Patent ID: 8133549
Filing Date: 2012-03-13
Classification: C08J,H01L

Abstract:
1. A method of modifying a surface of an insulating material, semiconductor material, binary compound, ternary compound or a composite thereof, the surface being modified by grafting aromatic groups onto said surface, said aromatic groups optionally substituted by functional groups, the aromatic groups being grafted to the surface by a covalent bond, the graft resisting washing by ultrasound, said method comprising: placing said surface in contact with a diazonium salt, said diazonium salt carrying said aromatic group, at a concentration greater than 0.05 M; and reducing said diazonium salt by, (i) utilizing a reducer, (ii) photochemically irradiating a charge transfer complex formed from said diazonium salt, or (iii) treating said diazonium salt by ultrasound, to achieve grafting of said aromatic groups onto said surface, the surface being placed in the presence of the reduced diazonium salt for a time period of less than 60 minutes.