Journal
JOURNAL OF CHEMICAL EDUCATION
Volume 93, Issue 10, Pages 1798-1803Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jchemed.6b00198
Keywords
Upper-Division Undergraduate; Analytical Chemistry; Physical Chemistry; Materials Science; Laboratory Instruction; Hands-on Learning/Manipulatives; Nanotechnology; Raman Spectroscopy
Funding
- NSF [CHE-1507629]
- NSF GRFP [DGE-1252521]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1507629] Funding Source: National Science Foundation
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In this upper-level undergraduate experiment, students utilize micro-Raman spectroscopy to characterize graphene prepared by mechanical exfoliation and chemical vapor deposition (CVD). The mechanically exfoliated samples are prepared by the students while CVD graphene can be purchased or obtained through outside sources. Owing to the intense Raman signal of a few-layer graphene on a 300 nm thermal oxide silicon wafer, students can learn how different instrumental parameters used in Raman microscopy affect the quality of the measurement. This experiment gives students a first-hand experience in the production of a two-dimensional nanomaterial and exposes them to the utility of micro-Raman spectroscopy as a characterization technique.
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