Layer by layer self-assembly of large response molecular electro-optic materials by a desilylation strategy
AssigneeNorthwestern University
InventorsTobin J. Marks, Milko E. van der Boom
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Abstract
The preparation of robust, thin film materials with large second-order optical nonlinearities through the covalent self-assembly of chromophoric compositions and innovative use of silyl chemistry.
Claims17
A method of using silyl chemistry to control the reactivity of a self-assembled molecular electro-optic material, said method comprising:
- providing an electro-optic material comprising a silyl-derivatized chromophore;
- desilylating said chromophore compound to generate terminal hydroxy functionalities;
- and
- reacting said hydroxy functionalities with a reagent having at least one silicon moiety.
A non-linear optical material comprising a plurality of molecular bilayers, each said bilayer comprising a first chromophore molecular layer coupled to a capping molecular layer with a siloxane bond sequence, said capping molecular layer directly coupled to another chromophore molecular layer with a siloxane bond sequence.
A chromophore composition with non-linear optical properties having the structural formula (Ch)XRn, wherein (Ch)X comprises a pyridinium chromophore substructure and X is a heteroatom;
- R is a trialkylsiloxyalkyl moiety;
- and n is the number of said moieties meeting the valence requirement of said heteroatom.
Dependencies are inferred from the claim text.