Method for printing objects having laser-induced graphene (LIG) and/or laser-induced graphene scrolls (LIGS) materials

Patent metadata

Field	Value
Publication number	US-11807533-B2
Application number	US-202017102271-A
Country	US
Kind code	B2
Filing date	Nov 23, 2020
Priority date	Jun 21, 2016
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

Laser-induced graphene (LIG) and laser-induced graphene scrolls (LIGS) materials and, more particularly to LIGS, methods of making LIGS (such as from polyimide (PI)), laser-induced removal of LIG and LIGS, and 3D printing of LIG and LIGS using a laminated object manufacturing (LOM) process.

First claim

What is claimed is:

1. A method comprising:
(a) selecting a first substrate having a first laser-induce material disposed on a first side of the first substrate, wherein
(i) the first substrate is a first graphene precursor material that can be formed in to the first laser-induced material, and
(ii) the first laser-induced material is selected from a group consisting of laser-induced graphene (LIG), laser-induced graphene scrolls (LIGS) materials, and combinations thereof (LIG/LIGS);

(b) selecting a second substrate having a first side and a second side, wherein
(i) the second substrate is a second graphene precursor material that can be formed in to a second laser-induced material, and
(ii) the second laser-induced material is selected from a group consisting of LIG, LIGS, and LIG/LIGS;

(c) contacting the first laser-induced material on the first side of the first substrate with the first side of the second substrate; and
(d) exposing the second side of the second substrate to a first laser source to form a layer of the second laser-induced material upon the first laser-induced material.

2. The method of claim 1 , wherein, before contacting the first laser-induced material to the first side of the second substrate, the method further comprises a step of depositing a wetting liquid on one or both of (i) the first laser-induced material on the first side of the first substrate and (ii) the first side of the second substrate.

3. The method of claim 1 , wherein the method is a laminated object manufacturing process.

4. The method of claim 1 , wherein the step of selecting a first substrate having a first laser-induce material disposed on a first side of the first substrate comprises selecting the first substrate and exposing the first substrate to a second laser source to form the first laser-induce material disposed on the first side of the first substrate.

5. The method of claim 1 , wherein the steps (b)-(d) are repeated to form additional layers.

6. The method of claim 1 , wherein
(a) the first graphene precursor material is a first polymer;
(b) the second graphene precursor material is a second polymer; and
(c) the first polymer and the second polymer are the same polymer or different polymers.

7. The method of claim 6 , wherein each of the first polymer and the second polymer are selected from a group consisting of polymer films, polymer fibers, polymer monoliths, polymer powders, polymer blocks, optically transparent polymers, homopolymers, vinyl polymers, chain-growth polymers, step-growth polymers, condensation polymers, random polymers, ladder polymers, semi-ladder polymers, block co-polymers, carbonized polymers, aromatic polymers, cyclic polymers, doped polymers, polyimide (PI), polyetherimide (PEI), polyether ether ketone (PEEK), polyamide (PA), polybenzoxazole (PBO), polyaramids, and polymer composites and combinations thereof.

8. The method of claim 2 , further comprising a step of annealing to remove the wetting liquid.

9. The method of claim 1 , wherein the method fabricates a 3D graphene object.

10. The method of claim 9 , wherein the 3D graphene object has a thickness of at least 1 mm.

11. The method of claim 9 , wherein the 3D graphene object has a mass of at least about 3.5 mg and a porosity of at least about 1.3%.

12. The method of claim 11 , wherein the 3D graphene object is capable of having a 20 kPa stress applied in a first direction without any permanent deformation of the 3D graphene object.

13. The method of claim 9 , wherein the 3D object is selected from the group consisting of mechanical dampeners, conducive mechanical dampeners, heat conduction blocks, lightweight conductive blocks, templates for growth of biological cells, and composites for bone and neuron growth.

14. The method of claim 13 , wherein the biological cells are eukaryote or plant cells.

15. The method of claim 9 further comprising a step of incorporating the 3D graphene object into an electronic device.

16. The method of claim 15 , wherein the electronic device is selected from a group consisting of super capacitors, micro-supercapacitors, pseudo capacitors, batteries, micro batteries, lithium-ion batteries, sodium-ion batteries, magnesium-ion batteries, electrodes, conductive electrodes, sensors, lithium ion capacitors, photovoltaic devices, electronic circuits, fuel cell devices, thermal management devices, biomedical devices, and combinations thereof.

17. The method of claim 15 , wherein the electronic device is a micro-supercapacitor.

18. A method to form a 3D object comprising:
(a) performing a first process to make a laser-induced material, wherein the first process comprises
(i) selecting a first substrate having a first laser-induce material disposed on a first side of the first substrate, wherein
(A) the first substrate is a first graphene precursor material that can be formed in to the first laser-induced material, and
(B) the first laser-induced material is selected from a group consisting of laser-induced graphene (LIG), laser-induced graphene scrolls (LIGS) materials, and combinations thereof (LIG/LIGS);

(ii) selecting a second substrate having a first side and a second side, wherein
(A) the second substrate is a second graphene precursor material that can be formed in to a second laser-induced material, and
(B) the second laser-induced material is selected from a group consisting of LIG, LIGS, and LIG/LIGS;

(iii) contacting the first laser-induced material on the first side of the first substrate with the first side of the second substrate; and
(iv) exposing the second side of the second substrate to a first laser source to form a layer of the second laser-induced material upon the first laser-induced material; and

(b) performing a second process to remove a first portion of LIG or LIGS from the laser-induced material, wherein the second process comprises
(i) selecting the laser-induce material made by the first process, wherein the laser-induced material is selected from a group consisting of laser-induced graphene (LIG) materials, laser-induced graphene scrolls (LIGS) materials, and combinations thereof (LIG/LIGS materials); and
(ii) exposing the laser-induced material to a second laser source having a first wavelength to remove the first portion of LIG or LIGS from the laser-induced material.

19. The method of claim 18 further comprising a step of incorporating the 3D object into an electronic device.

Assignees

• Univ Rice William M

Inventors

• Tour James M
• Luong Duy X
• Subramanian Ajay

Classifications

• H10P14/20

  of semiconductor materials · CPC title

• H10P14/3406

  Carbon, e.g. diamond-like carbon · CPC title

• H10D62/882

  Graphene · CPC title

• B01D71/0211

  Graphene or derivates thereof · CPC title

• B01D71/0212

  Carbon nanotubes · CPC title