Study of the Surface Morphology of Thermally Annealed Copper Foils and Various Transfer Methods for Graphene

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Abstract:

The surface morphology of thermally annealed copper foils utilized for graphene growth by chemical vapor deposition CVD has been studied by Optical microscopy, Scanning Electron Microscopy SEM, and Scanning Tunneling Microscopy STM as a function of heat treatment. This study reports on the surface roughness and relative grain size before and after thermal annealing. The main results are that a the graphene covered foil exhibits reduced surface roughness, and b the graphene film preserves an imprint of the Cu grain structure. In the second part of the work, the transfer of CVD graphene is ex-perimentally investigated using Polymethyl methacrylate PMMA, Polycarbonate PC, and Polysty-rene PS. Noticeable improvement to surface cleanness as well as electrical properties of graphene is observed after the ethanol treatment. Finally, Raman characterization showed apparent blue-shifts of the G and 2D bands suggesting that the graphene is heavily doped after the ethanol treatment.

Author(s):
Sarajlic, Olesya
Author Organization(s):
GEORGIA STATE UNIV ATLANTA RESEARCH FOUNDATION INC
Descriptive Note:
Master's thesis
Supplementary Note:
The original document contains color images.
Pagination:
0061

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ARO-58093-EL.25
Contract/Grant Number(s):
W911NF-10-1-0450
Monitor Series:
58093-EL.25, ARO
 Subject Terms
Joint Capability Areas:
JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_5_Command and Control; JCA_1.2.3_Educating; JCA_5.3_Planning
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*GRAPHENE, *THERMAL RADIATION, *VAPORS, ANNEALING, COPPER, ELECTRICAL PROPERTIES, ELECTRON MICROSCOPY, ELECTRONIC SCANNERS, ETHANOLS, FILMS, FOILS(MATERIALS), GRAIN SIZE, GRAIN STRUCTURES(METALLURGY), GROWTH(GENERAL), HEAT TREATMENT, MICROSCOPY, MORPHOLOGY, OPTICAL ANALYSIS, POLYCARBONATES, POLYMETHYL METHACRYLATE, PROTECTIVE TREATMENTS, RAMAN SPECTRA, REDUCTION, REPORTS, SCANNING ELECTRON MICROSCOPES, SURFACE PROPERTIES, SURFACE ROUGHNESS, SURFACES, THESES, TRANSFER, TUNNELING(ELECTRONICS), VAPOR DEPOSITION
Field(s)/Group(s):
Physical Chemistry, Thermodynamics
Keyword(s):
COPPER FOILS, CHEMICAL VAPOR DEPOSITION, AVERAGE ROUGHNESS, SURFACE HEIGHT VARIATIONS, GRAPHENE TRANSFER, THERMOPLASTIC POLYMERS, PE611102A
Report Date:
2013 Jan 01
Creation Date:
2015 Dec 30