Tung, Y.-L.Y.-L.TungLee, S.-W.S.-W.LeeChi, Y.Y.ChiTao, Y.-T.Y.-T.TaoChien, C.-H.C.-H.ChienCheng, Y.-M.Y.-M.ChengPI-TAI CHOUSHIE-MING PENGLiu, C.-S.C.-S.Liu2018-09-102018-09-102005http://www.scopus.com/inward/record.url?eid=2-s2.0-12844262308&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/315171The OLED device using 6% of Os(fptz)2(PPh2Me) 2 as the dopant emitter in a CBP host and BPAPF as hole transporting material shows an external quantum efficiency of 15.3% and luminous efficiency of 21.3 cd A-1, power efficiency of 6.3 lm W-1 at 20 mA cm-2. An even higher external quantum efficiency of ∼20% was achieved at a low current density of ∼1 mA cm-2.application/pdf357431 bytesapplication/pdf[SDGs]SDG7Current density; Energy efficiency; Osmium; Quantum efficiency; Semiconducting organic compounds; Semiconductor doping; Dopants; Luminous efficiency; Organic light-emitting diodes (OLED); Power efficiency; Light emitting diodes; osmium; article; complex formation; density; light emitting diode; luminescence; power supply; quantum mechanics; reaction analysis; synthesis; transport mediumjournal article10.1039/b414636k2-s2.0-12844262308WOS:000226550300003