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Multiple-Resonance-Type Blue Fluorescent OLEDs with High Efficiency of Over 25% and Long Device Lifetime of Over 500 H
- Issue Date
- 1-Jan-2022
- Publisher
- John Wiley and Sons Inc
- Keywords
- blue OLEDs; device lifetime; fluorescence; multiple resonance; TTF OLEDs
- Citation
- Digest of Technical Papers - SID International Symposium, v.53, no.1, pp.1477 - 1480
- Volume
- 53
- Number
- 1
- Start Page
- 1477
- End Page
- 1480
- ISSN
- 0097-966X
- Abstract
- A deep blue boron based multiple resonance (MR) type material was synthesized and evaluated. A di-tert-butylphenyl substituent was introduced into the emitter to suppress the intermolecular interactions. A single electroluminescence device and a tandem device were fabricated with a fluorescent OLED using the characteristics of the MR-type emitter with good color purity and high photoluminescence quantum yield. As a result, the single electroluminescence unit and tandem devices exhibited high maximum external quantum efficiency of 11.3% and 25.1%, and long device lifetime of 208 h and 500 h at 1,000 cd/m2, respectively. © 2022. John Wiley and Sons Inc. AIAA. All rights reserved.
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Related Researcher
- Kim, Taekyung
- Science & Technology (Department of Nanomaterials Engineering)