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Probing Electronic Properties of dendritic Ruthenium Complex bound to Single Walled Carbon Nanotubes

Published online by Cambridge University Press:  01 February 2011

Harsh Chaturvedi  and
Jordan Poler
Harsh Chaturvedi
Affiliation:
harsh2312@gmail.com, UNC Charlotte, Physics and Optical Sciences, 9201 University City Blvd., Charlotte, NC, 28223, United States
Jordan Poler
Affiliation:
jcpoler@email.uncc.edu, UNC Charlotte, Chemistry, 9201 University City Blvd., Charlotte, NC, 28223, United States
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Abstract

We have functionalized single walled carbon nanotubes (SWNTs) using ruthenium centered organometallic supramolecular dendritic complexes. These dendrimers have multiple binding sites with chemically specified chirality. Most importantly, they are mechanically rigid. We have fabricated field effect transistors (FET) using these functionalized SWNTs. Devices were processed with standard optical lithography and high resolution e-beam lithography. We are using FET response of these devices to study charge injection into the nanotubes and the resultant effect on the tube's transport properties. Organometallic based molecular adsorbents onto the nanotubes effect the transistor response. These functionalized tubes change their majority carriers from holes to electrons in these FETs. We believe this is due to charge transfer from the metal center through the ligand and finally onto the nanotube. This results in the potential for optically altering the carrier density, and therefore the transport properties of the nanotubes.

Keywords

electrical propertieslithography (deposition)organometallic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 938: Symposium N – Molecular-Scale Electronics , 2006 , 0938-N07-09
Copyright
Copyright © Materials Research Society 2006

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