Abstract
An enhanced electroluminescent (EL) performance of organic light emitting devices (OLED) containing a Ag/LiF cathode structure was analyzed. It was found that the efficiency of electron injection from the cathode depends on the thickness of the LiF buffer layer. A brigthness of 16,000 cd/m2 and EL efficiency of 4.8 cd/A was achieved with an Ag/LiF cathode. This dependence of electron injection of the LiF thickness can be understood using the tunneling model.
Original language | English |
---|---|
Pages (from-to) | 3828-3830 |
Number of pages | 3 |
Journal | Journal of Applied Physics |
Volume | 95 |
Issue number | 7 |
DOIs | |
State | Published - 1 Apr 2004 |
Externally published | Yes |