Synthesis and Electroluminescence of New Organic Emitters Based on a π-Conjugated 1,3,5-Triazine Core

抄録

The photoluminescence and electron drift mobility of newly synthesized 1,3,5-triazine derivatives were investigated. 1,3,5-Triazine derivatives with one or two 4-(arylethynyl)phenyl groups had single photoluminescence peaks in the blue region, 405-452 nm, in the deposited films. Time-of-flight measurement revealed that electron transport in the films of certain 1,3,5-triazine derivatives was non-dispersive and electron drift mobilities were in the range of 10^-5-10^-4 cm² V^-1 s^-1. OLED devices incorporating 1,3,5-triazine derivatives in the emitting layer had pure blue luminescence at 437 nm and 444 nm. Moreover, these compounds were also able to be used as an electron-transport layer.