TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The organic electric device has an organic layer, primary electrode and secondary electrode. The organic layer comprises at least one of light-emitting layer, hole injection layer, hole-transport layer, electron injection layer and electron-transport layer. Preferred Definitions:    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 (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, acetylene or hetero atom chosen from O, N, S, Si or P), 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 (both optionally substituted by substituent (a)), 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);    substituent (a)=H, deuterium, halo, 1-20C alkyl, 2-20C alkenyl, 1-20C alkoxy, 6-60C aryl, 6-20C aryl (substituted with deuterium), 8-20C aryl alkenyl, 7-20C arylalkyl, 2-20C heterocyclyl, nitrile or acetylene;    L=6-60C aryl or 3-60C heteroaryl (both optionally substituted by substituent (b)), 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;    substituent (b)=nitro, nitrile, halo, 1-20C alkyl, 1-20C alkoxy, 6-20C aryl, 2-20C heterocyclyl or amino;and    R1,R2=1-50C alkyl (optionally substituted by H, deuterium, halo, 2-20C alkenyl, 1-20C alkoxy, 6-20C aryl, 6-20C aryl (substituted by deuterium), 7-20C arylalkyl, 8-20C aryl alkenyl, 2-20C heterocyclyl, nitrile or acetylene), 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 (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 or acetylene), 1-30C alkoxy (optionally substituted by H, deuterium, halo, 2-20C alkenyl, 1-20C alkoxy, 6-20C aryl, 6-20C aryl (substituted by deuterium), 7-20C arylalkyl, 8-20C aryl alkenyl, 2-20C heterocyclyl, nitrile or acetylene), or 6-30C aryloxy (optionally substituted by H, deuterium, halo, 2-20C alkenyl, 1-20C alkoxy, 6-20C aryl, 6-20C aryl (substituted by deuterium), 7-20C arylalkyl, 8-20C aryl alkenyl, 2-20C heterocyclyl, nitrile or acetylene).    Adjacent s of Ar1-Ar3 combined together to form (un)substituted, (un)saturated ring.    SPECIFIC COMPOUNDS - 150 Thiophene derivatives e.g. N-(4-(4-(diphenylamino)phenyl)phenyl)-7,7-dimethyl-N-phenyl-3,11-dithia-7-silatricyclo(6.3.0.02,6)undeca-1(8),2(6),4,9-tetraen-4-amine of formula (Ia), 7,7-dimethyl-N-(4-(4-(naphthalen-1-yl(phenyl)amino)phenyl)phenyl)-N-phenyl-3,11-dithia-7-silatricyclo(6.3.0.02,6)undeca-1(8),2(6),4,9-tetraen-4-amine, 7,7-dimethyl-N-(4-(4-(naphthalen-2-yl(phenyl)amino)phenyl)phenyl)-N-phenyl-3,11-dithia-7-silatricyclo(6.3.0.02,6)undeca-1(8),2(6),4,9-tetraen-4-amine, 7,7-dimethyl-N-phenyl-N-(4-(4-(phenyl(4-phenylphenyl)amino)phenyl)phenyl)-3,11-dithia-7-silatricyclo(6.3.0.02,6)undeca-1(8),2(6),4,9-tetraen-4-amine, and N-(4-(4-((7,7-dimethyl-3,11-dithia-7-silatricyclo(6.3.0.02,6)undeca-1(8),2(6),4,9-tetraen-4-yl)(phenyl)amino)phenyl)phenyl)-N-phenylpyridin-2-amine, are specifically claimed.