Electrochemical Evaluation of TCO Modifications Using Substituted Ferrocenes

Persistent Link:
http://hdl.handle.net/10150/242380
Title:
Electrochemical Evaluation of TCO Modifications Using Substituted Ferrocenes
Author:
Park, Saehan
Issue Date:
2012
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The modifications of transparent conductive oxides (TCOs) have been studied using an electrochemical evaluation technique (cyclic voltammetry (CV)). Substituted ferrocenes were chemically adsorbed onto the surface of indium tin oxide (ITO) and indium zinc oxide (IZO). The electroactive surface coverage, the redox potential, and the charge transfer rate of the adsorbed modifiers were evaluated using CV. The highest electroactive surface coverage was produced by ferrocene phosphonic acid while ferrocene acetic acid showed the fastest charge transfer rate. The charge transfers with the modified electrodes were evaluated in the presence of a solution electroactive probe. The charge transfer rate of the solution probe was enhanced with the modified electrodes compared to the charge transfer rate measured with unmodified electrodes. Even though the cause of the enhancement in the charge transfer rate is not clear, the results suggest that the modification of TCO may improve the charge collection efficiency of TCO, which is desirable for the application of TCO in devices such as organic photovoltaic cells.
Type:
text; Electronic Thesis
Keywords:
Chemistry
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Chemistry
Degree Grantor:
University of Arizona
Advisor:
Saavedra, S. Scott

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleElectrochemical Evaluation of TCO Modifications Using Substituted Ferrocenesen_US
dc.creatorPark, Saehanen_US
dc.contributor.authorPark, Saehanen_US
dc.date.issued2012-
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe modifications of transparent conductive oxides (TCOs) have been studied using an electrochemical evaluation technique (cyclic voltammetry (CV)). Substituted ferrocenes were chemically adsorbed onto the surface of indium tin oxide (ITO) and indium zinc oxide (IZO). The electroactive surface coverage, the redox potential, and the charge transfer rate of the adsorbed modifiers were evaluated using CV. The highest electroactive surface coverage was produced by ferrocene phosphonic acid while ferrocene acetic acid showed the fastest charge transfer rate. The charge transfers with the modified electrodes were evaluated in the presence of a solution electroactive probe. The charge transfer rate of the solution probe was enhanced with the modified electrodes compared to the charge transfer rate measured with unmodified electrodes. Even though the cause of the enhancement in the charge transfer rate is not clear, the results suggest that the modification of TCO may improve the charge collection efficiency of TCO, which is desirable for the application of TCO in devices such as organic photovoltaic cells.en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
dc.subjectChemistryen_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineChemistryen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorSaavedra, S. Scotten_US
dc.contributor.committeememberArmstrong, Neal R.en_US
dc.contributor.committeememberMcGrath, Dominic V.en_US
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