Seed-mediated growth of patterned graphene nanoribbon arrays
US-9761669-B1 · Sep 12, 2017 · US
Graphene nanoribbons grown from aromatic molecular seeds
US11618681B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11618681-B2 |
| Application number | US-202117360108-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 28, 2021 |
| Priority date | Jun 28, 2021 |
| Publication date | Apr 4, 2023 |
| Grant date | Apr 4, 2023 |
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Abstract
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Methods for the bottom-up growth of graphene nanoribbons are provided. The methods utilize small aromatic molecular seeds to initiate the anisotropic chemical vapor deposition (CVD) growth of graphene nanoribbons having low size polydispersities on the surface of a growth substrate. The aromatic molecular seeds include polycyclic aromatic hydrocarbons (PAHs), functionalized derivatives of PAHs, heterocyclic aromatic molecules, and metal complexes of heterocyclic aromatic molecules.
First claim
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What is claimed is: 1. A method of growing graphene nanoribbons, the method comprising: depositing aromatic molecular seeds from the gas phase onto a surface of a growth substrate; and growing graphene nanoribbons from the aromatic molecular seeds via chemical vapor deposition. 2. The method of claim 1 , wherein the growth substrate is a germanium substrate. 3. The method of claim 1 , wherein the aromatic molecular seeds comprise polycyclic aromatic hydrocarbons (PAHs), functionalized derivatives of PAHs, heterocyclic aromatic molecules, metal complexes of heterocyclic aromatic molecules, or a combination thereof. 4. The method of claim 3 , wherein the graphene nanoribbons have a width of 5 nm or smaller. 5. The method of claim 4 , wherein the graphene nanoribbons have aspect ratios of at least 10. 6. The method of claim 3 , wherein the aromatic molecular seeds comprise perylenetetracarboxylic dianhydride, pentacene, or a combination thereof. 7. The method of claim 3 , wherein the graphene nanoribbons are grown from the polycyclic aromatic hydrocarbons. 8. The method of claim 7 , wherein the polycyclic aromatic hydrocarbons comprise pentacene. 9. The method of claim 3 , wherein the graphene nanoribbons are grown from the metal complexes of heterocyclic aromatic molecules. 10. The method of claim 9 , wherein the metal complexes of heterocyclic aromatic molecules comprise metal phthalocyanines. 11. The method of claim 1 , wherein the surface is a (001) facet or a miscut (001) facet. 12. The method of claim 2 , wherein the graphene nanoribbons have widths of 5 nm or smaller. 13. The method of claim 12 , wherein the graphene nanoribbons have aspect ratios of at least 10. 14. The method of claim 13 , wherein the growth substrate is a (001) facet or miscut (001) facet of the germanium substrate. 15. The method of claim 14 , wherein the aromatic molecular seeds comprise polycyclic aromatic hydrocarbons (PAHs), functionalized derivatives of PAHs, heterocyclic aromatic molecules, metal complexes of heterocyclic aromatic molecules, or a combination thereof. 16. The method of claim 14 , wherein the aromatic molecular seeds comprise polycyclic aromatic hydrocarbons (PAHs), metal complexes of heterocyclic aromatic molecules, or a combination thereof.
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Elements · CPC title
characterised by the substrate · CPC title
characterised by shape · CPC title
Graphene nanoribbons · CPC title
Manufacture or treatment of nanostructures · CPC title
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- What does patent US11618681B2 cover?
- Methods for the bottom-up growth of graphene nanoribbons are provided. The methods utilize small aromatic molecular seeds to initiate the anisotropic chemical vapor deposition (CVD) growth of graphene nanoribbons having low size polydispersities on the surface of a growth substrate. The aromatic molecular seeds include polycyclic aromatic hydrocarbons (PAHs), functionalized derivatives of PAHs,…
- Who is the assignee on this patent?
- Wisconsin Alumni Res Found
- What technology area does this patent fall under?
- Primary CPC classification C01B32/186. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 04 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).