期刊
NANO LETTERS
卷 11, 期 2, 页码 589-593出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl103590J
关键词
Graphene; scanning tunneling microscopy; nanolithography; self-assembled monolayer; organic functionalization
类别
资金
- National Science Foundation [EEC-0647560, DMR-0520513]
- Office of Naval Research [N00014-09-1-0180]
- Department of Energy [DE-SC0001785]
- U.S. Department of Energy (DOE) [DE-SC0001785] Funding Source: U.S. Department of Energy (DOE)
Nanoscale control of surface chemistry holds promise for tailoring the electronic, optical, and chemical properties of graphene. Toward this end, the nanofabrication of sub-5-nm heteromolecular organic nanostructures is demonstrated on epitaxial graphene using room temperature ultrahigh, vacuum scanning tunneling microscopy, In particular,monolayers of the organic semiconductor 3,4,9,10-perylene-tetracarboxylic dianhydride (PTCDA) are nanopattemed on.epitardal graphene:using feedback-controlled lithography (FCL) and then used as chemical resists to template the deposition of N,N'-diocty1-3,4,9,10-perylene-tetracarboxylic diimide (PTCDI-C8). The generality of this FCL-based nanofabrication procedure suggests its applicability to a wide range of fundamental studies and prototype device fabrication on chemically functionalized graphene.
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