Emission Characteristics of Organic Light-Emitting Diodes and Organic Thin-Films with Planar and Corrugated Structures

被引:64
作者
Wei, Mao-Kuo [2 ,3 ]
Lin, Chii-Wann [1 ,4 ]
Yang, Chih-Chung [1 ,5 ]
Kiang, Yean-Woei [1 ,5 ,6 ]
Lee, Jiun-Haw [1 ,5 ]
Lin, Hoang-Yan [1 ,5 ]
机构
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan
[2] Natl Dong Hwa Univ, Dept Mat Sci & Engn, Shoufeng 97401, Hualien, Taiwan
[3] Natl Dong Hwa Univ, Inst Optoelect Engn, Shoufeng 97401, Hualien, Taiwan
[4] Natl Taiwan Univ, Inst Biomed Engn, Taipei 10617, Taiwan
[5] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 10617, Taiwan
[6] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10617, Taiwan
关键词
OLED; extraction efficiency; microstructure; HIGH-EFFICIENCY; PERMEATION-BARRIER; DEVICES; IMPROVEMENT; PERFORMANCE; ENHANCEMENT; DISPLAY; OUTPUT; LAYER; EXTRACTION;
D O I
10.3390/ijms11041527
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In this paper, we review the emission characteristics from organic light-emitting diodes (OLEDs) and organic molecular thin films with planar and corrugated structures. In a planar thin film structure, light emission from OLEDs was strongly influenced by the interference effect. With suitable design of microcavity structure and layer thicknesses adjustment, optical characteristics can be engineered to achieve high optical intensity, suitable emission wavelength, and broad viewing angles. To increase the extraction efficiency from OLEDs and organic thin-films, corrugated structure with micro-and nano-scale were applied. Microstructures can effectively redirects the waveguiding light in the substrate outside the device. For nanostructures, it is also possible to couple out the organic and plasmonic modes, not only the substrate mode.
引用
收藏
页码:1527 / 1545
页数:19
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