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Violet-Blue Aggregation-Induced Emission Emitters for Non-Doped OLEDs with CIEy Smaller than 0.046

preprint
submitted on 08.06.2020 and posted on 11.06.2020 by Pengbo Han, Chengwei Lin, Dongge Ma, Anjun Qin, Ben Zhong Tang

High emission efficiency and finite molecular conjugation in aggregate state are two desirable features in violet-blue emitters. Aggregation-induced emission luminogens (AIEgens) have surfaced as promising luminescent materials that possess both features. Herein, we report the design and synthesis of a group of violet-blue emissive AIEgens with photoluminescence quantum yield higher than 98% in their film states. When utilizing these AIEgens as non-doped emitting layers, the fabricated organic light-emitting diode exhibit a maximum external quantum efficiency of 4.34% with Commission Internationale de L’Eclairage (CIE) coordinates of (0.159, 0.035), which are amenable to next generation Ultra-high Definition Television (UHDTV) display standard.

History

Email Address of Submitting Author

msqinaj@scut.edu.cn

Institution

South China University of Technology

Country

China

ORCID For Submitting Author

0000-0001-7158-1808

Declaration of Conflict of Interest

There is no conflict of interest

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