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9 April 2013 Highly efficient blue organic light-emitting diodes using dual emissive layers with host-dopant system
Bo Mi Lee, Hyeong Hwa Yu, You Hyun Kim, Nam Ho Kim, Ju An Yoon, Woo Young Kim, Peter Mascher
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Journal of Photonics for Energy, Vol. 3, Issue 1, 033598 (April 2013). https://doi.org/10.1117/1.JPE.3.033598
Abstract
We fabricated highly efficient blue organic light-emitting diodes (OLEDs) by designing differing emitting layer structures with fluorescent host and dopant materials of 4,4-bis (2,2-diphenylyinyl)-1,10-biphenyl and 9,10-bis (2-naphthyl) anthracene 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 in device F with 8668  cd/m 2 at 8 V 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’É clairage coordinates of (0.157, 0.117) at 8 V.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Bo Mi Lee, Hyeong Hwa Yu, You Hyun Kim, Nam Ho Kim, Ju An Yoon, Woo Young Kim, and Peter Mascher "Highly efficient blue organic light-emitting diodes using dual emissive layers with host-dopant system," Journal of Photonics for Energy 3(1), 033598 (9 April 2013). https://doi.org/10.1117/1.JPE.3.033598
Published: 9 April 2013
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Cited by 4 scholarly publications and 1 patent.
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KEYWORDS
Organic light emitting diodes
Luminous efficiency
Electrons
Energy transfer
Quantum wells
Excitons
Electroluminescence
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