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Effect of dielectric character of electron transporting materials on the performance of organic light-emitting diodes

Published online by Cambridge University Press:  19 April 2018

Rohit Ashok Kumar Yadav ,
Deepak Kumar Dubey ,
Sun-Zen Chen ,
Sujith Sudheendran Swayamprabha ,
Tzu-Wei Liang  and
Jwo-Huei Jou
Rohit Ashok Kumar Yadav
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
Deepak Kumar Dubey
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
Sun-Zen Chen
Affiliation:
Center for Nanotechnology, National Tsing Hua University, Hsinchu 30013, Taiwan
Sujith Sudheendran Swayamprabha
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
Tzu-Wei Liang
Affiliation:
Global Science Instruments Co. Ltd., Hsinchu 30013, Taiwan
Jwo-Huei Jou*
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
*
*(Email: jjou@mx.nthu.edu.tw)
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Abstract

Organic light-emitting diodes (OLEDs) have progressively attracted generous attention because of their versatile applications in solid state lighting and full color displays. High-efficiency is crucial for OLED devices being energy saving and to have a longer lifespan. Numerous approaches have been attempted to attain high-efficiency OLEDs via newly synthesized organic materials, light-extraction structure design and energy-efficient device architectures. The organic materials used in optoelectronic devices have inherently low dielectric constant. In this work, we demonstrate a comprehensive model to quantitatively investigate the role of dielectric constant of the electron transporting material on the electric field distribution, charge drift and exciton recombination probability across the emissive layer (EML) and electron transport layer (ETL) in organic light-emitting diode via commercialized electrical simulation package SETFOS.

Keywords

electrical propertiessimulationmicroelectronicsmodeling
Type
Articles
Information
MRS Advances , Volume 3 , Issue 59: Electronic and Photonic Materials , 2018 , pp. 3445 - 3451
Copyright
Copyright © Materials Research Society 2018 

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