专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2468784A3 Process for realization of polymeric materials with second order nonlinear electro-optical properties and electro-optical devices made with said material 有权
标题翻译：一种制备聚合物材料的与第二阶非线性的电光特性，和电光装置由这种材料制造的过程
公开(公告)号：EP2468784A3
公开(公告)日：2013-04-17
申请号：EP11425299.2
申请日：2011-12-16
申请人： Selex Sistemi Integrati S.p.A.
发明人： Borbone, Fabio , Roviello Antonio , Centore Roberto , Carella Antonio , De Matteis Fabio , Casalboni Mauro , Stracci Glauco , Dispenza Massimiliano
IPC分类号： C08G18/10 , C08G18/16 , C08G18/38 , C08G18/76 , G02F1/361
CPC分类号： G02F1/361 , C08G18/10 , C08G18/32 , C08G18/3836 , C08G18/384 , C08G18/7621 , C08G18/7657 , G02F1/3615
摘要： Process for realization of polymeric materials with second order nonlinear electro-optical properties and electro-optical devices made with said material
The present concerns a process for realization of polymeric materials with second order nonlinear electro-optical properties comprising the following steps:
- mixing of a chromophore with nonlinear optical properties with two or three hydroxy groups in an isocyanate not reactive solvent containing an isocyanate compound with at least two isocianate groups in order one or more bi- or tri-isocyanate NLO chromophores to be obtained;
- isolation of said pure bi- or tri-isocyanate NLO chromophores obtained according to the above step;
- dissolution of said bi- or tri-isocyanate NLO chromophores obtained according to the above step in one or more isocyanate group not reactive solvents containing reactive substances consisting of acyl-substituted or unsubstituted formamides and/or acylamides bearing as nitrogen substituents, independently, one or more hydrogen atoms, one or more alkyls substituted or unsubstituted with isocyanate moiety not reactive groups, one or more phenyl groups substituted or unsubstituted with isocyanate moiety not reactive groups, in order to obtain a prepolymer mixture consisting of said not reactive solvents and reaction products of said NLO bi- or tri-isocyanate chromophores and said reactive substances;
- coating of a thin layer of said prepolymer mixture on a substrate and evaporation of said not reactive solvents;
- cross-linking and poling of said thin layer on substrate, by means of heating and application of an electric field, in order a cross-linked and poled thin layer to be obtained;
- cooling of said thin cross-linked and poled layer at ambient temperature maintaining the applied poling electric field;
- switching off the poling electric field.
The invention further concerns a process for the realization of an electro-optical device by definition of optical paths and driving electrodes in a polymeric material with second order nonlinear properties, comprising, following the steps of realization of said polymeric material with second order nonlinear electro-optical properties as previously defined, a step set of photolithographic definition and ionic erosion of said polymeric material, after a step for coating of a protecting buffer layer on said polymeric material layer, so as to maintain constantly embedded said layer of polymeric material in the areas involved in optical path realization during all the successive photolithographic definition and ionic erosion steps.

IPRDB

热门服务

关于我们

友情链接

联系方式