Patent ID: 8758864

Claim:
A method for forming a semiconductor nanocrystal film on a substrate comprising: (a) dispersing semiconductor nanocrystals in an organic solvent, wherein the semiconductor nanocrystals are surface-coordinated with a compound containing a photosensitive functional group represented by Formula 1 below: X-A-B (1) wherein X is NC—, HOOC—, HRN—, POOOH—, RS— or RSS— (in which R is a hydrogen atom or a C 1˜10 saturated or unsaturated aliphatic hydrocarbon group); A is a direct bond, an aliphatic organic group, a phenylene group or a biphenylene group; and B is an organic group containing at least one carbon-carbon double bond, which may be substituted with at least one group selected from the group consisting of —CN, —COOH, halogen groups, C 1˜5 halogenated alkyl groups, amine groups, C 6˜15 aromatic hydrocarbon groups, and C 6˜12 aromatic hydrocarbon groups substituted with —F, —Cl, —Br, a halogenated alkyl group, R′O— (in which R′ is a hydrogen atom or a C 1˜5 alkyl group), —COOH, an amine group or —NO 2 ; (b) coating the substrate with the dispersion of the semiconductor nanocrystals in the organic solvent; (c) evaporating the organic solvent to form a nanoparticle film of the semiconductor nanocrystals on the substrate; and (d) exposing a predetermined area of the nanoparticle film to light, wherein a crosslinking reaction takes place in the predetermined area exposed to the light.