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Two-dimensional disorder for broadband, omnidirectional and polarization-insensitive absorption

  Articoli su Riviste JCR/ISI  (anno 2013)

Autori:  Burresi M., Pratesi F., Vynck K, Prasciolu M., Tormen M., Wiersma D

Affiliazione Autori:  European Lab Nonlinear Spect LENS, I-50019 Florence, Italy; Ist Nazl Ottica CNR INO, I-50125 Florence, Italy; IOM CNR, Lab TASC, I-34149 Trieste, Italy

Riassunto:  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. (c) 2013 Optical Society of America

Rivista/Giornale:  OPTICS EXPRESS
Volume n.:  21 (5)      Pagine da: A268  a: A275
Ulteriori informazioni:  We wish to thank F. Riboli and G. Conley for fruitful discussions. This work is financially supported by the European Network of Excellence Nanophotonics for Energy Efficiency, the ERC through the Advance Grant PhotBots, ENI S.p.A. Novara, CNR-EFOR, and CNR-Fotonica2015.
DOI: 10.1364/OE.21.00A268

*Impact Factor della Rivista: (2013) 3.525   *Citazioni: 40
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  19/05/2019

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