Dibenzothiophene/Terpyridine Conjugated Asymmetric Electron-Transporters For High-Efficiency And Long-Life Green Phosphorescent Oleds

Tomohiro Maruyama,Hisahiro Sasabe,Yuichiro Watanabe,Tsukasa Owada,Ryo Yoshioka,Yu Saito,Tomoya Kawano,Junji Kido

CHEMISTRY LETTERS（2021）

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摘要

A series of dibenzothiophene/terpyridine conjugated asymmetric electron-transporters named snTPys (n = 2, 3, 4) were developed. A green phosphorescent OLED with snTPy as an electron-transporter exhibited an external quantum efficiency of 24% at 1000 cd m(-2) with a long operation lifetime at 50% of the initial luminance of 19,000 hrs at 1000 cd m(-2).

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关键词

Organic light-emitting device (OLED), Terpyridine derivative, Electron-transporter

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