Overview
- The device reaches 17% external quantum efficiency, the highest reported for a fully stretchable OLED and a jump from prior ~6.8% results in the field.
- Researchers pair MXene-contact stretchable electrodes—combining MXene with silver nanowires—for high conductivity, mechanical compliance, and tunable work function that improves charge injection.
- An exciplex-assisted phosphorescent emissive layer enables triplet-to-singlet conversion and longer-range energy transfer, preserving exciton use when elastomers are added for stretchability.
- Performance decreases by 10.6% at 60% of maximum strain and retains 83% light output after 100 cycles at 2% strain, with reports differing on maximum stretch (1.6× versus a claimed 2.0×).
- Potential uses include on-skin and clothing-integrated displays for health monitoring, with key hurdles remaining such as long-term operational stability, stretchable encapsulation, and image fidelity.