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Title: Optically Detected Magnetic Resonance and Thermal Activation Spectroscopy Study of Organic Semiconductors

Abstract

Organic electronic materials are a new class of emerging materials. Organic light emitting devices (OLEDs) are the most promising candidates for future flat panel display technologies. The photophysical characterization is the basic research step one must follow to understand this new class of materials and devices. The light emission properties are closely related to the transport properties of these materials. The objective of this dissertation is to probe the relation between transport and photophysical properties of organic semiconductors. The transport characteristics were evaluated by using thermally stimulated current and thermally stimulated luminescence techniques. The photoluminescence detected magnetic resonance and photoluminescence quantum yield studies provide valuable photophysical information on this class of materials. OLEDs are already in the market. However, detailed studies on the degradation mechanisms are still lacking. Since both optically detected magnetic resonance and thermal activation spectroscopy probe long-lived defect-related states in organic semiconductors, the combined study generates new insight on the OLED operation and degradation mechanisms.

Authors:
 [1]
  1. Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Lab., Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
822055
Report Number(s):
IS-T 2605
TRN: US0401160
DOE Contract Number:  
W-7405-Eng-82
Resource Type:
Thesis/Dissertation
Resource Relation:
Other Information: TH: Thesis (Ph.D.); Submitted to Iowa State Univ., Ames, IA (US); PBD: 12 Dec 2003
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; LUMINESCENCE; MAGNETIC RESONANCE; MARKET; ORGANIC SEMICONDUCTORS; PHOTOLUMINESCENCE; PROBES; SPECTROSCOPY; TRANSPORT

Citation Formats

Kim, Chang-Hwan. Optically Detected Magnetic Resonance and Thermal Activation Spectroscopy Study of Organic Semiconductors. United States: N. p., 2003. Web. doi:10.2172/822055.
Kim, Chang-Hwan. Optically Detected Magnetic Resonance and Thermal Activation Spectroscopy Study of Organic Semiconductors. United States. doi:10.2172/822055.
Kim, Chang-Hwan. Wed . "Optically Detected Magnetic Resonance and Thermal Activation Spectroscopy Study of Organic Semiconductors". United States. doi:10.2172/822055. https://www.osti.gov/servlets/purl/822055.
@article{osti_822055,
title = {Optically Detected Magnetic Resonance and Thermal Activation Spectroscopy Study of Organic Semiconductors},
author = {Kim, Chang-Hwan},
abstractNote = {Organic electronic materials are a new class of emerging materials. Organic light emitting devices (OLEDs) are the most promising candidates for future flat panel display technologies. The photophysical characterization is the basic research step one must follow to understand this new class of materials and devices. The light emission properties are closely related to the transport properties of these materials. The objective of this dissertation is to probe the relation between transport and photophysical properties of organic semiconductors. The transport characteristics were evaluated by using thermally stimulated current and thermally stimulated luminescence techniques. The photoluminescence detected magnetic resonance and photoluminescence quantum yield studies provide valuable photophysical information on this class of materials. OLEDs are already in the market. However, detailed studies on the degradation mechanisms are still lacking. Since both optically detected magnetic resonance and thermal activation spectroscopy probe long-lived defect-related states in organic semiconductors, the combined study generates new insight on the OLED operation and degradation mechanisms.},
doi = {10.2172/822055},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2003},
month = {Wed Jan 01 00:00:00 EST 2003}
}

Thesis/Dissertation:
Other availability
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