Title: Methods for preparation of concentrated graphene ink compositions and related composite materials

Abstract

A rapid, scalable methodology for graphene dispersion and concentration with a polymer-organic solvent medium, as can be utilized without centrifugation, to enhance graphene concentration.

Inventors:

Hersam, Mark C.; Liang, Yu Teng; Secor, Ethan B.; Prabhumirashi, Pradyumna L.; Puntambekar, Kanan P.; Geier, Michael L.; Ahn, Bok Y.; Lewis, Jennifer A.

Issue Date:

2018-02-27

Research Org.:

Northwestern Univ., Evanston, IL (United States); Harvard Univ., Cambridge, MA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1423454

Patent Number(s):

9902866

Application Number:

14/756,304

Assignee:

Northwestern University (Evanston, IL); President and Fellows of Harvard College (Cambridge, MA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B41 - PRINTING B41J - TYPEWRITERS

C - CHEMISTRY C09 - DYES C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS

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B - PERFORMING OPERATIONS B41 - PRINTING B41J - TYPEWRITERS

B41J2/01 - Ink jet

C - CHEMISTRY C09 - DYES C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS

C09D11/38 - characterised by non-macromolecular additives other than solvents, pigments or dyes
C09D11/14 - based on carbohydrates

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L51/0005 - {ink-jet printing}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES

H01B1/24 - the conductive material comprising carbon-silicon compounds, carbon or silicon

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L51/0045 - {Carbon containing materials, e.g. carbon nanotubes, fullerenes

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2006/32 - Thermal properties

C - CHEMISTRY C09 - DYES C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS

C09D11/52 - Electrically conductive inks

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B32/19 - by exfoliation

C - CHEMISTRY C09 - DYES C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS

C09D11/36 - based on non-aqueous solvents
C09D11/322 - Pigment inks

B - PERFORMING OPERATIONS B41 - PRINTING B41M - PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES

B41M5/0023 - {Digital printing methods characterised by the inks used

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DOE Contract Number:  

FG02-03ER15457

Resource Type:

Patent

Resource Relation:

Patent File Date: 2015 Aug 24

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE