Patent ID: 6946207
Filing Date: 2005-09-20
Classification: C09K,H01L,H05B,Y10S

Abstract:
1. An electroconductive device, comprising: a pair of oppositely disposed electrodes, and a luminescence layer and an electroconductive layer disposed between the electrodes, wherein the electroconductive layer comprises a mixture of a plurality of organic compounds which are mutually intermolecularly structural isomers having an identical ring structure and an identical rational formula but having structures different in the manner in which their atoms are linked, and said plurality of organic compounds include a major component and a minor component, the mixture comprising the major and minor components in a (major component)/(minor component) ratio of 1/1 to 9/1, and wherein the organic compounds are represented by the following formula (1): wherein Ar denotes a connected ring structure comprising two single rings connected with each other via a single bond or two fused rings connected with each other via a single bond; X and X′ independently denote a single bond, —O—, —S—, —OOC— or —COO—; R and R′ independently denote —H, —F or a linear or branched alkyl group having 1-20 carbon atoms capable of including one methylene group which can be replaced with —O—, —S—, —CH═CH— or —C≡C; and m and n are an integer of 1-8, with the proviso that R and R′ cannot be —H at the same time when X and X′ are a single bond.