English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/181535
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Nano-cones for broadband light coupling to high index substrates

AuthorsBuencuerpo, Jerónimo CSIC ORCID; Torné, Lorena CSIC; Álvaro Bruna, Raquel CSIC ORCID ; Llorens Montolio, José Manuel CSIC ORCID; Dotor, María Luisa CSIC ORCID; Ripalda, José María CSIC ORCID
Issue Date7-Dec-2016
PublisherNature Publishing Group
CitationScientific Reports 6: 38682 (2016)
AbstractThe moth-eye structure has been proposed several times as an antireflective coating to replace the standard optical thin films. Here, we experimentally demonstrate the feasibility of a dielectric moth-eye structure as an antireflective coating for high-index substrates, like GaAs. The fabricated photonic crystal has Si3N4 cones in a square lattice, sitting on top of a TiO2 index matching layer. This structure attains 1.4% of reflectance power losses in the operation spectral range of GaAs solar cells (440–870 nm), a 12.5% relative reduction of reflection power losses in comparison with a standard bilayer. The work presented here considers a fabrication process based on laser interference lithography and dry etching, which are compatible with solar cell devices. The experimental results are consistent with scattering matrix simulations of the fabricated structures. In a broader spectral range (400–1800 nm), the simulation estimates that the nanostructure also significantly outperforms the standard bilayer coating (3.1% vs. 4.5% reflection losses), a result of interest for multijunction tandem solar cells.
Publisher version (URL)https://doi.org/10.1038/srep38682
URIhttp://hdl.handle.net/10261/181535
DOIhttp://dx.doi.org/10.1038/srep38682
E-ISSN2045-2322
Appears in Collections:(IMN-CNM) Artículos
Files in This Item:
File Description SizeFormat 
Nano-cones_buencuerpo.pdf920,61 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.