TECHNOLOGY FOCUS - ELECTRONICS - Preferred Device: The device further comprises a buffer layer between the first electrical contact layer and the active layer. Preferred Components: The active layer is a photoactive layer and further comprises a host material. The buffer layer comprises at least one electrically conductive polymer and at least one fluorinated acid polymer.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation: No general method for the preparation of the compound (I) is given in the specification. Preferred Definitions:    R1 and R3=branched 5-15C alkyl or 5-15C cycloalkyl;    R2 and R4=H;    Ar1 and Ar2=naphthyl, naphthylphenyl, phenylnaphthyl or a group of formula (ia);    Ar3 and Ar4 = selected from the group consisting of a single bond, naphthylene, naphthylphenylene, phenylnaphthylene, and a group of formula (ib).    SPECIFIC COMPOUNDS - 6 Compounds are specifically claimed as the compound (I), e.g. N,N'-bis-biphenyl-4-yl-N,N'-bis-(3-carbazol-9-yl-phenyl)-2,6-bis-(1,1-dimethyl-pentyl)-anthracene-9,10-diamine (IA), N,N'-bis-biphenyl-4-yl-N,N'-bis-(3-carbazol-9-yl-phenyl)-2,6-bis-(1,1-dimethyl-propyl)-anthracene-9,10-diamine, N,N'-bis-(3-carbazol-9-yl-phenyl)-2,6-bis-(1,1-dimethyl-pentyl)-N,N'-bis-(1,1';4',1'')terphenyl-4-yl-anthracene-9,10-diamine, 2,6-di-tert-butyl-N,N'-bis-(4-tert-butyl-phenyl)-N,N'-bis-(3-carbazol-9-yl-phenyl)-anthracene-9,10-diamine, and 2,6-di-adamantan-1-yl-N,N'-bis-(4-tert-butyl-phenyl)-N,N'-bis-(3-carbazol-9-yl-phenyl)-anthracene-9,10-diamine.    EXAMPLE - To 2,6-di-2-methylhexyl-9,10-dibromoanthracene (2.65 g) was added N-4-biphenyl, N-3-(9-carbazolyl)-phenyl-amine (4.15 g) and tert-BuONa (1 g) with toluene (100 ml). Then was added Pd2DBA3 (0.4 g, 0.4ITiM), P(t-Bu)3 (0.17 g) dissolved in toluene (10 ml). The resultant mix was heated at 80 degrees C under nitrogen for 1 hour. The solution was stirred overnight at room temperature. After work up N,N'-bis-biphenyl-4-yl-N,N'-bis-(3-carbazol-9-yl-phenyl)-2,6-bis-(1,1-dimethyl-pentyl)-anthracene-9,10-diamine was obtained.