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Research Article

Development and synthesis of anthracene-based fluorescence material for non-doped OLEDs

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Published online: 17 Jun 2024
 

Abstract

Efficient organic blue materials are essential to develop highly efficient organic light-emitting diodes. However, there is a challenge to commercialize efficient blue compounds due to the fundamentally wide band gap and the lack of pure blue emitters. In this study, the new anthracene-based fluorescent emitter, (4-(10-(4-(9H-carbazol-9-yl)-2-methylphenyl)anthracen-9-yl)-3-methylphenyl)diphenylphosphine oxide (CZm-AN-mPO) was designed and synthesized. The thermal, photophysical and electrochemical properties of the CZm-AN-mPO were systematically investigated. The CZm-AN-mPO exhibits a deep-blue emission at 425 nm and AIE property with a relatively narrow full-width at half maximum of 34 nm. The CZm-AN-mPO based non-doped devices show pure blue emission. The optimized OLEDs indicated maximum external efficiencies of 4.3% and 4.2% at emission layer thickness of 20 nm and 40 nm, respectively.

Disclosure statement

No potential conflict of interest was reported by the author(s)

Additional information

Funding

J. Lee and H.-Y. Park contributed equally to this work. This work was supported by the National Research Foundation (NRF) (2018R1A5A1025594 and 2022R1A2C2091150) by the Ministry of Science and ICT of Korea.

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