DataVXAdvanced Optical MaterialsPaper
journal article·2019-05

High Efficiency and Low Roll‐Off Hybrid WOLEDs by Using a Deep Blue Aggregation‐Induced Emission Material Simultaneously as Blue Emitter and Phosphor Host

Zeng Xu, Yanbin Gong, Yanfeng Dai, Qian Sun, Xianfeng Qiao, Dezhi Yang, Xuejun Zhan, Zhen Li, Ben Zhong Tang, Dongge Ma

Advanced Optical Materials· Volume 7· Issue 9
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Source abstract

Abstract

Abstract OLEDs with high efficiency and low roll‐off are urgently needed to meet the constantly increasing commercial demands for white organic light‐emitting diodes (WOLEDs) in lighting industry applications. To enhance efficiency and decrease WOLED roll‐off, complicated doping technologies are employed, which result in an additional increase in costs. Herein, a deep‐blue‐light molecule (3TPA‐CN) with aggregation‐induced emission (AIE) is introduced as blue emitter and phosphor host to fabricate WOLEDs. By optimizing the emission zones, high efficiency and low roll‐off hybrid WOLEDs are achieved. The maximum forward‐viewing power and external quantum efficiencies reach 86.7 lm W−1 and 22.3%, and remain 59.2 lm W−1 and 19.6% at a luminance of 1000 cd m−2, fully exhibiting the prospect of AIE molecules as a promising electroluminescence material for the fabrication of high‐performance WOLEDs.
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Research context

OpenAlex topics: Organic Light-Emitting Diodes Research · Luminescence and Fluorescent Materials · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Aggregation‐Induced Emission Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 China

Department of Chemistry Wuhan University Wuhan 430072 China

Institute of Molecular Aggregation Science Tianjin University Tianjin 300072 China

Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction The Hong Kong University of Science & Technology Clear Water Bay Kowloon Hong Kong China

Funding

National Natural Science Foundation of China

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