Methods for low-temperature graphene precipitation onto glass, and associated articles/devices
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-065/02
B32B-037/28
B32B-038/10
B32B-043/00
C01B-031/04
H01B-013/00
B82Y-030/00
B82Y-040/00
C23C-016/02
C23C-016/26
C23C-026/00
출원번호
US-0145626
(2013-12-31)
등록번호
US-9593019
(2017-03-14)
발명자
/ 주소
Veerasamy, Vijayen S.
출원인 / 주소
Guardian Industries Corp.
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
0인용 특허 :
105
초록▼
Certain example embodiments relate to methods for large area graphene precipitation onto glass, and associated articles/devices. For example, coated articles including graphene-inclusive films on substrates, and/or methods of making the same, are provided. A metal-inclusive catalyst layer (e.g., of
Certain example embodiments relate to methods for large area graphene precipitation onto glass, and associated articles/devices. For example, coated articles including graphene-inclusive films on substrates, and/or methods of making the same, are provided. A metal-inclusive catalyst layer (e.g., of or including Ni and/or the like) is disposed on the substrate. The substrate with the catalyst layer thereon is exposed to a precursor gas and a strain-inducing gas at a temperature of no more than 350-600 degrees C. for 10s or 100s of minutes. Graphene is formed and/or allowed to form both over and contacting the catalyst layer, and between the substrate and the catalyst layer, in making the coated article. The catalyst layer, together with graphene formed thereon, is removed, e.g., through excessive strain introduced into the catalyst layer as associated with the graphene formation. Products including such articles, and/or methods of making the same, also are contemplated.
대표청구항▼
1. A method of making a coated article comprising a graphene-inclusive film on a substrate, the method comprising: disposing a metal-inclusive catalyst layer on the substrate;heating the substrate with the metal-inclusive catalyst layer thereon;exposing the substrate with the catalyst layer thereon
1. A method of making a coated article comprising a graphene-inclusive film on a substrate, the method comprising: disposing a metal-inclusive catalyst layer on the substrate;heating the substrate with the metal-inclusive catalyst layer thereon;exposing the substrate with the catalyst layer thereon to a carbon-inclusive precursor gas;annealing the substrate with the catalyst layer thereon at a temperature of 350-600 degrees C. for a time period of 10 minutes to 3 hours; andforming graphene over and contacting the metal-inclusive catalyst layer, and between the substrate and the metal-inclusive catalyst layer, in making the coated article. 2. The method of claim 1, wherein the catalyst layer comprises Ni. 3. The method of claim 1, wherein the catalyst layer is substantially metallic and consists essentially of Ni. 4. The method of claim 1, wherein the catalyst layer comprises a-Ni:P. 5. The method of claim 1, wherein the catalyst layer comprises c-Ni. 6. The method of claim 1, wherein the substrate with the catalyst layer thereon is exposed to at least a strain-inducing gas, the carbon-inclusive precursor gas, or both, in one or more stages. 7. The method of claim 6, wherein a first stage comprises providing at least helium gas at a first flow rate, and a second stage comprises providing at least helium gas at a second flow rate and acetylene gas at a third flow rate, the first and second stages being provided in that order. 8. The method of claim 7, wherein the first flow rate is greater than the second and third flow rates, and the second flow rate is lower than the third flow rate. 9. The method of claim 7, wherein no or virtually no acetylene is provided in the first stage. 10. The method of claim 7, wherein a third stage is provided following the second stage, the third stage providing no helium and no acetylene. 11. The method of claim 10, wherein the temperature is significantly reduced over the course of the third stage. 12. The method of claim 6, wherein a first stage comprises providing at least the strain-inducing gas in order to induce strain in the catalyst layer, and a second stage comprises providing at least the strain-inducing gas at a second flow rate and the carbon-inclusive precursor gas at a third flow rate, the first and second stages being provided in that order. 13. The method of claim 12, wherein the first flow rate is greater than the second and third flow rates, and the second flow rate is lower than the third flow rate. 14. The method of claim 12, wherein no carbon-inclusive precursor gas is provided in the first stage. 