Organic field effect element having organic layers with different carrier concentrations
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United States of America Patent
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Oct 11, 1994
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N/A
app pub date -
Aug 13, 1992
filing date -
Aug 15, 1991
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Abstract
There is disclosed an organic field effect element having an large ON/OFF current ratio. The organic field effect element includes a source electrode and a drain electrode formed separately to each other, a first organic layer constituting a channel between the source and drain electrodes, a second organic layer formed to be adjacent to the channel and having a carrier concentration different from that of the first organic layer, and a gate electrode formed to be opposite to the channel through the second organic layer. Carriers are transferred between the second and first organic layers in response to a voltage applied to the gate electrode to change an electrical conductivity of the channel.
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