Date：2016-03-11 |
Views：1745 |
OLED Information 20160311 |
Operational stability enhancement in organic light-emitting diodes with ultrathin Liq interlayers
Article excerpt is from : Daniel Ping-Kuen Tsang & Chihaya Adachi
Scientific Reports | 6:22463 | 2016
The stability of Green TADF OLED was greatly improved by introducting ultrathin (1 to 3 nm) interlayers of Liq between hole-blocking layer and its surrounding emissive and electron-transport layers.
Under constant current operation starting at a luminescence of 1,000 cd/m2, the time to reach 90% of initial luminance (LT90) increased eight times, resulting in
LT90 = 1,380 hours after insertion of the interlayers. Combining this new concept and mixed host system, LT95 was further extended to 1315 hours that is 16 times of reference device.
