Research Article
Improvement of Power Efficiency in Phosphorescent White Organic Light-Emitting Diodes Using p-Doped Hole Transport Layer
Table 1
Performance of the WOLEDs with different MoO3 doping concentrations.
| | Doping concentration | Current densitya (mA·cm−2) | Driving voltageb (V) | Max. EQE
(%) | PEb (lm·W−1) | CIE 1931 () chromatic coordinatesc | CRIc |
| | 50% | 222 | 5.6 | 8.1 | 7.1 | (0.4134, 0.3729) | 85 | | 25% | 230 | 5.6 | 8.4 | 7.4 | (0.4303, 0.3893) | 86 | | 10% | 210 | 5.6 | 8.9 | 7.5 | (0.4339, 0.3837) | 84 | | 5% | 165 | 5.7 | 9.3 | 7.9 | (0.4325, 0.3837) | 84 | | undoped | 73 | 6.8 | 9.5 | 6.2 | (0.4596, 0.3826) | 84 |
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aAt 10 V.
bAt luminance of 1,000 cd·m−2.
cAt current density of 153 mA·cm−2.
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