In this study, we have fabricated the red OLED (organic light emitting diode). The basic device structure is ITO/hole transporting layer, TPD(500 Å)/red emitting layer, Alq3 doped with DCM2:rubrene(20 Å)/electron transporting layer, Alq3(M) (500 Å-M Å)/LiF(15 Å)/Al(1,000 Å). The thickness of electron transporting layer(500 Å-M Å) changed 0, 20, 40, 60 Å. Turn on voltage of the red OLED was 5 V, 6 V, 6.5 V and 7.5 V , respectively with electron transfer layer changed ratio. Luminance of red OLED was 4,504, 1,840, 1,490 and 1,130 cd/m2, respectively. Optimized electron transfer layer position changed ratio of the red OLED was 0 Å.
Quantitative Analysis of Charge Distribution in Bi-Emissive layer White Organic Light-Emitting Diodes with Two Fluorescent Dopants Ji Young Kim, Woo Young Kim, Kok Wai Cheah Scientific Reports.2018;[Epub] CrossRef
Electrical and Optical Properties of Organic Light Emission Devices using Selective Doping in a Single Host Yu Seok Seo, Dae Gyu Moon Journal of Korean Institute of Electrical and Electronic Materials Engineers.2010; 23(2): 124. CrossRef
Anisotropic Diffusion based on Directions of Gradient Hye-Suk Kim, Gi-Hong Kim, Hyo-Sun Yoon, Guee-Sang Lee The Journal of the Korea Contents Association.2008; 8(11): 1. CrossRef
Influence of Fluorescent Dye Doping on Efficiency of Red Organic Light-emitting Diodes Jeong-Gu Lee, Kee-Joe Lim The Journal of the Korea Contents Association.2008; 8(11): 18. CrossRef
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