghong Dai, Nitin P. Padture, and Domenico Pacifici. 2020. "Arrays of Plasmonic Nanostructures for Absorption Enhancement in Perovskite Thin Films" Nanomaterials 10, no. 7: 1342. https://doi.org/10.3390/nano10071342

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