Bis[2-(2-hydroxyphenyl)-pyridine] beryllium, known as Bepp2, belonging to the beryllium complex family, is a blue fluorescence emitter with excellent charge transport ability. Due to its high electron mobility and high triplet energy level, Bepp2 has been used as an electron-transporting and hole/exciton-blocking layer material in OLEDs. High-efficiency blue OLEDs by using Bepp2 as the emitting layer material and high efficiency white OLEDs using Bepp2 as host material have been achieved [1-8].
Bepp2 can be also used as host material to fabricate orange, green, red EL devices.
* Measurable with an optical spectrometer
TGA 365 °C (5% weight loss)
DSC 314 °C (onset)
* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials.