NDLI: Photochemical generation of bis-hexahapto chromium interconnects between the graphene surfaces of single-walled carbon nanotubes

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Materials Horizons Vol -1

Photochemical generation of bis-hexahapto chromium interconnects between the graphene surfaces of single-walled carbon nanotubes

Content Provider	Royal Society of Chemistry (RSC)
Author	Bekyarova, Elena Haddon, Robert C. Chen, Mingguang Pekker, Aron
Copyright Year	2015
Abstract	The electrical conductivity of single-walled carbon nanotube (SWNT) networks is strongly enhanced by the high vacuum e-beam deposition of transition metals. In the present communication we demonstrate that it is possible to accomplish the same chemical functionalization reactions at room temperature beginning with simple organometallic precursors. We show that the photochemically induced reactions of solutions of Cr(CO)6, Cr(η6-benzene)(CO)3, and Cr(η6-benzene)2 with thin films of semiconducting, metallic and non-separated SWNT films all lead to strongly enhanced conductivities which produce consistent results for each SWNT type among the three organometallic reagents. We conclude that all three of these reactions lead to the generation of covalent (η6-SWNT)Cr(η6-SWNT) interconnects which provide conducting pathways in the SWNT films and our results broaden the applicability of the transition metal bis-hexahapto-bond as an electronically conjugating linkage between graphene surfaces.
Starting Page	81
Ending Page	85
Page Count	5
File Format	HTM / HTML PDF
ISSN	20516347
Volume Number	2
Issue Number	1
Journal	Materials Horizons
DOI	10.1039/c4mh00192c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Electrical resistivity and conductivity Carbon nanotube Organometallic chemistry Graphene Benzene Covalent bond Chromium hexacarbonyl Transition metal
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Electrical and Electronic Engineering Process Chemistry and Technology

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