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Plasmonic Nanospirals: Weakening Circular Dichroism of Plasmonic Nanospirals Induced by Surface Grafting with Alkyl Ligands (Small 48/2016)
Author(s) -
Lau WaiFung,
Yang Lin,
Bai Fan,
Huang Zhifeng
Publication year - 2016
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201670255
Subject(s) - circular dichroism , alkyl , plasmon , ligand (biochemistry) , photochemistry , materials science , crystallography , chemistry , stereochemistry , optoelectronics , organic chemistry , receptor , biochemistry
Silver nanospirals with strong chiroptical activity, characterized by circular dichroism, are grafted with achiral alkyl ligands to cause chiroptical activity to weaken, as presented by Z. F. Huang and co‐workers on page 6698. The chiroptical weakening is exacerbated by the increasing bond energy of the Ag‐ligand contacts, which is ascribed to the effective medium screening effect and electron withdrawal towards the alkyl ligands.