Liganded silver and gold quantum clusters. Towards a new class of nonlinear optical nanomaterials
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Beschreibung
Metallic quantum clusters belonging to intermediate size regime between two and few hundred of atoms, represent unique building blocks of new materials. Nonlinear optical (NLO) characteristics of liganded silver and gold quantum clusters reveal remarkable features which can be tuned by size, structure and composition. The two-photon absorption cross sections of liganded noble metal quantum clusters are several orders of magnitude larger than that of commercially-available dyes. Therefore, the fundamental photophysical understanding of those two-photon processes in liganded clusters with few metal atoms deserve special attention, in particularly in context of finding the mechanisms responsible for these properties. A broad range of state-of-the-art experimental methods to determine nonlinear optical properties (i.e. two-photon absorption, two-photon excited fluorescence and second harmonic generation) of quantum clusters are presented. The experimental setup and underlying physical concepts are described.
Furthermore, the theoretical models and corresponding approaches are used allowing to explain the experimental observations and simultaneously offering the possibility to deduce the key factors necessary to design new classes of nanoclusters with large NLO properties. Additionally, selected studied cases of liganded silver and gold quantum clusters with focus on their NLO properties will be presented as promising candidates for applications in imaging techniques such as fluorescence microscopy or Second-Harmonic Generation microscopy.
Presents a concise summary of cutting-edge research and practical applications across nonlinear optics of noble metal quantum clusters Introduces theoretical models to explain the experimental observations Offers case studies on silver and gold liganded clusters to highlight their nonlinear optical (NLO) properties
Presents a concise summary of cutting-edge research and practical applications across nonlinear optics of noble metal quantum clusters Introduces theoretical models to explain the experimental observations Offers case studies on silver and gold liganded clusters to highlight their nonlinear optical (NLO) properties Includes supplementary material: sn.pub/extras
Autor*in
Rodolphe Antoine
Themen in »Liganded silver and gold quantum clusters. Towards a new class of nonlinear optical nanomaterials«
Nonlinear optics Quantum nanoclusters Noble metal Two-photon process Quantum chemistry