Ionic Transition Metal Complex Polymers as Photonic and Redox Active Materials

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Material Information

Title:
Ionic Transition Metal Complex Polymers as Photonic and Redox Active Materials
Physical Description:
1 online resource (216 p.)
Language:
english
Creator:
Puodziukynaite, Egle
Publisher:
University of Florida
Place of Publication:
Gainesville, Fla.
Publication Date:

Thesis/Dissertation Information

Degree:
Doctorate ( Ph.D.)
Degree Grantor:
University of Florida
Degree Disciplines:
Chemistry
Committee Chair:
Reynolds, John R
Committee Members:
Mcelwee-White, Lisa A
Castellano, Ronald K
Schanze, Kirk S
So, Franky

Subjects

Subjects / Keywords:
cell -- chemiluminescence -- complex -- conjugated -- dual -- electrochromic -- electrogenerated -- electroluminescence -- electroluminescent -- emission -- fuel -- ionic -- light -- light-harvesting -- metal -- polymer -- solar -- transition
Chemistry -- Dissertations, Academic -- UF
Genre:
Chemistry thesis, Ph.D.
bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract:
An emerging field of organic electronics has led to various lightweight, flexible, and easily processable devices, including organic light-emitting displays, electrochromic display and window-type devices, photovoltaic cells, and field effect transistors. In these architectures, ionic transition metal complexes (iTMCs) represent an important class of active layer materials, as they posses intrinsic multifunctionality. Via structural modifications, a combination of redox activity, electrochromism, light emission, and ionic conductivity can be fine-tuned in these materials. Additionally, unique properties arise as iTMCs are combined with organic electroactive polymers, leading to controlled energy and charge transport mechanisms. This dissertation describes the design, synthesis, characterization, and structure property-relationships of iTMC polymers with the multifunctionality required to develop new architectures of optoelectronic devices. A first part of this dissertation focuses on cross-linkable Ru(II) tris(bipyridine) complexes with dual electrochromic (EC) and electrochemiluminescent (EL) characteristics. For these complexes, the structure property relationships are established between the detailed ligand design and the combination of the required properties for simultaneous emissive and reflective mode applications. Additionally, for the first time, a dual EC/EL device prototype is presented where light-emission and multi-color electrochromism occur from the same pixel comprised of a single active layer, allowing for optimal visibility in all ambient lighting situations. A second portion of this dissertation focuses on iTMC-organic conjugated polymer assemblies as light-harvesting arrays and charge transport materials for ultimate use in solar photovoltaic and fuel devices. With controlled charge and exciton transport being the key requirement in such systems, polymer building blocks having variable HOMO/LUMO levels (i.e. polyfluorene, poly(3-hexylthiophene), poly(fluorene-co-thiophene), etc.) are explored as the backbones of the macromolecular antennae. Facile energy transfer and charge separation processes between the polymer backbones and pendant iTMC units are found to occur in such systems by employing ultrafast spectroscopic techniques. Additionally, these hybrid arrays are demonstrated to exhibit fast exciton transport along the pendant Ru(II) units resulting in an antenna effect. Finally, interactions between these macromolecular assemblies and semiconductor interfaces are studied as the iTMC hybrids are utilized in solar photoelectrochemical cells.
General Note:
In the series University of Florida Digital Collections.
General Note:
Includes vita.
Bibliography:
Includes bibliographical references.
Source of Description:
Description based on online resource; title from PDF title page.
Source of Description:
This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Statement of Responsibility:
by Egle Puodziukynaite.
Thesis:
Thesis (Ph.D.)--University of Florida, 2012.
Local:
Adviser: Reynolds, John R.
Electronic Access:
RESTRICTED TO UF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE UNTIL 2014-12-31

Record Information

Source Institution:
UFRGP
Rights Management:
Applicable rights reserved.
Classification:
lcc - LD1780 2012
System ID:
UFE0045007:00001