Cabot Corporation

Anthony R James

Mark J Hampden-Smith

Toivo T Kodas

James F Caruso

Karel Vanheusden

Scott T Haubrich

Aaron Stump

Allen B Schult

Mark H Kowalski

Chuck Edwards

Klaus Kunze

Hyungrak Kim

Hyungrak Kiim

Nathan E Stott

Aaron D Stump

A composition for the fabrication of reflective features using a direct-write tool is disclosed. The composition comprises metal nanoparticles having an average particle size less than 300 nm and which carry thereon a polymer for substantially preventing agglomeration of the nanoparticles, wherein the nanoparticles exhibit a metal-polymer weight ratio of 100:1 to 10:1. The composition further includes a vehicle for forming a dispersion with the metal nanoparticles. A number of electronic devices comprising a reflective layer formed from the composition are also disclosed. One example case provides an electronic device having a reflective electrode. The reflective electrode comprises a percolation network of the metal nanoparticles embedded in a matrix of the polymer and having an average particle size of less than 300 nm, wherein the reflective electrode is reflective in the visible light range and does not diffract incident light.

Metal nanoparticle compositions for reflective features

A metal nanoparticle composition for the fabrication of conductive features. The metal nanoparticle composition advantageously has a low viscosity permitting deposition of the composition by direct-write tools. The metal nanoparticle composition advantageously also has a low conversion temperature, permitting its deposition and conversion to an electrical feature on polymeric substrates.

Metal nanoparticle compositions

The invention relates generally to a printing process. In particular, the invention relates to a printing process where a first-printed feature or vanishing trace causes a second-printed feature to have a smaller dimension than it would in the absence of the first-printed feature or vanishing trace.

Process for printing features with smaller dimensions

Processes for the production of metal nanoparticles. In one aspect, the invention is to a process comprising the steps of mixing a heated first solution comprising a base and/or a reducing agent (e.g., a non-polyol reducing agent), a polyol, and a polymer of vinyl pyrrolidone with a second solution comprising a metal precursor that is capable of being reduced to a metal by the polyol. In another aspect, the invention is to a process that includes the steps of heating a powder of a polymer of vinyl pyrrolidone; forming a first solution comprising the powder and a polyol; and mixing the first solution with a second solution comprising a metal precursor capable of being reduced to a metal by the polyol.

Production of metal nanoparticles

A process for the production of metal nanoparticles. The process comprises a rapid mixing of a solution of at least about 0.1 mole of a metal compound that is capable of being reduced to a metal by a polyol with a heated solution of a polyol and a substance that is capable of being adsorbed on the nanoparticles.

A process for the production of metal nanoparticles. Nanoparticles are formed by combining a metal compound with a solution that comprises a polyol and a substance that is capable of being adsorbed on the nanoparticles. The nanoparticles are precipitated by adding a nanoparticle-precipitating liquid in a sufficient amount to precipitate at least a substantial portion of the nanoparticles and of a protic solvent in a sufficient amount to improve the separation of the nanoparticles from the liquid phase.

Growing community of inventors

Rio Rancho, NM, United States of America

Anthony R James