Title of article
Synthesis and electrophosphorescent performances of alkyl-substituted bicycloiridium complexes in polymer light-emitting diodes
Author/Authors
Zhen، نويسنده , , Hongyu and Jiang، نويسنده , , Changyun and Yang، نويسنده , , Wei and Zeng، نويسنده , , Xingrong and Zhang، نويسنده , , Chi and Cao، نويسنده , , Yong، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2005
Pages
6
From page
196
To page
201
Abstract
In this paper, two complexes (mppy)2Ir(tmd) and (bppy)2Ir(tmd) were synthesized and doped into PVK. We find that the alkyl substitution of bicycloiridium complexes on acetylacetonate ligand has a great effect on optimizing the PLED performances. The best device performance is observed for the (bppy)2Ir(tmd)-doped PVK–PBD (40 wt%) device with the concentration of 1 wt%. A maximal external quantum efficiency of QEext = 14.2% ph/el and the luminous efficiency of LE = 33 cd/A with a luminance of 2099 mA/cm2 were achieved at a current density of 6.4 mA/cm2.
Keywords
Alkyl substitution , PVK , PLED , Doping , Bicycloiridium complex
Journal title
Synthetic Metals
Serial Year
2005
Journal title
Synthetic Metals
Record number
2082599
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