Hamid Reza Lashgari

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Questions related from Hamid Reza Lashgari

In Raman spectroscopy of graphene, I have a peak that appeared at 2329.26 cm-1. Wondering what this peak can be attributed to?

In my work, there are three peaks corresponding to the so-called D-band, G-band, and 2D-band. However, there is another peak at 2329.26 cm-1 and I am wondering what reason could cause this peak?...

10 October 2016 7,387 7 View

Why thermal annealing change the shape of 2D peak in graphene? What is the mechanism for self-healing of graphene during annealing?

I am sonicating graphene (725W, 20KHz) in ethanol to re-exfoliate. After sonication, Raman spectroscopy showed a symmetric 2D band but when thermal annealing was performed, the shape of peak...

10 October 2016 5,172 2 View