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Charge transport in conjugated organ...

Doescher, Michael Scott.

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Charge transport in conjugated organic oligomers: Anodic stripping voltammetry and nanostructured array electrodes.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Charge transport in conjugated organic oligomers: Anodic stripping voltammetry and nanostructured array electrodes./
Author:	Doescher, Michael Scott.
Description:	177 p.
Notes:	Major Professor: Michael L. Myrick.
Contained By:	Dissertation Abstracts International63-07B.
Subject:	Chemistry, Analytical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3059431
ISBN:	0493750762

Charge transport in conjugated organic oligomers: Anodic stripping voltammetry and nanostructured array electrodes.
Doescher, Michael Scott.

Charge transport in conjugated organic oligomers: Anodic stripping voltammetry and nanostructured array electrodes. - 177 p.

Major Professor: Michael L. Myrick.

Thesis (Ph.D.)--University of South Carolina, 2002.

One of the goals of nanotechnology is the fabrication of nanometer-sized components for molecular electronics. Conjugated organic oligomers have been proposed as molecular wires which will serve to interconnect hypothetical nanoscale electronics devices. However, very little is known about the electronic characteristics of these oligomers with respect to connections made to real materials.

ISBN: 0493750762Subjects--Topical Terms:

586156
Chemistry, Analytical.

Charge transport in conjugated organic oligomers: Anodic stripping voltammetry and nanostructured array electrodes.
LDR:03149nam 2200313 a 45 001 926896
005 20110422
008 110422s2002 eng d
020 $a 0493750762
035 $a (UnM)AAI3059431
035 $a AAI3059431
040 $a UnM $c UnM
100 1 $a Doescher, Michael Scott. $3 1250479
245 1 0 $a Charge transport in conjugated organic oligomers: Anodic stripping voltammetry and nanostructured array electrodes.
300 $a 177 p.
500 $a Major Professor: Michael L. Myrick.
500 $a Source: Dissertation Abstracts International, Volume: 63-07, Section: B, page: 3308.
502 $a Thesis (Ph.D.)--University of South Carolina, 2002.
520 $a One of the goals of nanotechnology is the fabrication of nanometer-sized components for molecular electronics. Conjugated organic oligomers have been proposed as molecular wires which will serve to interconnect hypothetical nanoscale electronics devices. However, very little is known about the electronic characteristics of these oligomers with respect to connections made to real materials.
520 $a We have developed a technique for measuring charge transport through self-assembled monolayers (SAMs) of conjugated oligomers. Electrodes were prepared with SAMs of the conjugated oligomers on gold electrodes and overcoated with copper metal to create metal—organic—metal junctions. Both electrochemical deposition and physical vapor deposition were explored for the metal coating. Anodic stripping voltammetry was then used to remove defects where the copper was shorted to the gold and to oxidize the copper with electron transport through the conjugated oligomers. From this data, the barrier to charge injection from the metal contacts was calculated.
520 $a These experiments depended on the integrity of the monolayer following metal coating. In order to characterize the structure of the monolayer following metal coating, electrochemical passivation, x-ray photoelectron spectroscopy, and grazing—angle infrared spectroscopy experiments were performed on alkanethiol self-assembled monolayers on gold electrodes.
520 $a This technique only provides data at limited potentials since it relies on the oxidation of a metal for the collection of data. The remaining copper particles after defect removal were too small to make electrical contact with. In order to collect the full current—voltage data, nanowell array electrodes have been fabricated which may permit macroscopic connections to both metal layers in the metal—organic—metal junction. Electroplating of gold to fill the pores of an Anodisc filtration membrane, which was used as a template, followed by polishing was performed prior to generation of wells by electrochemical gold stripping, ion bombardment, or a combination of both ion bombardment and electrochemical gold stripping.
590 $a School code: 0202.
650 4 $a Chemistry, Analytical. $3 586156
650 4 $a Chemistry, Physical. $3 560527
690 $a 0486
690 $a 0494
710 2 0 $a University of South Carolina. $3 1017477
773 0 $t Dissertation Abstracts International $g 63-07B.
790 $a 0202
790 1 0 $a Myrick, Michael L., $e advisor
791 $a Ph.D.
792 $a 2002
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3059431