Abstract
AbstractA promising class of blue‐violet emitters based on a new functional core, the indenopyrazine group, has successfully been synthesized for the first time by substitution with bulky m‐terphenyl side groups in the ortho, meta, or para positions. In particular, the OLED containing the para‐substituted derivative was found to exhibit excellent characteristics, with maximum EL emission at 423 nm, a full width at half maximum of 42 nm, pure violet emission with CIE coordinates (0.173, 0.063), and an external quantum efficiency of 1.88%.
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