Two-dimensional disorder for broadband, omnidirectional and polarization-insensitive absorption
Year: 2013
Authors: Pratesi F., Matteo Burresi, Kevin Vynck, Mauro Prasciolu, Massimo Tormen, and Diederik S. Wiersma
Autors Affiliation: Matteo Burresi,1,2,* Filippo Pratesi,1 Kevin Vynck,1,3 Mauro Prasciolu,4 Massimo Tormen,4 and Diederik S. Wiersma1,2
1European Laboratory for Non-linear Spectroscopy (LENS), Via N. Carrara 1, 50019 Sesto Fiorentino, Firenze, Italy
2Istituto Nazionale di Ottica (CNR-INO), Largo Fermi 6, 50125 Firenze, Italy
3current address: Institut Langevin, ESPCI ParisTech, 1 rue Jussieu, 75005 Paris, France
4IOM-CNR, Laboratorio TASC, S.S. 14 Km 163.5, 34149 Trieste, Italy
Abstract: The surface of thin-film solar cells can be tailored with photonic nanostructures to allow light trapping in the absorbing medium. This in turn increases the optical thickness of the film and thus enhances their absorption. Such a coherent light trapping is generally accomplished with deterministic photonic architectures. Here, we experimentally explore the use of a different nanostructure, a disordered one, for this purpose. We show that the disorder-induced modes in the film allow improvements in the absorption over a broad range of frequencies and impinging angles.
Journal/Review: OPTICS EXPRESS
Volume: 21 Pages from: A268 to: A275
KeyWords: Effective refractive index
Multiple scattering
Optical depth
Solar radiation
Thin film solar cells
Thin filmsDOI: 10.1364/OE.21.00A268Citations: 50data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-03-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here