International Business Machines Corporation

King Abdulaziz City for Science and Technology

John David Bass

Robert Dennis Miller

Ho-Cheol Kim

Qing Song

John Campbell Scott

Xin Ai

Gregory Michael Wallraff

Linda Karin Sundberg

Abdulaziz Bagabas

Mohammed Abdullah Bahattab

Bobby E Feller

Fahhad H Alharbi

A method may include exposing a porous, carbon-containing material to a fuel source and an oxidizing agent; allowing the porous, carbon-containing material to adsorb at least some of the fuel source; and heating the porous, carbon-containing material to a temperature at which combustion of the adsorbed fuel source occurs, so that the porous, carbon-containing material is homogeneously oxidized throughout its thickness. Another method may include exposing a microporous, carbon-containing material to a fuel and an oxidizing agent, allowing the microporous, carbon-containing material to adsorb at least some of the fuel, and heating the microporous, carbon-containing material to a temperature at which combustion of the fuel occurs, to seal pores of the microporous, carbon-containing material adjacent to its surface.

Oxidation of porous, carbon-containing materials using fuel and oxidizing agent

A method of forming CuFeSchalcopyrite nanoparticles. The method includes, in the presence of one or more ligands, reacting an iron-containing compound, a copper-containing compound and a sulfur-containing compound to form CuFeSchalcopyrite nanoparticles; and wherein at least one of the ligands forms a coordination complex with copper, and at least one of the ligands forms a coordination complex with iron. Also a method of forming metal-doped CuFeSchalcopyrite nanoparticles such as Zn-doped CuFeSchalcopyrite nanoparticles. Also, a CuFeSchalcopyrite nanoparticle layer on a substrate. Also, a composition of matter including Zn-doped CuFeSchalcopyrite nanoparticles. Also, a Zn-doped CuFeSchalcopyrite nanoparticle layer on a substrate.

Methods for making doped and undoped copper chalcopyrite nanoparticles and thin films thereof

Compositions are disclosed having the formula (3):[C'][Ta(O)(L&#x2032;)]&#x2003;&#x2003;(3),wherein x is an integer of 1 to 4, y is an integer of 1 to 4, Ta(O)(L&#x2032;)has a charge of 0 to &#x2212;3, C&#x2032; is a counterion having a charge of +1 to +3, k is an integer of 0 to 3, L&#x2032; is an oxidatively stable organic ligand having a charge of 0 to &#x2212;4, and L&#x2032; comprises an electron donating functional group selected from the group consisting of carboxylates, alkoxides, amines, amine oxides, phosphines, phosphine oxides, arsine oxides, and combinations thereof. The compositions have utility as high resolution photoresists.

Metal peroxo compounds with organic co-ligands for electron beam, deep UV and extreme UV photoresist applications

Nanoparticles in a colloid are purified, with the colloid including a fluid, unwanted matter, and the nanoparticles to be purified. An electric field is applied that is substantially spatially uniform over a distance that is at least equal to a characteristic dimension of the nanoparticles, so that at least some of the nanoparticles move towards at least one collection surface as a result of the force arising between their electrical charge and the electric field, whereupon nanoparticles are collected on said at least one collection surface. The collection surface(s) may be one or more electrodes to which a voltage potential is applied. The collected nanoparticles are then removed from the collection surface, e.g., by dispersing them into another fluid.

Method of purifying nanoparticles in a colloid

Layered nanostructures are constructed by imprinting material with a mold, while selectively modifying and removing a portion of the mold. The mold, which includes a pattern of features, is modified so that the portion of the mold that includes the features is made chemically and/or physically distinct from the rest of the mold. That portion of the mold that includes the features is retained while the rest of the mold is removed. The retained portion of the mold provides mechanical support for any adjoining layer or layers.

Growing community of inventors

Union City, CA, United States of America

John David Bass