15. The method of claim 12, wherein a third stage is provided following the second stage, the third stage providing no strain-inducing gas and no carbon-inclusive precursor gas, the temperature being significantly reduced during the third stage. 16. The method of claim 1, wherein the metal-inclusive catalyst layer has a smoothness on the order of the smoothness of glass. 17. The method of claim 1, wherein the metal-inclusive catalyst layer has a smoothness that is at least as smooth as the substrate. 18. The method of claim 17, wherein the substrate is a glass substrate. 19. The method of claim 1, wherein the annealing is performed in the presence of He in order to induce strain in the metal-inclusive catalyst layer. 20. The method of claim 1, further comprising separating the metal-inclusive catalyst layer and the graphene formed thereon from the underlying graphene and the substrate by inducing excess strain in the metal-inclusive catalyst layer. 21. The method of claim 1, further comprising: cooling the substrate with the graphene thereon; andapplying an adhesive-backed material to the uppermost graphene. 22. The method of claim 21, further comprising separating the metal-inclusive catalyst layer and the graphene formed thereon from the underlying graphene and the substrate by removing the adhesive-backed material. 23. A method of making a coated article comprising a graphene-inclusive film on a substrate, the method comprising: disposing a metal-inclusive catalyst layer on the substrate, the metal-inclusive catalyst layer being substantially metallic and comprising Ni;heating the substrate with the metal-inclusive catalyst layer thereon;exposing the substrate with the catalyst layer thereon to a carbon-inclusive precursor gas;annealing the substrate with the catalyst layer thereon at a temperature of 350-600 degrees C. for a time period of 10s or 100s of minutes; andforming graphene over and contacting the metal-inclusive catalyst layer, and between the substrate and the metal-inclusive catalyst layer;cooling the substrate with the graphene thereon; andafter the substrate with the graphene thereon has cooled, (a) separating the metal-inclusive catalyst layer and the graphene formed thereon from the underlying graphene and the substrate by inducing excess strain in the metal-inclusive catalyst layer, (b) applying an adhesive-backed material to the uppermost graphene, or (c) both. 24. The method of claim 23, wherein an adhesive-backed material is applied to the uppermost graphene and further comprising separating the metal-inclusive catalyst layer and the graphene formed thereon from the underlying graphene and the substrate by removing the adhesive-backed material. 25. A method of making an electronic device, the method comprising: providing a coated article in accordance with the method of claim 22; andbuilding the coated article into the device. 26. The method of claim 25, wherein the electronic device is a display device, photovoltaic device, or touch screen device. 27. A method of making a window, the method comprising: providing a coated article in accordance with the method of claim 1. 28. The method of claim 27, wherein an infrared (IR) reflecting layer sandwiched between at least first and second dielectric layers is disposed on the substrate such that the catalyst layer is provided over at least the IR reflecting layer. 29. The method of claim 28, wherein the graphene-inclusive film is formed over the IR reflecting layer. 30. The method of claim 28, wherein the IR reflecting layer comprises Ag. 31. A method of making a coated article comprising a graphene-inclusive film on a substrate, the method comprising: disposing a metal-inclusive catalyst layer on the substrate;exposing the substrate with the catalyst layer thereon to a carbon-inclusive precursor gas;annealing the substrate with the catalyst layer thereon at a temperature of 350-600 degrees C. for a time period of 10s or 100s of minutes; andforming graphene over and contacting the catalyst layer, and between the substrate and the catalyst layer; andmechanically delaminating from the substrate the catalyst layer and the graphene on the catalyst layer, so that the graphene formed between the substrate and the catalyst layer remains on the substrate following the mechanical delaminating, in making the coated article,wherein the catalyst layer is engineered to have a stress that facilitates the mechanical delaminating.
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