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

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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 ... continued below

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4639 Kilobytes pages

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Kim, Chang-Hwan December 12, 2003.

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Description

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.

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4639 Kilobytes pages

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INIS; OSTI as DE00822055

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  • Other Information: TH: Thesis (Ph.D.); Submitted to Iowa State Univ., Ames, IA (US)

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  • Report No.: IS-T 2605
  • Grant Number: W-7405-Eng-82
  • Office of Scientific & Technical Information Report Number: 822055
  • Archival Resource Key: ark:/67531/metadc786233

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Office of Scientific & Technical Information Technical Reports

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  • December 12, 2003

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  • Dec. 3, 2015, 9:30 a.m.

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  • Jan. 9, 2018, 9:54 a.m.

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Kim, Chang-Hwan. Optically Detected Magnetic Resonance and Thermal Activation Spectroscopy Study of Organic Semiconductors, thesis or dissertation, December 12, 2003; Ames, Iowa. (digital.library.unt.edu/ark:/67531/metadc786233/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.