研究目的
Investigating the advantage of inverted OLEDs (iOLEDs) over conventional OLEDs in terms of air stability and electron injection efficiency without the use of alkali metals.
研究成果
The iOLED-based flexible display demonstrated significantly higher air stability than the conventional-OLED-based display, with approximately half of its initial luminance remaining after 392 days. The use of a solution process and a suitable dopant effectively improved electron injection efficiency, achieving a surface work function as low as 3.0 eV. This study presents a promising approach for developing long-lived flexible displays without stringent encapsulation.
研究不足
The study focuses on specific materials and configurations for iOLEDs, and the generalizability of the findings to other materials or configurations is not explored. The operational stability of iOLEDs using certain interlayers like PEI is noted to be relatively low.
