Patent ID: 7482067

Claim:
An electroluminescent device, comprising: a pair of electrodes; and a light emitting layer interposed between said pair of electrodes, the light emitting layer comprising a light-emitting material and metal nanoparticles coated with an organic layer, the organic layer comprising at least one selected from the group consisting of substituted alkylamine of C1-C50, unsubstituted alkylamine of C1-C50,substituted alkylcycloalkylamine of C1-C50, unsubstituted alkylcycloalkylamine of C1-C50, 2-ethylhexylamine, 3,7-dimethyloctylamine, hexylamine, heptylamine, octylamine, dodecylamine, octadecylamine, 2-ethylhexylester, 3,7-dimethyloctylester, hexylester, heptylester, octylester, dodecylester, octadecylester, 2-ethylhexylamide, 3,7-dimethyloctylamide, hexylamide, heptylamide, octylamide, dodecylamide, octadecylamide, 4-methylcyclohexylamine, 4-(3′,7′)-dimethyloctylcyclohexylamine, 4-hexylcyclohexylamine, 4-heptylcyclohexylamine, 4-octylcyclohexylamine, 4-dodecylcyclohexylamine, 4-octadecylcyclohexylamine, 4-methylcyclohexylthiol, 4-(3′, 7′)-dimethyloctylcyclohexylthiol, 4-hexylcyclohexylthiol, 4-heptylcyclohexylthiol, 4-octylcyclohexylthiol, 4-dodecylcyclohexylthiol, 4-octadecylcyclohexylthiol, 4-methylcyclohexylalcohol, 4-(3′,7′)-dimethyloctylcyclohexylalcohol, 4-hexylcyclohexylalcohol, 4-heptylcyclohexylalcohol, 4-octylcyclohexylalcohol, 4-dodecylcyclohexylalcohol, 4-octadecylcyclohexylalcohol, 4-methylcyclohexylester, 4-(3′,7′)-dimethyloctylcyclohexylester, 4-hexylcyclohexylester, 4-heptylcyclohexylester, 4-octylcyclohexylester, 4-dodecylcyclohexylester, 4-octadecylcyclohexylester, 4-methylcyclohexylamide, 4-(3′,7′)-dimethyloctylcyclohexylamide, 4-hexylcyclohexylamide, 4-heptylcyclohexylamide, 4-octylcyclohexylamide, 4-dodecylcyclohexylamide, and 4-octadecylcyclohexylamide.