| 摘要 |
<p>Semiconducting films are formed on a substrate by coating the substrate with a mixture of a semiconducting material (polymer PI) and a substance (plastiser compound 19) which results in a Tg of the resulting mixture which is lower than that o f the said material, and cross-linking the said material. Multilayer electronic devices may be produced by processes which comprise forming a cross-linked semiconducting film on a substrate in this way and forming a layer on the said film b y solution or suspension deposition of a second film forming material in which t he cross-linked semiconducting film is substantially insoluble in the solvent or suspending agent used in forming the second film. The invention may be used in making, for example, field effect transistors, light emitting diodes (LEDs), organic solar cells and organic lasers.</p> |
