Disordered cellulose based nanostructures for enhanced light scattering Journal Article

Author(s): Caixeiro, Soraya; Peruzzo, Matilda; Onelli, Olimpia D; Vignolini, Silvia; Sapienza, Riccardo
Article Title: Disordered cellulose based nanostructures for enhanced light scattering
Affiliation IST Austria
Abstract: Cellulose is the most abundant biopolymer on Earth. Cellulose fibers, such as the one extracted form cotton or woodpulp, have been used by humankind for hundreds of years to make textiles and paper. Here we show how, by engineering light-matter interaction, we can optimize light scattering using exclusively cellulose nanocrystals. The produced material is sustainable, biocompatible, and when compared to ordinary microfiber-based paper, it shows enhanced scattering strength (×4), yielding a transport mean free path as low as 3.5 μm in the visible light range. The experimental results are in a good agreement with the theoretical predictions obtained with a diffusive model for light propagation.
Keywords: Diffusion; scattering; cellulose nanocystals; disorder; photonic glass; photonics
Journal Title: ACS Applied Materials and Interfaces
Volume: 9
Issue 9
ISSN: 19448244
Publisher: American Chemical Society  
Date Published: 2017-03-08
Start Page: 7885
End Page: 7890
DOI: 10.1021/acsami.6b15986
Notes: The authors thank Michele Gaio, Giulia Guidetti, and Bruno Frka-Petesic for the fruitful discussions. This research was funded by the EPSRC (EP/M027961/1), the Leverhulme Trust (RPG-2014-238), Royal Society (RG140457), the BBSRC David Phillips fellowship (BB/K014617/1), and the European Research Council (ERC-2014-STG H2020 639088). All data created during this research are provided in full in the results section and Supporting Information. They are openly available from figshare and can be accessed at ref 30.
Open access: yes (repository)