Researchers from Korea's Institute for Basic Science, led by Professor KIM Dae-Hyeong, published a new article in Nature that details intrinsically stretchable quantum dot LEDs.
The researchers say that using current technology, making stretchable light-emitting devices results in poor luminous performance. The researchers now produced the intrinsically stretchable QD-LEDs using a mechanically soft and stretchable emissive layer consisting of a ternary nanocomposite of colloidal quantum dots, an elastomeric polymer and a charge transport polymer.
The light-emitting layer maintains a nearly constant interparticle distance even under 50% strain, ensuring reliable operation of the QD-LED under stretching. As part of the research, the team fabricated full-color passive matrix displays.