博士研究員の宇田川さんの外部量子効率30%、低電圧駆動、低ロールオフを同時に実現した超高効率青色リン光素子に関する「Simultaneous Realization of High EQE of 30%, Low Drive Voltage, and Low Efficiency Roll-Off at High Brightness in Blue Phosphorescent OLEDs」と題する論文が Best of Advanced Optical Materials 2016 の Best 2 に選出されました！論文は Advanced Optical Materials のサイトでフリーで読めるようになっています。宇田川さん、おめでとうございます！
Simultaneous realization of high EQE of 30%, low drive voltage, and low efficiency roll-off at high brightness in blue phosphorescent OLEDs
Kazuo Udagawa, Hisahiro Sasabe*, Fumiaki Igarashi, and Junji Kido*, Advanced Optical Materials, 2016, 4, 86.
Abstract: A state-of-the-art blue OLED that simultaneously realizes a driving voltage of 3.25 V, EQE of over 30%, and a power efficiency of 78 lm W−1 at high brightness of 1000 cd m−2 is developed. By using a mixed-host system, the device showed ca. 1.4-times higher power efficiency than that of the corresponding DEML at high brightness of 1000 cd m−2.
