Patent ID: 8021915
Filing Date: 2011-09-20
Classification: H01L

Abstract:
1. A method of producing a field effect transistor, comprising: disposing a layer having polysiloxane on a substrate; disposing a porphyrin precursor in such a manner that the porphyrin precursor is in contact with the layer having polysiloxane; and providing the porphyrin precursor with energy to form an organic semiconductor layer, wherein the organic semiconductor layer and the layer having polysiloxane are laminated; and Bragg angles (2θ) of CuKα X-ray diffraction in the organic semiconductor layer have peaks at any one group of the following: (1) 8.3°±0.2°, 10.1°±0.2°, 11.8°±0.2°, and 14.4°±0.2°; (2) 8.4°±0.2°, 11.9°±0.2°, and 16.9°±0.2°; (3) 7.2°±0.2°, 7.8°±0.2°, 11.7°±0.2°, and 23.5°±0.2°; and (4) 7.3°±0.2°, 7.8°±0.2°, 11.7°±0.2°, and 19.6°±0.2°.