Laser induced graphene hybrid materials for electronic devices

Patent metadata

Field	Value
Publication number	US-2019088420-A1
Application number	US-201515528320-A
Country	US
Kind code	A1
Filing date	Nov 27, 2015
Priority date	Nov 26, 2014
Publication date	Mar 21, 2019
Grant date	—

Abstract

In some embodiments, the present disclosure pertains to methods of producing a graphene hybrid material by exposing a graphene precursor material to a laser source to form a laser-induced graphene, where the laser-induced graphene is derived from the graphene precursor material. The methods of the present disclosure also include a step of associating a pseudocapacitive material (e.g., a conducting polymer or a metal oxide) with the laser-induced graphene to form the graphene hybrid material. The formed graphene hybrid material can become embedded with or separated from the graphene precursor material. The graphene hybrid materials can also be utilized as components of an electronic device, such as electrodes in a microsupercapacitor. Additional embodiments of the present disclosure pertain to the aforementioned graphene hybrid materials and electronic devices.

First claim

What is claimed is:

1 . A method of producing a graphene hybrid material, said method comprising:
exposing a graphene precursor material to a laser source to form a laser-induced graphene, wherein the laser-induced graphene is derived from the graphene precursor material; and associating a pseudocapacitive material with the laser-induced graphene.

2 . The method of claim 1 , wherein the graphene precursor material comprises a polymer.

3 . The method of claim 2 , wherein the polymer is selected from the group consisting of polymer films, polymer monoliths, polymer powders, polymer blocks, optically transparent polymers, homopolymers, vinyl polymers, block co-polymers, carbonized polymers, aromatic polymers, cyclic polymers, doped polymers, polyimide (PI), polyetherimide (PEI), polyether ether ketone (PEEK), and combinations thereof.

4 . The method of claim 1 , wherein the graphene precursor material is in the form of at least one of sheets, films, thin films, pellets, powders, coupons, blocks, monolithic blocks, composites, fabricated parts, electronic circuit substrates, flexible substrates, rigid substrates, and combinations thereof.

5 . The method claim 1 , wherein the graphene precursor material comprises a polymer film.

6 . The method of claim 1 , wherein the graphene precursor material is chosen such that an absorbance band in the graphene precursor material matches the excitation wavelength of the laser source.

7 . The method of claim 1 , wherein the laser source is selected from the group consisting of a solid state laser source, a gas phase laser source, an infrared laser source, a CO 2 laser source, a UV laser source, a visible laser source, a fiber laser source, and combinations thereof.

8 . The method of claim 1 , wherein the laser source is a CO 2 laser source.

9 . The method of claim 1 , wherein the exposing comprises tuning one or more parameters of the laser source.

10 . The method of claim 9 , wherein the one or more parameters of the laser source are selected from the group consisting of laser wavelength, laser power, laser energy density, laser pulse width, gas environment, gas pressure, gas flow rate, and combinations thereof.

11 . The method of claim 10 , wherein a wavelength of the laser source is tuned to match an absorbance band of the graphene precursor material.

12 . The method of claim 1 , wherein the exposing comprises exposing a surface of the graphene precursor material to a laser source, wherein the exposing results in formation of the laser-induced graphene on the surface of the graphene precursor material.

13 . The method of claim 12 , wherein the exposing comprises patterning the surface of the graphene precursor material with the laser-induced graphene.

14 . The method of claim 12 , wherein the patterning results in the formation of an interdigitated structure on the surface of the graphene precursor material.

15 . The method of claim 1 , wherein the laser-induced graphene is embedded with the graphene precursor material.

16 . The method of claim 1 , wherein the exposing results in conversion of the entire graphene precursor material to laser-induced graphene.

17 . The method of claim 1 , wherein the laser-induced graphene is separated from the graphene precursor material.

18 . The method of claim 17 , wherein the exposing results in the separation of the formed laser-induced graphene from the remaining graphene precursor material.

