There are provided an organic semiconductor structure comprising an
organic semiconductor layer, which is large in size and homogeneous and
has high charge transfer characteristics, a process for producing the
same, and an organic semiconductor device. The organic semiconductor
structure has, in at least a part thereof, an organic semiconductor layer
comprising an aligned liquid crystalline organic semiconductor material.
The liquid crystalline organic semiconductor material comprises an
organic compound having a core comprising L 6.pi. electron rings, M 8.pi.
electron rings, N 10.pi. electron rings, O 12.pi. electron rings, P
14.pi. electron rings, Q 16.pi. electron rings, R 18.pi. electron rings,
S 20.pi. electron rings, T 22.pi. electron rings, U 24.pi. electron
rings, and V 26.pi. electron rings, wherein L, M, N, O, P, Q, R, S, T, U,
and V are each an integer of 0 (zero) to 6 and L+M+N+O+P+Q+R+S+T+U+V=1 to
6. The liquid crystalline organic semiconductor material exhibits at
least one liquid crystal state at a temperature below the heat
decomposition temperature thereof.