Title page for etd-0622116-002247


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URN etd-0622116-002247
Author Pei-Yuan Hong
Author's Email Address No Public.
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Department Electro-Optical Engineering
Year 2015
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Study of organic light-emitting diodes with internal light
extraction structure
Date of Defense 2016-07-11
Page Count 98
Keyword
  • OLED
  • EQE
  • internal light extraction
  • Abstract In this study, we fabricated organic light-emitting diodes (OLEDs) with internal light extraction structure to reduce the Waveguide mode loss and increase the EQE by using the Anti-Reflection (AR) and Photonic Quasi Crystals (PQC) micro-structure substrate provided by ITRI.
    The study was divided into three stages:
    1. The transmittance and morphology of AR and PQC were measured and studied.
    2. Light-curable polymer spin coated onto AR and PQC substrates respectively to filled the structure, and then Indium Tin Oxide (ITO) were sputter-deposited. The transmittance, morphology and sheet resistance of the AR and PQC substrates covered by Light-curable polymer and ITO were measured and studied. And then, design and fabrication of ITO anodes were performed. 
    3. The optimized standard green and blue OLED device structures were chosen to fabricate green and blue OLEDs with internal light extraction structure. The opto-electrical properties of the devices were measured and studied.
    Finally, we successfully fabricated green OLEDs with AR structure and blue OLEDs with PQC structure respectively. Significantly, the green and blue OLEDs with internal light extraction structure have outstanding light extraction efficiency, which increase the external quantum efficiency (EQE) by 18.9% and 30.6% compared to standard OLEDs at 1000cd/m2 respectively.
    Key words´╝Ü internal light extraction, EQE,OLED
    Advisory Committee
  • Wen-yao Huang - chair
  • Shun-Wei Liu - co-chair
  • Chih-Chien Lee - co-chair
  • Mei-Ying Chang - advisor
  • Files
  • etd-0622116-002247.pdf
  • Indicate in-campus at 99 year and off-campus access at 99 year.
    Date of Submission 2016-07-22

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