Organic field effect element.

摘要

There is disclosed an organic field effect element having an large ON/OFF current ratio. The organic field effect element includes a source electrode (14) and a drain electrode (15) formed separately to each other, a first organic layer (16) constituting a channel between the source and drain electrodes (14, 15), a second organic layer (13) formed to be adjacent to the channel and having a carrier concentration different from that of the first organic layer (16), and a gate electrode (12) formed to be opposite to the channel through the second organic layer (13). Carriers are transferred between the second and first organic layers (13, 16) in response to a voltage applied to the gate electrode (12) to change an electrical conductivity of the channel. <IMAGE>