Organic semiconductor device and process for its production

摘要

An organic semiconductor device selected from organic diodes, organic field effect transistors, and devices comprising an organic diode and/or organic field effect transistor and a method of producing such a device are provided. The organic semiconductor device comprises at least one semiconducting layer based on a diketopyrrolopyrrole (DPP) polymer. The semiconducting layer may effectively be protected against degradation by radiation and/or oxidation by adding at least one stabilizing agent selected from hydroxybenzophenones, hydroxyphenyl benzotriazoles, oxalic acid anilides, hydroxyphenyl triazines, hindered phenols and/or merocyanines to the DPP polymer layer. The stabilization is effective both during production and during usage of the device, while the device's electronic properties are retained. The stabilizing agent is preferably a UV absorbing agent or an antioxidant or anti-radical agent known from the field of organic polymer technology.

主权项

1. An organic semiconductor device, comprising:
at least one of an organic diode and an organic field effect transistor, wherein the at least one of the organic diode and the organic field effect transistor comprises a semiconducting layer comprising a mixture comprising a diketopyrrolopyrrole (DPP) polymer and a stabilizing agent, the stabilizing agent being included in the mixture in an amount of from 0.0005 to 0.1 parts by weight per 1 part by weight of the DPP polymer, and the stabilizing agent is selected from the group consisting of a UV absorbing agent, an antioxidant, and an anti-radical agent.