Search Results - james+watkins

This invention provides a novel method for the formation of graphene films, high-quality graphene films made thereby, and applications thereof.

This invention provides polymer-nanoparticle hybrid materials with high structural order for photovoltaic, battery and other applications.

Cold Spray technology is a deposition process in which metal powder particles are accelerated by injection into a high-velocity stream of gas at temperatures below their melting point through a de Laval nozzle. However, clogging in the inside of the nozzle during the deposition process presents a significant challenge for this technology. This UMass Amherst invention provides a new method, device and system for active cooling of cold spray nozzles that can effectively prevent clogging and increase the operating life of the nozzles.

This invention provides highly scalable methods to fabricate 3-D lithium ion microbatteries and high surface-area electrodes for microbatteries. The methods involve imprint patterning nanoparticle-based inks using nanoimprint lithography to form high surface-area electrodes and 3-D microbatteries with well-engineered architectures. The 3-D microbatteries offer superior performance with greatly enhanced capacity and power, and can be rapidly charged and discharged.

This invention provides rapid and low cost methods to make porous media and carbon composite materials as high-performance components for energy storage, electronics, senors and other applications.

This invention provides a method to make low cost, durable master molds for micro- and nano-scale pattern transfer. The transferred pattern can have a variety of functional utilities such as manipulating wetting, adhesion an antimicrobial properties, inducing color, harvesting light, etc. The master molds can be created on flexible substrates, enabling additional opportunities including roll-to-roll embossing and use in blow molding and other operations.