Direct synthesis of highly conducting graphene nanoribbon thin films from graphene ridges and wrinkles
Source abstract
Abstract
Abstract We introduce a facile fabrication process for obtaining graphene nanoribbon (GNR) thin films on any substrate from solution-exfoliated graphene flakes with wrinkles or ridges. Copper nanoparticles (Cu-np's) grown on graphene films by radio-frequency sputtering adhere well on flat graphene surfaces, but not on graphene wrinkles and ridges. By etching the Cu-np's in nitric acid, we can remove the largest portions of flat graphene flakes, leaving behind only ridges and wrinkles as individual GNRs. The resulting GNRs are remarkably long and straight and, different from those obtained from graphene with other methods, are not oxidized. Two classes of GNRs are formed in our films: wide GNRs from planar ridges and narrow and straight GNRs from vertical wrinkles. Our GNR still retain the excellent electrical conductivity of pristine graphene.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Graphene research and applications · Graphene and Nanomaterials Applications · Supercapacitor Materials and Fabrication
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Graphene: status and prospects10.1126/science.1158877 ↗
2. Extremely high thermal conductivity of graphene10.1063/1.2907977 ↗
3. Adhesion mechanics of graphene membranes10.1016/j.ssc.2012.04.029 ↗
4. Large-area ultrathin films of reduced graphene oxide as a transparent and flexible electronic material10.1038/nnano.2008.83 ↗
5. The rise of graphene10.1038/nmat1849 ↗
6. Half-metallic graphene nanoribbons10.1038/nature05180 ↗
7. Chemically derived, ultrasmooth graphene nanoribbon semiconductors10.1126/science.1150878 ↗
8. Formation of bandgap and subbands in graphene nanomeshes with sub-10 nm ribbon width fabricated via nanoimprint lithography10.1021/nl100750v ↗
9. Atomically precise bottom-up fabrication of graphene nanoribbons10.1038/nature09211 ↗
10. Longitudinal unzipping of carbon nanotubes to form graphene nanoribbons10.1038/nature07872 ↗
11. Recent progress and challenges in graphene nanoribbon synthesis10.1002/cphc.201200253 ↗
12. Preparation of graphitic oxide10.1021/ja01539a017 ↗
13. Graphene nanoribbon devices produced by oxidative unzipping of carbon nanotubes10.1021/nn101019h ↗
14. A method for fabrication of graphene oxide nanoribbons from graphene oxide wrinkles10.1021/jp9079298 ↗
15. Crystallographic etching of few-layer graphene10.1021/nl080583r ↗
16. Anisotropic etching and nanoribbon formation in single-layer graphene10.1021/nl900811r ↗
17. Controlled nanocutting of graphene10.1007/s12274-008-8020-9 ↗
18. Shedding light on the crystallographic etching of multi-layer graphene at the atomic scale10.1007/s12274-009-9073-0 ↗
19. Anisotropic hydrogen etching of chemical vapor deposited graphene10.1021/nn202996r ↗
20. Tip-enhanced Raman spectroscopy of few-layer graphene platelets on ultraflat gold nanoplates10.1039/C4CP05252H ↗
21. Transparent and conducting graphene–RNA-based nanocomposites10.1002/smll.201101537 ↗
22. Doping graphene thin films with metallic nanoparticles: experiment and theory10.1016/j.carbon.2015.08.021 ↗
23. Role of kinetic factors in chemical vapor deposition synthesis of uniform large area graphene using copper catalyst10.1021/nl102355e ↗
24. Facile nucleation of gold nanoparticles on graphene-based thin films from Au144 molecular precursors10.1088/0957-4484/25/13/135601 ↗
25. A combined theoretical-experimental investigation of paramagnetic centres in chemically exfoliated graphene nanoribbons10.1063/1.4813142 ↗
26. Doping graphene with metal contacts10.1103/PhysRevLett.101.026803 ↗
27. Improved conductivity of transparent single-wall carbon nanotube thin films via stable post-deposition functionalization10.1063/1.2715027 ↗
28. Light-directed writing of chemically tunable narrow-band holographic sensors10.1002/adom.201300375 ↗