Paper Title:
A Strategy to Produce Single and Double Layer Graphene Sheets
  Abstract

We report an easy and scaleable approach to produce single and double layer graphene (Gr)-sheet from re-exfoliation of expanded graphite (EG) with large area. Transmission and scanning electron microscopic observations show that the Gr-sheets have an area of ~ (12 x 10) μm2. Raman spectroscopy has confirmed the presence of single and double layer Gr-sheet with I2D/IG ratio as ~ 1.7. Scanning probe microscopy studies reveals that on re-exfoliation of EG, thickness of Gr-layer decreases from 6-7 nm to 0.8-1.1 nm. This infers that re-exfoliation overcomes the problem of insufficient oxidation or inadequate pressure buildup during heat treatment.

  Info
Periodical
Advanced Materials Research (Volumes 306-307)
Chapter
Chapter 9: Nano Materials
Edited by
Shiquan Liu and Min Zuo
Pages
1435-1439
DOI
10.4028/www.scientific.net/AMR.306-307.1435
Citation
S.R. Dhakate, N. Chauhan, S. Sharma, R.B. Mathur, "A Strategy to Produce Single and Double Layer Graphene Sheets", Advanced Materials Research, Vols. 306-307, pp. 1435-1439, 2011
Online since
August 2011
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Price
$32.00
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