| 摘要 |
It is an object of the present invention to solve the problems of the conventional organic transistors, such as a low mobility, a high threshold voltage and fluctuation of a threshold voltage in driving for a long period. The field-effect organic transistor of the present invention comprises 3 electrodes being source, drain and gate electrodes, a gate insulating layer and an organic semiconductor layer, wherein the organic semiconductor layer contains an organic semiconductor having 2 or more repeating units, each of the repeating units having a condensed aromatic ring compound having 10 or more conjugate double bonds and 3 two-fold axes.
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