Phosphorescent OLEDs: Sky-Blue Phosphorescent OLEDs with 34.1% External Quantum Efficiency Using a Low Refractive
Hyun Shin1, Jeong-Hwan Lee1, Chang-Ki Moon1
1Department of Materials Science and Engineering, Seoul National University, Seoul, 151-742, South Korea.
Advanced Materials (Deerfield Beach, Fla.)
|June 17, 2016
Abstract:
J.-J. Kim and co-workers achieve highly efficient blue organic light-emitting diodes (OLEDs) using a low-refractive-index layer. As described on page 4920, an external quantum efficiency over 34% is achieved, owing to the low refractive index of the materials. A milepost and a shining entrance of the castle are the metaphor indicating the way to highly efficient blue OLEDs. On the way to the castle, the depicted chemical structures serve as the light-emitting layer.
