Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 550, Issue -, Pages 353-357Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2012.10.169
Keywords
Graphene; Tin; Field-emission
Categories
Funding
- National Natural Science Foundation of China [U1204601, 51072063]
- Natural Science Foundation of Henan Province [112300410012, 122300410298]
- Natural Science Foundation of Education Department of Henan Province [2011C430003]
- Zhengzhou Natural Science Foundation [20110342]
- Huanghe SAMP
- T College Foundation [2012XSCX010]
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The field emission properties of graphene nanosheets were remarkably improved by decorating their surface with tin (Sn) nanoparticles. The Sn nanoparticles were attached effectively on the surface of graphene via a chemical vapor deposition during graphene oxide reduction procedure. The Sn-decorated graphene (Sn-Gr) sheets showed lower turn-on voltage and higher emission stability compared with pristine graphene. The improved field emission properties of Sn-Gr sheets were mainly attributed to the Sn nanoparticles which increased the field enhancement factor and the density of emission sites. (C) 2012 Elsevier B.V. All rights reserved.
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