title: Synthesis and Electroluminescence of Novel Pyrene-Fused Chromophores.
abstract: Using 4,9-dibromopyrene as a key intermediate, two new fused-core compounds, TP-PFF and TP-PFC-TP, were synthesized. These compounds not only exhibited excellent thermal stability but also yielded superior electroluminescence (EL) devices with a lower turn-on voltage, over 50% greater efficiency, and over 3 times longer lifetime than did a similar compound lacking a fused core. This new core-forming method can be applied in various applications with many different core groups.
authors.affiliation: Department of Chemistry/Display Research Center, The Catholic University of Korea, Bucheon 420-743, South Korea.
authors.forename: Jaehyun
authors.initials: J
authors.lastname: Lee
authors.affiliation: Department of Chemistry/Display Research Center, The Catholic University of Korea, Bucheon 420-743, South Korea.
authors.forename: Jongwook
authors.initials: J
authors.lastname: Park