Efficient organic light-emitting diodes with low efficiency roll-off at high brightness using iridium emitters based on 2-(4-trifluoromethyl-6-fluoro phenyl)pyridine and tetraphenylimidodiphosphinate derivatives
Study of the Synthesis and Properties of Ir(
<scp>III</scp>
) Complexes Based on Phosphine Carbonylimide Derivative as Auxiliary Ligand
作者:Qing‐Mei Guo、Guo‐Li Huang、Xin‐Ying Yin、Jian‐Jian Bian、Xiao‐Mei Li、Ming‐Yu Teng
DOI:10.1002/bkcs.12133
日期:2020.12
Three iridium complexes of (dfppy)2Ir(DAPB), (dfppy)2Ir(DAPB), and (dfppy)2Ir(DAPB) were synthesized by using phosphine carbonylimide derivative as auxiliary ligand and fluoro−/trifluoromethyl substituted 2‐phenylpyridine derivatives as primary ligands. Their quantum efficiency range from 19.4% to 38.5%, and show strong rigidochromic effect. The maximum emission wavelengths of solid‐state fluorescence
Efficient organic light-emitting diodes with low efficiency roll-off at high brightness using iridium emitters based on 2-(4-trifluoromethyl-6-fluoro phenyl)pyridine and tetraphenylimidodiphosphinate derivatives