19 . The method of claim 17 , further comprising a step of separating the formed laser-induced graphene from the graphene precursor material.

20 . The method of claim 1 , wherein the laser-induced graphene is selected from the group consisting of single-layered graphene, multi-layered graphene, double-layered graphene, triple-layered graphene, doped graphene, porous graphene, unfunctionalized graphene, pristine graphene, functionalized graphene, oxidized graphene, turbostratic graphene, graphene coated with metal nanoparticles, graphene metal carbides, graphene metal oxides, graphene films, graphene powders, porous graphene powders, porous graphene films, graphite, and combinations thereof.

21 . The method of claim 1 , wherein the laser-induced graphene comprises a porous graphene.

22 . The method of claim 1 , wherein the laser-induced graphene has a surface area ranging from about 100 m 2 /g to about 3,000 m 2 /g.

23 . The method of claim 1 , wherein the laser-induced graphene has a thickness ranging from about 0.3 nm to about 1 cm.

24 . The method of claim 1 , wherein the laser-induced graphene comprises a polycrystalline lattice.

25 . The method of claim 24 , wherein the polycrystalline lattice comprises ring structures selected from the group consisting of hexagons, heptagons, pentagons, and combinations thereof.

26 . The method of claim 1 , wherein the pseudocapacitive material is selected from the group consisting of polymers, conducting polymers, metals, metal oxides, metal chalcogenides, metal salts, metal carbides, transition metals, transition metal oxides, transition metal chalcogenides, transition metal salts, transition metal carbides, heteroatoms, organic additives, inorganic additives, metal organic compounds, and combinations thereof.

27 . The method of claim 1 , wherein the pseudocapacitive material comprises a conducting polymer.

28 . The method of claim 27 , wherein the conducting polymer is selected from the group consisting of polyaniline, polythiophene, polypyrrole, polyacetylene, and combinations thereof.

29 . The method of claim 27 , wherein the conducting polymer comprises polyaniline.

30 . The method of claim 1 , wherein the pseudocapacitive material comprises a metal oxide.

31 . The method of claim 30 , wherein the metal oxide is selected from the group consisting of iron oxide, magnesium oxide, copper oxide, cobalt oxide, nickel oxide, ruthenium oxide, magnetite, ferric oxyhydroxide, manganese dioxide, titanium oxide, vanadium oxide, platinum oxide, palladium oxide, and combinations thereof.

32 . The method of claim 30 , wherein the metal oxide comprises ferric oxyhydroxide.

33 . The method of claim 30 , wherein the metal oxide comprises manganese dioxide.

34 . The method of claim 1 , wherein the associating occurs before the formation of the laser-induced graphene.

35 . The method of claim 1 , wherein the associating occurs during the formation of the laser-induced graphene.

36 . The method of claim 1 , wherein the associating occurs after the formation of the laser-induced graphene.

37 . The method of claim 1 , wherein the associating occurs by a method selected from the group consisting of electrochemical deposition, coating, spin coating, spraying, spray coating, patterning, thermal activation, and combinations thereof.

38 . The method of claim 1 , wherein the associating comprises electrochemical deposition.

39 . The method of claim 38 , wherein the electrochemical deposition occurs by a method selected from the group consisting of cyclic voltammetry, linear sweep voltammetry, chronopotentiometry, chronoamperometry, chronocoulometry, and combinations thereof.

Assignees

• Tour James M
• Li Lei
• Peng Zhiwei
• Zhang Jibo
• Univ Rice William M

Inventors

• Tour James M
• Li Lei
• Peng Zhiwei
• Zhang Jibo

Classifications

• H01G11/36 Primary

  Nanostructures, e.g. nanofibres, nanotubes or fullerenes · CPC title

• C01B32/194

  After-treatment · CPC title

• C01B2204/22

  Electronic properties · CPC title

• H01M4/587

  for inserting or intercalating light metals · CPC title

• C01B2204/32

  Size or surface area · CPC title