摘要
以1-(4-三氟甲基苯基)异喹啉(tfmpiq)为主配体,二(二(4-三氟甲基苯基)膦酰)胺(tfmtpip)为辅助配体,成功合成了Ir髥配合物Ir(tfmpiq)2(tfmtpip),并得到了配合物的晶体结构。配合物Ir(tfmpiq)2(tfmtpip)的分解温度为373℃,具有良好的热稳定性。Ir(tfmpiq)2(tfmtpip)的发射光谱主要是MLCT发射,峰位置为613 nm,量子效率为3.7%,HOMO和LUMO轨道能级分别为-5.62和-3.54 e V。基于Ir(tfmpiq)2(tfmtpip)的器件ITO/TAPC(40 nm)/Ir(tfmpiq)2(tfmtpip)(x%)∶mCP(20 nm)/TmPyPB(40 nm)/LiF(1 nm)/Al(100 nm),当掺杂浓度为4%(w/w)时,器件达到最大功率效率和电流效率分别为5.73 lm·W-1和7.13 cd·A-1,而且器件在12.8 V的驱动电压下达到亮度10 542 cd·m-2。
A novel iridium(Ⅲ) cyclometalated complex Ir(tfmpiq)2(tfmtpip) with 1-(4-(trifluoromethyl) phenyl) isoquinoline(tfmpiq) as main ligand and tetra-(4-trifluoromethylpheny) limidodiphosphinate (tfmtpip) as ancillary ligands have been synthesized. The complex Ir(tfmpiq)2(tfmtpip) is thermally stable up to 373℃ indicating good thermal stability. For the emission spectra in toluene, the maximum peak located at 613 nm with quantum efficiency of 3.7%. The HOMO and LUMO levels are calculated as -5.62 and -3.54 eV, respectively. The devices R1-R4 with the structure of ITO/TAPC(40 nm)/Ir(tfmpiq)2(tfmtpip)(x%):mCP (20 nm)/TmPyPB(40 nm)/LiF(1 nm)/Al(100 nm) were fabricated. The device R3 with a 4%(w/w) doped concentration exhibited a luminance of 10 542 cd·m-2 at a driving voltage of 12.8 V with a maximum power efficiency (ηp) of 5.73 lm·W-1 and a maximum current efficiency (ηc) of 7.13 cd·A-1.
作者
李红岩
黄一川
李振彪
郭虹琦
杨欣
杨婷婷
卢爱党
LI Hong-Yan;HUANG Yi-Chuan;LI Zhen-Biao;GUO Hong-Qi;YANG Xin;YANG Ting-Ting;LU Ai-Dang(School of Chemical Engineering and Technology,Hebei University of Technology,Tianjin 300130,China;Engineering Researeh Center of Sea,water Utilization Technology of Ministry of Edueation,Tianjin 300130,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2018年第12期2211-2218,共8页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.21501042)
河北省自然科学基金(No.B2018202182)资助项目