2011APS March Meeting AbstractsConference publication

Microstructure and Transport Studies of Functionalized Graphene

Ron Gamble, Darryl Lewis, Dereje Seifu, Jorge Camacho, Myron Strongin, Liyuan Zhang

APS March Meeting Abstracts · K1.00030, Dallas, 2011 (2011)

**AI thematic illustration**Concept artwork created for this paper.

Introduction

The researchers combined transport measurements, atomic force microscopy and Raman spectroscopy. Minimum conductivity varied from 2 to 12 e²/h across the graphene samples, and shifts of the G and 2D peaks were associated with strain and doping. After iron deposition, transport changed and microscopy showed clusters on the surface.

A closer reading

Reading the images, spectra and electrical measurements together helps separate an observation from its proposed cause. The microscopy revealed clusters. The attribution of the transport change mainly to iron oxide is the authors’ interpretation of those observations.