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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47399

Title: Optimization of polymer light emitting devices using TiOx electron transport layers and prism sheets
Authors: Pei-Kuen Wei
Yu-Hsuan Ho
Yung-Ting Chang
Shun-Wei Liu
Hsiao-Han Lai
Chih-Wei Chu
Chih-I Wu
Wei-Cheng Tian
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: Light extraction
Polymer light emitting devices
Current efficiency
Date: 2012-11
Issue Date: 2018-07-18T03:06:22Z
Publisher: Organic Electronics
Abstract: Abstract: The internal and external efficiency of polymer light emitting devices were found can be simultaneously improved by insertion a high refractive index material, titanium oxide (TiOx), to the emission layer and a prism sheet attached to the substrate. The TiOx layer increased the internal efficiency due to a better electron injection and hole confinement. However, it led a wider angular emission profile with more photons trapped in the substrate. By using the prism sheet, those trapped light was efficiently coupled to the air. The extraction efficiency enhancement was increased from 33.1% to 54.4% and the overall current efficiency was improved up to 86%.
Relation: 13(11) pp.2667-2670
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47399
Appears in Collections:[光電科學研究所] 期刊論文

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