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NANOSCALE, 2017 Functionalized mesoporous silica thin film as a tunable nonlinear optical material. Magdalena Laskowska, Iwan Kityk, Mateusz Dulski, Jarosław Jędryka, Artur Wojciechowski,. Jerzy Jelonkiewicz, Marcin Wojtyniak and Łukasz Laskowski.

Abstrakt: The article is about a novel material for application in optoelectronic devices: mesoporous silica in the form of thin films with vertically aligned channels containing anchored propyl-copper-phosphonate functional groups. We described a synthesis route and carried out characterization of the structure to obtain its

nonlinear optical (NLO) properties (second and third order harmonic generation). A quasi phase transition was found in the material resulting from modification of the functional group content. We also demonstrated that it is possible to modify NLO susceptibilities by tuning the distance between active polar units.


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