English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/159029
Share/Impact:
Statistics
logo share SHARE   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

Ultrathin Semiconductor Superabsorbers from the Visible to the Near-Infrared

AuthorsMolet, Pau; García Pomar, Juan Luis CSIC ORCID; Matricardi, Cristiano; Garriga Bacardi, Miquel; Alonso Carmona, M. Isabel CSIC ORCID ; Mihi, Agustín CSIC ORCID
KeywordsBroadband absorption
Nanostructuring
Photonic crystal
Soft lithography
Issue Date12-Jan-2018
PublisherWiley-VCH
CitationAdvanced Materials: 10.1002/adma.201705876 (2018)
AbstractThe design of ultrathin semiconducting materials that achieve broadband absorption is a long-sought-after goal of crucial importance for optoelectronic applications. To date, attempts to tackle this problem consisted either of the use of strong—but narrowband—or broader—but moderate—light-trapping mechanisms. Here, a strategy that achieves broadband optimal absorption in arbitrarily thin semiconductor materials for all energies above their bandgap is presented. This stems from the strong interplay between Brewster modes, sustained by judiciously nanostructured thin semiconductors on metal films, and photonic crystal modes. Broadband near-unity absorption in Ge ultrathin films is demonstrated, which extends from the visible to the Ge bandgap in the near-infrared and is robust against angle of incidence variation. The strategy follows an easy and scalable fabrication route enabled by soft nanoimprinting lithography, a technique that allows seamless integration in many optoelectronic fabrication procedures.
Publisher version (URL)http://dx.doi.org/10.1002/adma.201705876
URIhttp://hdl.handle.net/10261/159029
ISSN0935-9648
Appears in Collections:(ICMAB) Artículos
Files in This Item:
File Description SizeFormat 
Molet_AdvMat_2018_editorial.pdfArtículo principal1,39 MBAdobe PDFThumbnail
View/Open
Molet_AdvMat_2018_suppl_editorial.pdfInformación complementaria2,1 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


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