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 cm 2 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.
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