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Proceedings Paper

Highly efficient blue organic light-emitting diodes using dual emissive layers with host-dopant system
Author(s): Bo Mi Lee; Hyeong Hwa Yu; You Hyun Kim; Nam Ho Kim; Ju An Yoon; Peter Mascher; Woo Young Kim
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Paper 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.

Paper Details

Date Published: 24 October 2012
PDF: 8 pages
Proc. SPIE 8412, Photonics North 2012, 841221 (24 October 2012); doi: 10.1117/12.2001394
Show Author Affiliations
Bo Mi Lee, McMaster Univ. (Canada)
Hyeong Hwa Yu, Hoseo Univ. (Korea, Republic of)
You Hyun Kim, Hoseo Univ. (Korea, Republic of)
Nam Ho Kim, Hoseo Univ. (Korea, Republic of)
Ju An Yoon, Hoseo Univ. (Korea, Republic of)
Peter Mascher, McMaster Univ. (Canada)
Woo Young Kim, Hoseo Univ. (Korea, Republic of)
McMaster Univ. (Canada)

Published in SPIE Proceedings Vol. 8412:
Photonics North 2012
Jean-Claude Kieffer, Editor(s)

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