Patent ID: 7294449

Claim:
A radiation patternable functional material, comprising a compound of the formula (1): (R 1 —X 1 ) m NP(X 2 —R 2 —Y) n , (1) where NP comprises a nanoparticle of an electronically functional substance selected from the group consisting of semiconductors and metal; Y is a group that is photoreactive or that is reactive with a photochemically generated species and which, after first-order photoreaction or reacting with said photochemically generated species, materially changes the solubility characteristics of said compound in a developer; X 1 and X 2 are independently a nanoparticle-binding group; R 1 is a monovalent group that is not reactive with said photochemically generated species; R 2 is a divalent bridging group; m is at least 0, and the m instances of R 1 —X 1 may be the same or different; n is at least 1, and the n instances of X 2 —R 2 —Y may be the same or different; and m+n is at least 2; wherein, after irradiation, developing and curing, the functional material forms a patterned film of an electronically conducting or semiconducting material.