38.1: Efficiency Enhancement of Organic Light‐Emitting Diodes on Flexible Substrate with Patterned Inverted Cone Structure

作者: Yi-Jun Wang , Shi-Hong Ouyang , Jian-Gang Lu , Han-Ping D. Shieh

DOI: 10.1002/SDTP.10474

关键词:

摘要: A patterned inverted cone (PIC) structure on flexible substrate produced by focused femtosecond laser was demonstrated for the out-coupling efficiency enhancement of electroluminescent devices. green Organic Light-Emitting Diode (OLED) with PIC employed to verify effect proposed method, which exhibited a current factor 2.2 at 10 mA/cm2 without any emission spectrum altered, compared conventional OLED. The is compatible device fabrication process and applicable full color OLED display lighting.

参考文章(9)
Yiru Sun, Noel C. Giebink, Hiroshi Kanno, Biwu Ma, Mark E. Thompson, Stephen R. Forrest, Management of singlet and triplet excitons for efficient white organic light-emitting devices Nature. ,vol. 440, pp. 908- 912 ,(2006) , 10.1038/NATURE04645
S. Möller, S. R. Forrest, Improved light out-coupling in organic light emitting diodes employing ordered microlens arrays Journal of Applied Physics. ,vol. 91, pp. 3324- 3327 ,(2002) , 10.1063/1.1435422
G. Gu, D. Z. Garbuzov, P. E. Burrows, S. Venkatesh, S. R. Forrest, M. E. Thompson, High-external-quantum-efficiency organic light-emitting devices Optics Letters. ,vol. 22, pp. 396- 398 ,(1997) , 10.1364/OL.22.000396
Susumu Noda, Masayuki Fujita, Takashi Asano, Spontaneous-emission control by photonic crystals and nanocavities Nature Photonics. ,vol. 1, pp. 449- 458 ,(2007) , 10.1038/NPHOTON.2007.141
Won Hoe Koo, Soon Moon Jeong, Fumito Araoka, Ken Ishikawa, Suzushi Nishimura, Takehiro Toyooka, Hideo Takezoe, Light extraction from organic light-emitting diodes enhanced by spontaneously formed buckles Nature Photonics. ,vol. 4, pp. 222- 226 ,(2010) , 10.1038/NPHOTON.2010.7
Ji-Hyang Jang, Min-Cheol Oh, Outcoupling Enhancement of OLEDs With a Randomly Distributed ITO Pattern Fabricated by Maskless Wet Etching Method IEEE\/OSA Journal of Display Technology. ,vol. 9, pp. 900- 903 ,(2013) , 10.1109/JDT.2013.2265696
J. J. Shiang, T. J. Faircloth, Anil R. Duggal, Experimental demonstration of increased organic light emitting device output via volumetric light scattering Journal of Applied Physics. ,vol. 95, pp. 2889- 2895 ,(2004) , 10.1063/1.1644038
Masayuki Fujita, Shigeki Takahashi, Yoshinori Tanaka, Takashi Asano, Susumu Noda, Simultaneous Inhibition and Redistribution of Spontaneous Light Emission in Photonic Crystals Science. ,vol. 308, pp. 1296- 1298 ,(2005) , 10.1126/SCIENCE.1110417
Kristiaan A. Neyts, Simulation of light emission from thin-film microcavities Journal of The Optical Society of America A-optics Image Science and Vision. ,vol. 15, pp. 962- 971 ,(1998) , 10.1364/JOSAA.15.000962