Chiral
Plasmonic Films Formed by Gold Nanorods and
Cellulose Nanocrystals
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Abstract
Chiral
plasmonic films have been prepared by incorporating gold
nanorods (NRs) in a macroscopic cholesteric film formed by self-assembled
cellulose nanocrystals (CNCs). Composite NR-CNC films revealed strong
plasmonic chiroptical activity, dependent on the photonic properties
of the CNC host and plasmonic properties of the NRs. The plasmonic
chiroptical properties of the composite films were tuned by changing
the conditions of film preparation. The strategy presented herein
paves the way for the scalable and cost-efficient preparation of plasmonic
chiral materials