Arrays of Plasmonic Nanostructures for Absorption Enhancement in Perovskite Thin Films
| Autor: | Tianyi Shen, Qiwen Tan, Zhenghong Dai, Nitin P. Padture, Domenico Pacifici |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Nanomaterials, Vol 10, Iss 7, p 1342 (2020) |
| Druh dokumentu: | article |
| ISSN: | 10071342 2079-4991 |
| DOI: | 10.3390/nano10071342 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|