English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/163430
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Hydroxypropyl cellulose photonic architectures by soft nanoimprinting lithography

AutorEspinha, André ; Dore, Camilla; Matricardi, Cristiano; Alonso Carmona, M. Isabel ; Goñi, Alejandro R. ; Mihi, Agustín
Palabras claveOptical materials
Photonic crystals
Fecha de publicación9-abr-2018
EditorNature Publishing Group
CitaciónNature Photonics: 10.1038/s41566-018-0152-1 (2018)
ResumenAs contamination and environmental degradation increase nowadays, there is a huge demand for new eco-friendly materials. Despite its use for thousands of years, cellulose and its derivatives have gained renewed interest as favourable alternatives to conventional plastics, due to their abundance and lower environmental impact. We report the fabrication of photonic and plasmonic structures by moulding hydroxypropyl cellulose into sub-micrometric periodic lattices, using soft lithography. This is an alternative way to achieve structural colour in this material which is usually obtained exploiting its chiral nematic phase. Cellulose based photonic crystals are biocompatible and can be dissolved in water or not depending on the derivative employed. Patterned cellulose membranes exhibit tuneable colours and may be used to boost the photoluminescence of a host organic dye. Furthermore, we show how metal coating these cellulose photonic architectures leads to plasmonic crystals with excellent optical properties acting as disposable surface enhanced Raman spectroscopy substrates.
Versión del editorhttp://dx.doi.org/10.1038/s41566-018-0152-1
Aparece en las colecciones: (ICMAB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Espinha_NatPhot_2018_popstprint.pdf4,63 MBAdobe PDFVista previa
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.