High efficiency mer-iridium complexes for organic light-emitting diodes.
We have developed a new process at high vacuum (5 x 10(-5) Torr) and high temperature (300 degrees C) to produce meridional iridium complexes from the dimer; interestingly, mer-Ir(m-ppy)(3) overthrows the concept of poor efficiency and shows excellent efficiency which is almost equal to that of fac-Ir(ppy)(3), fac-Ir(m-ppy)(3) and (ppy)(2)Ir(acac).
Yang
Cheng-Hsien
CH
National Cheng Kung University, Department of Chemistry, No. 1, Ta-Hsueh Road, Tainan, Taiwan, 701, Republic of China.
Fang
Kai-Hung
KH
Chen
Chun-Hung
CH
Sun
I-Wen
IW