Electroactive soft material based on nano-segregation of planar/non-planar π-conjugated molecules

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Plastic electronics are recently attracting much attention, because of the characteristic properties which does not exist in ordinary electronic materials based on semiconductor silicon. For example, low production cost, facile tuning of the property by modification of the structure, and applicability of solution processing. We focus attention of “fused porphyrin oligomer” for such materials and developed a various kinds of liquid crystalline semiconductors. Example of the fascinating achievement include, (1)Liquid crystalline semiconductor which changes its p- and n-type semiconductor property only be the change of the side chains, (2) Liquid crystalline semiconductor with its absorption band in all visible region.