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

submitted on 08.06.2020, 14:24 and posted on 11.06.2020, 05:58 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.


Email Address of Submitting Author


South China University of Technology



ORCID For Submitting Author


Declaration of Conflict of Interest

There is no conflict of interest