21‐4: The Understanding of Bottom Emission Blue OLED Efficiency, Lifetime Trends and Capacitance Curves with Different EILs

We discuss the effects of different electron injection layers (EILs) (NaF/LiF/Liq/ETL:Li) on the electrical properties, lifetime and capacitance systematically base on the bottom emission blue OLED device in the paper. We can determine the aging speed and initial decay of the OLED device from the ch...

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Published in:SID International Symposium Digest of technical papers 2024-06, Vol.55 (1), p.268-271
Main Authors: Jia, Wenbin, Liu, Xiaoning, Li, Feng, Wan, Xiang, Sun, Li, Zheng, Kening, Ma, Kaihong, Xu, Minghong, You, Juanjuan, Shih, Huai-Ting, Yu, Jianwei
Format: Article
Language:English
Subjects:
Blue OLED
Capacitance
EIL
Electrical properties
Emission
Initial Decay
Ion migration
IVL
Lifetime Collapse
Mechanism
Service life assessment
TOF-SIMS
Transient Fluorescence
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container_title SID International Symposium Digest of technical papers
container_volume 55
creator Jia, Wenbin
Liu, Xiaoning
Li, Feng
Wan, Xiang
Sun, Li
Zheng, Kening
Ma, Kaihong
Xu, Minghong
You, Juanjuan
Shih, Huai-Ting
Yu, Jianwei
description We discuss the effects of different electron injection layers (EILs) (NaF/LiF/Liq/ETL:Li) on the electrical properties, lifetime and capacitance systematically base on the bottom emission blue OLED device in the paper. We can determine the aging speed and initial decay of the OLED device from the characteristics of the capacitance. In the Addition, the mechanism of diverse inorganic electron injection layers resulting in the different characteristics of OLED devices is deeply analyzed. Finally, the cause of lifetime collapse with thicker inorganic EIL (70A) is speculatedfrom the two aspects of ion migration by TOF‐SIMS and electron injection capacity.
doi_str_mv 10.1002/sdtp.17506
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subjects Blue OLED
Capacitance
EIL
Electrical properties
Emission
Initial Decay
Ion migration
IVL
Lifetime Collapse
Mechanism
Service life assessment
TOF-SIMS
Transient Fluorescence
title 21‐4: The Understanding of Bottom Emission Blue OLED Efficiency, Lifetime Trends and Capacitance Curves with Different EILs
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