24 October 2012 Highly efficient blue organic light-emitting diodes using dual emissive layers with host-dopant system
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Proceedings Volume 8412, Photonics North 2012; 841221 (2012) https://doi.org/10.1117/12.2001394
Event: Photonics North 2012, 2012, Montréal, Canada
Abstract
In this study, we fabricated highly efficient blue organic light-emitting diodes by designing different emitting layer structures with fluorescent host and dopant materials of 4,4-bis(2,2-diphenylyinyl)-1,10-biphenyl (DPVBi) and 9,10- bis(2-naphthyl) anthracene (ADN) as host materials and 4,4’-bis(9-ethyl-3-carbazovinylene)-1,1’biphenyl (BCzVBi) as a dopant material to demonstrate electrical and optical improvements. Best enhancement in luminance and luminous efficiency were achieved by a quantum well structure and energy transfer between host and dopant materials in device F as of 8668cd/m2 at 8V and 5.16 Cd/A at 103.20 mA/cm2 respectively. Among the blue OLED devices doped by BCzVBi, device B emits the deepest blue emission with Commission Internationale de l’E´ clairage (CIExy) coordinates of (0.157, 0.117) at 8V.
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Bo Mi Lee, Bo Mi Lee, Hyeong Hwa Yu, Hyeong Hwa Yu, You Hyun Kim, You Hyun Kim, Nam Ho Kim, Nam Ho Kim, Ju An Yoon, Ju An Yoon, Peter Mascher, Peter Mascher, Woo Young Kim, Woo Young Kim, } "Highly efficient blue organic light-emitting diodes using dual emissive layers with host-dopant system", Proc. SPIE 8412, Photonics North 2012, 841221 (24 October 2012); doi: 10.1117/12.2001394; https://doi.org/10.1117/12.2001394
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