TEM images
Our product is currently being tested using TEM, and the initial results are very encouraging. The sample has been turned into powder, resulting in stacks of single-layer graphene of such high purity that experts find it challenging to separate them using standard lab liquids.
Since I do not have direct access to a research laboratory, I am seeking opportunities to deliver single-layer graphene in mass production.
Raman Spectroscopy
Raman Spectroscopy Analysis of Single-Layer Graphene Sample
The Raman spectrum provided exhibits strong evidence for the presence of single-layer graphene:
G peak: A single, sharp G peak is observed around 1600 cm-1, indicating a high-quality graphene sample.
2D peak: A distinct 2D peak is present around 2600 cm-1, a characteristic signature of single-layer graphene.
Based on the analysis of these key Raman spectral features, the sample is confirmed as single-layer graphene.
Observations:
The Raman spectrum displays two main peaks:
A G peak at around 1600 cm-1.
A 2D peak around 2600 cm-1.
The spectrum labels indicate the following:
The Raman microscope used was a Renishaw InviaReflex model.
A 50x objective lens was used.
The laser excitation wavelength was 514 nm.
The laser power was adjusted for each measurement, but other parameters including a 10 second exposure time and one accumulation were used consistently.