Enhanced photoluminescence of Si nanocrystals-doped cellulose nanofibers by plasmonic light scattering
Abstract
We report the development of bio-compatible cellulose nanofibers doped with light emitting silicon nanocrystals and Au nanoparticles via facile electrospinning. By performing photoluminescence (PL) spectroscopy as a function of excitation wavelength, we demonstrate plasmon-enhanced PL by a factor of 2.2 with negligible non-radiative quenching due to plasmon-enhanced scattering of excitation light from Au nanoparticles to silicon nanocrystals inside the nanofibers. These findings provide an alternative approach for the development of plasmon-enhanced active systems integrated within the compact nanofiber geometry. Furthermore, bio-compatible light-emitting nanofibers prepared by a cost-effective solution-based processing are very promising platforms for biophotonic applications such as fluorescence sensing and imaging.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 27, 2015
- Source ID
- 10.1063/1.4927672
Entities
People
- Benedetto Marelli
- Björn M Reinhard
- Fiorenzo G Omenetto
- Giovanni Perotto
- Hiroshi Sugimoto
- Luca Dal Negro
- Minoru Fujii
- Ran Zhang
Organizations
- Air Force Office of Scientific Research
- Boston University
- Japan Society for the Promotion of Science
- Kobe University
- National Science Foundation
- Office of Naval Research
- Tufts University