Journal
NANO LETTERS
Volume 12, Issue 9, Pages 4635-4641Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl301932v
Keywords
Graphene; layer number; stacking order; TEM
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Funding
- Laboratory for Physical Sciences
- U.S. DOE, Office of Science, Office of Basic Energy Sciences [DESC0001160]
- ONR-MURI program
- NSF [DMR 05-20741]
- 373 Maryland NanoCenter and its NispLab
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A method based on dark field transmission electron microscopy is developed to quantitively investigate the layer number and stacking order of multilayer graphene, demonstrated here on multilayer crystalline graphene synthesized by chemical vapor deposition. Our results show that the relative intensities of first- and second-order diffraction spots and contrast in corresponding dark field images are sufficient to identify the layer number and stacking order of graphene with layer number up to seven (7) or more with few-nanometer spatial resolution.
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