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DOPANTS FOR ORGANIC LIGHT-EMITTING DEVICES
by
Evgueni Polikarpov
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(CHEMISTRY)
May 2008
Copyright 2008 Evgueni Polikarpov
Object Description
| Title | Dopants for organic light-emitting devices |
| Author | Polikarpov, Evgueni |
| Author email | polikarp@usc.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Chemistry |
| School | College of Letters, Arts and Sciences |
| Date defended/completed | 2008-03-14 |
| Date submitted | 2008 |
| Restricted until | Restricted until 10 Apr. 2010. |
| Date published | 2010-04-10 |
| Advisor (committee chair) | Thompson, Mark |
| Advisor (committee member) |
Goo, Edward Bradforth, Stephen |
| Abstract | Organic light-emitting devices (OLEDs) with two-component layers consisting of a guest material (dopant) dispersed in a matrix (host) are examined in this work. Both emissive organic materials as dopants and non-emissive conductivity dopants are discussed. For the conductivity doping, lithium-coordinating agents including cryptands and crown ether derivatives have been used as dopants for electron-transport layers to improve the device operating voltages and luminance. Devices with oxidatively doped hole-transport layers consisting of novel hole-transporting ferrocene derivatives are also described. For the emissive doping, the spectral line shape dependence on the varied host materials for the emission of phosphorescent iridium complexes is examined. It has been shown that the value of Huang-Rhys parameters for the phosphorescence spectra decreases several times when non-polar ultra-high-band-gap hosts (UGHs) are used, compared to conventional carbazole-based host materials. Finally, a new class of efficient blue fluorescent dopants specifically designed as blue components for the white OLEDs with separate channels of harvesting blue singlet and red and green triplet excitons has been characterized. |
| Keyword | OLED |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Type | texts |
| Legacy record ID | usctheses-m1099 |
| Rights | Polikarpov, Evgueni |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Polikarpov-20080410 |
| Archival file | uscthesesreloadpub_Volume29/etd-Polikarpov-20080410.pdf |
Description
| Title | Page 1 |
| Full text | DOPANTS FOR ORGANIC LIGHT-EMITTING DEVICES by Evgueni Polikarpov A Dissertation Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (CHEMISTRY) May 2008 Copyright 2008 Evgueni Polikarpov |
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