Chiu T.-LChen T.-YHuang Y.-MMAN-KIT LEUNGJIUN-HAW LEEChiu Y.-C.2022-12-142022-12-14201918832490https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105337424&partnerID=40&md5=608e18bdad9e47d72dcf693f60f3abb3https://scholars.lib.ntu.edu.tw/handle/123456789/626259A new wide bandgap material, CbzBzCN, was successfully synthesized to be the host of an efficient blue phosphorescent light emitting diode (OLED), which also particularly performs a very long lifetime of triplet excitons reach approximate 2 msec. The OLED showed the maximum current efficiency and external quantum efficiency of 46.3 cd/A and 18.7%, respectively. © 2019 ITE and SID.Efficiency; Phosphorescence; Blue phosphorescent organic light-emitting diodes; Current efficiency; External quantum efficiency; Long lifetime; Triplet excitons; Triplet lifetimes; Wide band-gap material; Organic light emitting diodes (OLED)conference paper2-s2.0-85105337424