| 초록 |
Although OLED has been adopted for display and lighting applications, OLED still shows high manufacturing cost because of its fabrication process in high vacuum ambient. In spite of various attempts for the cost-effectiveness, the costly vacuum process has been regarded as an inevitable method for highly efficient OLEDs. In this study, a polymer and silver nanowire hybrid electrode was proposed for the top electrode of polymer LEDs, whose sheet resistance value was below 20 Ω/sq. And the polymer LED were prepared by the lamination process in N2 ambient. In addition, by applying a hole injection layer with high work function, we realized OLEDs with a low voltage driving and high luminous efficiency, which were comparable to the devices from the conventional vacuum thermal evaporation method. Through the proper choice of the electrode structure and the fully vacuum-free process, the proposed hybrid electrode can be expected to become a potential element for the low-cost OLED lightings. |
