Printable nanoparticle conductor ink with improved charge injection
AssigneesXerox Corporation, Palo Alto Research Center Incorporated
InventorsTSE NGA NG, PING MEI, YILIANG WU, BIBY ESTHER ABRAHAM
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Abstract
A transistor has a substrate, source and drain electrodes on the substrate, the source and drain electrodes formed of a conductor ink having silver nanoparticles with integrated dipolar surfactants, an organic semiconductor forming a channel between the source and drain electrodes, the organic semiconductor in contact with the source and drain electrodes, a gate dielectric layer having a first surface in contact with the organic semiconductor, and a gate electrode in contact with a second surface of the gate dielectric layer, the gate electrode formed of silver nanoparticles with integrated dipolar surfactants.
Claims12
A transistor, comprising:
- a substrate;
- source and drain electrodes on the substrate, the source and drain electrodes formed of a conductor ink having silver nanoparticles with integrated dipolar surfactants, wherein the integrated dipolar surfactants are selected to increase the work function of the silver nanoparticles;
- an organic semiconductor forming a channel between the source and drain electrodes, the organic semiconductor in contact with the source and drain electrodes;
- a gate dielectric layer having a first surface in contact with the organic semiconductor;
- and
- a gate electrode in contact with a second surface of the gate dielectric layer, the gate electrode formed of silver nanoparticles with integrated dipolar surfactants.
A method of manufacturing a transistor, comprising:
- printing a conductor ink having silver nanoparticles with integrated dipolar surfactants to form source and drain electrodes, wherein the integrated dipolar surfactants increase the work function of the silver nanoparticles;
- forming a channel between the source and drain electrodes by printing an organic semiconductor, the organic semiconductor in contact with the source and drain electrodes;
- forming a layer of gate dielectric having a first surface, the first surface in contact with the source and drain electrodes;
- and
- printing the conductor ink to form a gate electrode in contact with a second surface of the gate dielectric.
Dependencies are inferred from the claim text.