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技術應用_苹果版葡京娱乐_

澳门葡京国际

2D Material--Graphene mapping


Graphene Mapping_91483.com_澳门葡京国际


Model: MRI 532
Laser wavelength: 532 nm
Laser power: 50 mW
Integration time: 1 second
Average: 2 times
Objective lens: 50X
Mapping area: 40x40 um2
Resolution: 2 um

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Analysis:

  1. Mapping: The sample does not correspond to mono-layer Graphene, as the changes of signal on the image show the distribution of the different layers.
  2. Single-point spectrum: MRI 532 mapping system can clearly measure Graphene peaks as D-band ≈ 1350 cm-1, G-band ≈ 1580 cm-1, 2D-band ≈ 2700 cm-1.
  3. Sample structure: The present of D-band indicated that there are defects on Graphene structure.

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