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.
Claims5
A method of manufacturing a transistor, comprising:
- printing a conductor ink having silver nanoparticles on a substrate, the silver nanoparticles having integrated dipolar surfactants that increase the work function of the silver nanoparticles to form source and drain electrodes, wherein the printing is done without any surface treatment of the substrate to improve a work function of the source and drain electrodes prior to the printing;
- 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 single 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.