Output power enhancement of white organic light-emitting diodes via a nanopatterned substrate generated by a monolayer of nanospheres

Chang Rong Lin, Mai Chih Liu, Yu Chun Chiu, Chia Hua Chan

研究成果: 雜誌貢獻期刊論文同行評審

5 引文 斯高帕斯(Scopus)

摘要

In this work, the output power enhancement of the white light organic light emitting diode devices (OLEDs) is demonstrated on a patterned indium tin oxide substrate (PIS) prepared via etching self-assembled monolayer SiO2 spheres as the hard mask. The finite difference method calculation, finite difference time domain calculation, and experimental results were performed and revealed that the smaller period of the PIS OLEDs will have better performance. At a constant current density of 20 mA/cm2, the operating voltage of the PIS-OLEDs with a structural period of 300 nm (PIS-300) is reduced 36% compared with that of the planar OLEDs. In addition, at the luminance of 5000 cd/m2, the luminous efficiency and external quantum efficiency of PIS-300 OLEDs are enhanced 228% and 58%, respectively.

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文章編號093101
期刊Applied Physics Letters
110
發行號9
DOIs
出版狀態已出版 - 27 2月 2017

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