NOVELTY - A thiophene derivative (I) is new.    USE - New thiophene derivative is used for organic electric device e.g. organic electroluminescent device, organic solar cell, organophotoreceptor and organic thin film transistor (all claimed).    ADVANTAGE - The organic electric device using the fluorene derivative has excellent durability, luminous efficiency and chromatic purity, and low driving voltage.    DETAILED DESCRIPTION - A thiophene derivative of formula (I) is new.    Ar1,Ar2,Ar3=6-60C aryl (optionally substituted by H, deuterium, halo, 1-20C alkyl, 1-20C alkoxy, 1-20C alkylamine, 1-20C alkyl thiophene, 6-20C aryl thiophene, 2-20C alkenyl, 2-20C alkynyl, 3-20C cycloalkyl, 6-20C aryl, 6-20C aryl (substituted with deuterium), 8-20C aryl alkenyl, silane, B, Ge or 2-20C heterocyclyl), 2-60C heterocyclyl, 2-20C alkenyl (optionally substituted by H, deuterium, halo, 1-20C alkyl, 2-20C alkenyl, 1-20C alkoxy, 6-20C aryl amine, 6-60C aryl, 6-20C aryl (substituted with deuterium), 8-20C aryl alkenyl, 2-20C heterocyclyl, nitrile or acetylene), 1-30C alkoxy or 1-50C alkyl, or fluorene (optionally substituted by H, deuterium, halo, 2-20C alkenyl, 1-20C alkoxy, 6-20C aryl, 6-20C aryl (substituted with deuterium), 7-20C arylalkyl, 8-20C aryl alkenyl, 1-50C alkyl, heterocyclyl, nitrile or acetylene);    L=6-60C aryl or 3-60C heteroaryl, fluorenyl (optionally substituted by H, deuterium, tritium, haloge, 2-20C alkenyl, 1-20C alkoxy, 6-20C aryl, 6-20C aryl (substituted with deuterium), 7-20C arylalkyl, 8-20C aryl alkenyl, 1-50C alkyl, 2-20C heterocyclyl, nitrile or acetylene), or divalent substituted or unsubstituted aliphatic hydrocarbyl;and    R1,R2=1-50C alkyl, 6-60C aryl (optionally substituted by H, deuterium, halo, 1-20C alkyl, 1-20C alkoxy , 1-20C alkyl amine, 1-20C alkyl thiophene, 6-20C aryl thiophene, 2-20C alkenyl, 2-20C alkynyl, 6-20C aryl, 6-20C aryl (substituted by deuterium), 8-20C aryl alkenyl, silane, B, Ge or 2-20C heterocyclyl), 2-60C heterocyclyl (optionally substituted by H, deuterium, halo, 1-20C alkyl, 2-20C alkenyl, 1-20C alkoxy, 6-20C aryl amine, 6-60C aryl, 6-20C aryl (substituted by deuterium), 7-20C arylalkyl, 8-20C aryl alkenyl, 2-20C heterocyclyl, nitrile, acetylene or hetero atom chosen from O, N, S, Si or P), 2-20C alkenyl or 6-30C aryloxy.    "Full definitions are given in DEFINITIONS - Full Definitions" section. An INDEPENDENT CLAIM is included for an organic electric device, which has one or more organic material layers containing the thiophene derivative (I).