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- W4308459435 abstract "Solution-processed thermally activated delayed fluorescence (TADF) emitter is a promising strategy in organic light-emitting device (OLED). In this contribution, the novel emitters named IPy-Ac was synthesized and characterized, in which imidazolopyrazine (IPy) moiety is used as the acceptor and acridine (Ac) is employed as the donor group. In addition, the corresponding emitters (Py-Ac) using pyrazine (Py) as the acceptor are prepared to comparison. Both compounds exhibit clear TADF character in the host matrix. The molecular structure-property relationship is investigated via both calculated and experimental methods. Using both emitters as the dopant, solution-processed OLEDs are fabricated and the IPy-Ac based device achieves the best performance with a maximum external quantum efficiency of 6.36%. This research demonstrates that the IPy moiety can be a promising electron acceptor for the design of TADF materials. Two novel TADF emitters bearing imidazolopyrazine/pyrazine as the acceptor moiety were designed and synthesized. The molecular structure-property relationship was explored in detail. The solution-processed OLEDs based on these two emitters achieved a maximum EQE of 6.36% at 504 nm. • Two novel imidazolopyrazine/pyrazine-based emitters are prepared. • Both emitters exhibit TADF character in host matrix. • The molecular structure-property relationship is investigated. • The solution-processed OLEDs achieve a maximum EQE of 6.36% at 504 nm." @default.
- W4308459435 created "2022-11-12" @default.
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- W4308459435 date "2022-12-01" @default.
- W4308459435 modified "2023-09-29" @default.
- W4308459435 title "Imidazolopyrazine based thermally activated delayed fluorescence: Synthesis, property and the application for solution-processed OLEDs" @default.
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- W4308459435 doi "https://doi.org/10.1016/j.tet.2022.133126" @default.
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