Two host materials, 9-(3′′-(9H-carbazol-9-yl)-[1,1′:2′,1′′-terphenyl]-3-yl)-α-carboline (CzOTCb) and 3,3′′-bis(α-carbolin-9-yl)-1,1′:2′,1′′-terphenyl (CbOTCb), derived from carboline and ortho-linked terphenyl were synthesized as high triplet energy materials and showed a high triplet energy of 2.90 eV. CzOTCb and CbOTCb were evaluated as the host materials for blue phosphorescent organic light-emitting diodes and high quantum efficiencies of 27.4% and 28.8% were obtained using the CzOTCb and CbOTCb hosts, respectively.
由咔啉和正交链接的三
联苯合成了两种主材料,9-(3′′-(
9H-咔唑-9-基)-[1,1′:2′,1′′-三
联苯]-3-基)-α-咔啉(CzOTCb)和 3,3′′-双(α-咔啉-9-基)-1,1′:合成了由咔啉和正交连接的三
联苯衍生的高三重能材料 2′,1′′-三
联苯 (CbOTCb),并显示出 2.90 eV。对 CzOTCb 和 CbOTCb 作为蓝色
磷光有机发光二极管的宿主材料进行了评估,使用 CzOTCb 和 CbOTCb 宿主分别获得了 27.4% 和 28.8% 的高量子效率。