期刊
APPLIED PHYSICS LETTERS
卷 96, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3337091
关键词
copper; graphene; substrates; transmission electron microscopy
资金
- Office of Naval Research MURI program [N00014-09-1-1066]
- U. S. Department of Energy [DE-AC02-05CH11231]
- National Science Foundation [EEC-0832819, DMR 0906539]
- UC Berkeley A. J. Macchi Fellowship
- China Scholarship Council
- Direct For Mathematical & Physical Scien [0906539] Funding Source: National Science Foundation
- Division Of Materials Research [0906539] Funding Source: National Science Foundation
A facile method is reported for the direct (polymer-free) transfer of layer-area graphene from metal growth substrates to selected target substrates. The direct route, by avoiding several wet chemical steps and accompanying mechanical stresses and contamination common to all presently reported layer-area graphene transfer methods, enables fabrication of layer-area graphene devices with unprecedented quality. To demonstrate, we directly transfer layer-area graphene from Cu growth substrates to holey amorphous carbon transmission electron microscopy (TEM) grids, resulting in robust, clean, full-coverage graphene grids ideal for high resolution TEM.
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