Ligand shell size effects on one- and two- photon excitation fluorescence of zwitterion functionalized gold nanoclusters (CROSBI ID 271647)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Perić, Martina ; Sanader Maršić, Željka ; Russier- Antoine, Isabelle ; Fakhouri, Hussein ; Bertorelle, Franck ; Brevet, Pierre-François ; le Guével, Xavier ; Antoine, Rodolphe ; Bonačić-Koutecký, Vlasta
engleski
Ligand shell size effects on one- and two- photon excitation fluorescence of zwitterion functionalized gold nanoclusters
Gold nanoclusters (Au NCs) are an emerging class of luminescent nanomaterials but still suffer from moderate photoluminescence quantum yields. Recent efforts have focused on tailoring their emission properties. Introducing zwitterionic ligands to cap the metallic kernel is an efficient approach to enhance their one-photon excitation fluorescence intensity. In this work, we extend this concept to the nonlinear optical regime, i.e., two-photon excitation fluorescence. For a proper comparison between theory and experiment, both ligand and solvent effects should be considered. The effects of ligand shell size and of aqueous solvent on the optical properties of zwitterion functionalized gold nanoclusters have been studied by performing quantum mechanics/molecular mechanics (QM/MM) simulations.
gold nanoclusters ; zwitterions ; linear spectra ; nonlinear spectra ; TD-DFT. DFT ; nanoscale ; OPA, TPA ; QMMM
This article is part of the themed collection: 2019 PCCP HOT Articles
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Podaci o izdanju
21 (43)
2019.
23916-23921
objavljeno
1463-9076
1463-9084
10.1039/c9cp05262c
Povezanost rada
Fizika, Interdisciplinarne prirodne znanosti