| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 737862 | Sensors and Actuators A: Physical | 2009 | 4 Pages |
Abstract
Device performances of green phosphorescent light-emitting diodes (PHOLEDs) were investigated according to the doping concentration of tris(2-phenylpyridine) iridium in electron transport type spirobifluorene-based host. Recombination zone was shifted from hole transport layer side to inside light-emitting layer as doping concentration was increased. Luminance efficiency of the green PHOLEDs was improved from 14 cd/A to 33 cd/A by increasing doping concentration from 5% to 10%.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Jun Yeob Lee,