Nonlinear optical properties of intriguing Ru sigma-acetylide complexes and the use of a photocrosslinked polymer as a springboard to obtain SHG active thin films
Articolo
Data di Pubblicazione:
2016
Citazione:
Nonlinear optical properties of intriguing Ru sigma-acetylide complexes and the use of a photocrosslinked polymer as a springboard to obtain SHG active thin films / A. Colombo, C. Dragonetti, D. Marinotto, S. Righetto, G. Griffini, S. Turri, H. Akdas Kilig, J. Fillaut, A. Amar, A. Boucekkine, C. Katan. - In: DALTON TRANSACTIONS. - ISSN 1477-9226. - 45:27(2016), pp. 11052-11060.
Abstract:
This work reports on the design, synthesis and photo-physical properties of two ruthenium σ-alkynyl complexes. It is shown that, despite similar optical absorption features recorded in solution, the introduction of a benzaldehyde moiety leads to an improved non-linear optical (NLO) response as measured by Electric Field Induced Second Harmonic (EFISH) generation and Third Harmonic Generation (THG) at 1.907 μm, both related to the second order hyperpolarizability. These structure-property relationships are rationalized based on few state modelling. Complex 2 is subsequently processed to afford composite films that demonstrate a χ2 of 1.4 pm V-1, quite remarkable given the ease of film processing implemented in this work.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
molecular quadratic hyperpolarizabilities; trade-off optimization; ray crystal-structure; organometallic complexes; building-blocks; metal-complexes; cubic hyperpolarizabilities; 2nd-harmonic generation; ruthenium complexes; alkynyl complexes
Elenco autori:
A. Colombo, C. Dragonetti, D. Marinotto, S. Righetto, G. Griffini, S. Turri, H. Akdas Kilig, J. Fillaut, A. Amar, A. Boucekkine, C. Katan
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