Title :
Optical design and analysis of high efficiency organic green light emitting devices with light extraction structure
Author :
Mikami, Akiyoshi
Author_Institution :
Dept. of Electr. Eng., Kanazawa Inst. of Technol., Ishikawa, Japan
Abstract :
Light extraction efficiency has been enhanced by using weak micro-cavity structure and high refractive index substrate coupled with micro-lens array. Phosphorescent green light emitting device designed by wave optics showed external quantum efficiencies more than 50% and power efficiencies of 200-lm/W.
Keywords :
integrated optoelectronics; microlenses; optical arrays; optical design techniques; organic light emitting diodes; phosphorescence; physical optics; refractive index; external quantum efficiency; high efficiency organic green light emitting devices; high refractive index substrate; light extraction structure; microlens array; optical design; phosphorescent green light emitting device; power efficiency; wave optics; weak microcavity structure; Arrays; Optical films; Optical refraction; Optical variables control; Optical waveguides; Refractive index; Substrates;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682526
