Ultrathin Dielectrics and the Application Thereof in Organic Field Effect Transistors

An organic field effect transistor comprising;

• a substrate;
• a source electrode;
• a drain electrode;
• a gate electrode;
• and
• an organic semiconductor material, there being arranged between the gate electrode and the organic semiconductor material a dielectric layer (gate dielectric) containing a self-assembled monolayer of an organic compound having an anchor group, a linker group, a head group, and an aliphatic orientating group, the anchor group, the linker group, the head group, and the aliphatic orientating group being combined with one another in the order stated.

A method for producing an organic field effect transistor, comprising:

• providing a substrate;
• depositing a gate electrode;
• contacting the gate electrode with a compound having an anchor group, a linker group, a head group, and an aliphatic orientating group, in order to obtain a monolayer of the organic compound that is self-assembled on the gate electrode;
• depositing an organic semiconductor material;
• and
• depositing and if necessary patterning a source electrode and a drain electrode.

A method for producing an organic field effect transistor, comprising:

• providing a substrate;
• depositing a gate electrode;
• contacting the gate electrode with a compound having an anchor group, a linker group, a head group, and an aliphatic orientating group, in order to obtain a monolayer of the organic compound that is self-assembled on the gate electrode;
• depositing and if necessary patterning a source electrode and a drain electrode;
• and
• depositing an organic semiconductor material.

An organic field effect transistor comprising;

• a substrate;
• a source electrode;
• a drain electrode;
• a gate electrode;
• and
• means for providing an organic semiconductor material, there being arranged between the gate electrode and the organic semiconductor material means a dielectric layer (gate dielectric) containing a self-assembled monolayer of an organic compound having an anchor group, a linker group, a head group, and an aliphatic orientating group, the anchor group, the linker group, the head group, and the aliphatic orientating group being combined with one another in the order stated.