城戸・笹部・千葉研究室のM1 中村剛瑠君と笹部久宏准教授の BODIPY 誘導体を用いた高効率・長寿命・高色純度緑色有機ELに関する論文が英国化学会 (Royal Society of Chemistry) の Molecular Systems Design & Engineering (MSDE) (IF: 4.920) に受理されました。
本研究は、JSPS 科研費（基盤研究B, 20H02807）、NEDO 官民による若手研究者発掘支援事業 (21502128-0) の助成を受けたものです。
Title: Highly efficient and stable green fluorescent OLEDs with high color purity using a BODIPY derivative
By Takeru Nakamura, Hisahiro Sasabe,* Shoki Abe, Kengo Kumada, Ryo Sugiyama, Takanori Hanayama, and Junji Kido
Abstract: Although high color purity and efficient organic light-emitting devices (OLEDs) are imperative for high-resolution display applications, the stability of these OLEDs lags far behind that of OLEDs based on conventional thermally activated delayed fluorescent and/or phosphorescent emitters. In this work, using a BODIPY derivative, we successfully developed high-efficiency, long-lifetime green OLEDs with high color purity. Based on sophisticated device engineering especially by reducing carrier accumulation at hole-transporter/emission layer interface, the optimized device realized a narrow full width at half maximum of 32 nm, CIE coordinates of (0.28, 0.67), external quantum efficiency of approximately 19%, and lifetime (LT50) of 14000 h at 1000 cd/m2. The device stability was 4.7 times longer than that of the previous work, and among the best reported in the related literature.
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