INSIGHT INTO THE ELECTRONIC PROPERTIES OF ORGANIC SEMICONDUCTORS: EXPERIMENTAL MEASURES FROM THE ISOLATED-MOLECULE LEVEL TO THE SOLID-STATE DEVICE LIMIT

Persistent Link:
http://hdl.handle.net/10150/195928
Title:
INSIGHT INTO THE ELECTRONIC PROPERTIES OF ORGANIC SEMICONDUCTORS: EXPERIMENTAL MEASURES FROM THE ISOLATED-MOLECULE LEVEL TO THE SOLID-STATE DEVICE LIMIT
Author:
Griffith, Olga
Issue Date:
2010
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:
Fundamental understanding of the electronic properties, and charge transfer mechanism of organic semiconductors and functionalized oligoacenes in particular, is of great importance for the design and fabrication of organic electronic devices. This work is devoted to the study of the electronic properties of organic semiconductors in the gas, solution, and solid phases, thus providing insights into the intra- and intermolecular electronic interactions of these materials from the isolated-molecule level to the solid-state device limit. The organic semiconductors investigated in this work are bis-triisopropylsilylethynyl-substituted (TIPS) anthracene, TIPS tetracene, TIPS pentacene, bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa-dicyclopenta[b,m]-pentacene (TP-5), and 2,2,10,10-tetraethyl-6,14-bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa-dicyclopenta[b,m]pentacene (EtTP-5). This research is conducted on the basis of experimental and computational studies. The experimental analysis is based on the combination of closely-related gas-phase and solid-phase photoelectron spectroscopy measurements, along with electrochemical measurements in solution. The electronic structure quantum-mechanical computations are performed at the density functional theory level, and are in good agreement with experimental results.This dissertation reports important findings on the electronic properties of organic semiconductors and how these properties change between phases. The role of polarization effects on the electronic properties of these materials was demonstrated to be significant and strongly dependant on the molecular structure and electronic interactions at the isolated- (or single-) molecule level as well as on the molecular packing and electronic interactions in the solid state at the device limit.
Type:
text; Electronic Dissertation
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Chemistry; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Lichtenberger, Dennis L.
Committee Chair:
Lichtenberger, Dennis L.

Full metadata record

DC FieldValue Language
dc.language.isoENen_US
dc.titleINSIGHT INTO THE ELECTRONIC PROPERTIES OF ORGANIC SEMICONDUCTORS: EXPERIMENTAL MEASURES FROM THE ISOLATED-MOLECULE LEVEL TO THE SOLID-STATE DEVICE LIMITen_US
dc.creatorGriffith, Olgaen_US
dc.contributor.authorGriffith, Olgaen_US
dc.date.issued2010en_US
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.abstractFundamental understanding of the electronic properties, and charge transfer mechanism of organic semiconductors and functionalized oligoacenes in particular, is of great importance for the design and fabrication of organic electronic devices. This work is devoted to the study of the electronic properties of organic semiconductors in the gas, solution, and solid phases, thus providing insights into the intra- and intermolecular electronic interactions of these materials from the isolated-molecule level to the solid-state device limit. The organic semiconductors investigated in this work are bis-triisopropylsilylethynyl-substituted (TIPS) anthracene, TIPS tetracene, TIPS pentacene, bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa-dicyclopenta[b,m]-pentacene (TP-5), and 2,2,10,10-tetraethyl-6,14-bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa-dicyclopenta[b,m]pentacene (EtTP-5). This research is conducted on the basis of experimental and computational studies. The experimental analysis is based on the combination of closely-related gas-phase and solid-phase photoelectron spectroscopy measurements, along with electrochemical measurements in solution. The electronic structure quantum-mechanical computations are performed at the density functional theory level, and are in good agreement with experimental results.This dissertation reports important findings on the electronic properties of organic semiconductors and how these properties change between phases. The role of polarization effects on the electronic properties of these materials was demonstrated to be significant and strongly dependant on the molecular structure and electronic interactions at the isolated- (or single-) molecule level as well as on the molecular packing and electronic interactions in the solid state at the device limit.en_US
dc.typetexten_US
dc.typeElectronic Dissertationen_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineChemistryen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorLichtenberger, Dennis L.en_US
dc.contributor.chairLichtenberger, Dennis L.en_US
dc.contributor.committeememberMonti, Oliver L. A.en_US
dc.contributor.committeememberSanov, Andreien_US
dc.contributor.committeememberWalker, F. Annen_US
dc.contributor.committeememberZiurys, Lucy M.en_US
dc.identifier.proquest10840en_US
dc.identifier.oclc659753726en_US
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