PMA-interlayered hole transport layers enabling sub-bandgap emission and improved stability in perovskite LEDs
Key Points
Sub-bandgap electroluminescence occurs in perovskite LEDs with PMA interlayer, enhancing efficiency.
The introduction of PMA as a p-type dopant significantly boosts charge injection efficacy.
Analysis highlights the role of PMA in improving stability across different testing conditions.
These findings suggest potential for optimizing perovskite LEDs in practical applications.
Abstract
Phosphomolybdic acid (PMA) acts as a p-type dopant-like interlayer in the HTL, enabling efficient charge injection and sub-bandgap electroluminescence in PeLEDs.