Owada, Tsukasa; Sasabe, Hisahiro; Sukegawa, Yoshihito; Watanabe, Taiki; Maruyama, Tomohiro; Watanabe, Yuichiro; Yokoyama, Daisuke; Kido, Junji published the artcile< A terpyridine-modified chrysene derivative as an electron transporter to improve the lifetime in phosphorescent OLEDs>, SDS of cas: 329214-79-1, the main research area is terpyridine chrysene derivative electron transporter phosphorescent organic LED lifetime.
A terpyridine-modified chrysene derivative, abbreviated as B3TPyC, was designed and developed to be used as electron-transport layers (ETLs) toward the construction of highly stable phosphorescent OLEDs. A green phosphorescent OLED with a B3TPyC ETL exhibited a low turn-on voltage of 2.4 V at 1 cd m-2 and an external quantum efficiency of 17.5% at 1000 cd m-2 with a long operation lifetime at 50% of the initial luminance (LT50) of over 258 h at c.d. 25 mA cm-2 (an initial luminance of ∼12,000 cd m-2), which corresponds to a LT50 of 19,000 h at 1000 cd m-2. This is >1.5 times longer than the time of luminance decay provided by the phenylpyridine counterpart named B3PyPC. These results clearly show the potential and usefulness of terpyridine-based chrysene derivatives to be applied in high-performance OLEDs with high operational stability.
Journal of Materials Chemistry C: Materials for Optical and Electronic Devices published new progress about Atomic force microscopy. 329214-79-1 belongs to class pyridine-derivatives, and the molecular formula is C11H16BNO2, SDS of cas: 329214-79-1.