Covalent-Cross-Linked
Plasmene Nanosheets
Yiyi Liu
Bo Fan
Qianqian Shi
Dashen Dong
Shu Gong
Bowen Zhu
Runfang Fu
San H. Thang
Wenlong Cheng
10.1021/acsnano.9b01343.s003
https://acs.figshare.com/articles/journal_contribution/Covalent-Cross-Linked_Plasmene_Nanosheets/8242676
Thiol-polystyrene
(SH-PS)-capped plasmonic nanoparticles can be
fabricated into free-standing, one-nanoparticle-thick superlattice
sheets (termed plasmene) based on physical entanglement between ligands,
which, however, suffer from irreversible dissociation in organic solvents.
To address this issue, we introduce coumarin-based photo-cross-linkable
moieties to the SH-PS ligands to stabilize gold nanoparticles. Once
cross-linked, the obtained plasmene nanosheets consisting of chemically
locked nanoparticles can well maintain structural integrity in organic
solvents. Particularly, arising from ligand-swelling-induced enlargement
of the interparticle spacing, these plasmene nanosheets show significant
optical responses to various solvents in a specific as well as reversible
manner, which may offer an excellent material for solvent sensing
and dynamic plasmonic display.
2019-05-30 00:00:00
SH-PS ligands
gold nanoparticles
one-nanoparticle-thick superlattice sheets
interparticle spacing
ligand-swelling-induced enlargement
Covalent-Cross-Linked Plasmene Nanosheets Thiol-polystyrene
solvent
plasmonic display
plasmene nanosheets show
plasmene nanosheets
coumarin-based photo-cross-linkable moieties