| 초록 |
Flexible and transparent displays have been explored to create a new environment of human-machine interfaces. However, the fragile transparent conducting oxide and opaque metal electrodes used in current LED technologies cannot satisfy their desired mechanical and optical features. In this work, we report a demonstration of flexible and transparent polymer LEDs (FT-PLEDs) using solution-processable polymeric transparent electrodes. The resulting FT-PLEDs exhibit outstanding dual-side light-outcoupling performance with high optical transmittance of 75% at 550 nm wavelength and excellent mechanical durability under 9% bending strain and a repetitive bending 1,000 cycles. Moreover, ultrathin FT-PLEDs developed on 4-μm-thick plastic foils by all-solution processing show extremely deformable and completely foldable light-emitting functionality. Our approach is expected to open a new avenue for wearable transparent displays that could expand next-generation human-machine interfaces. |
