Exciplex-assisted phosphorescent layer/ MXene-contact stretchable electrode based OLEDs with record 17% external quantum efficiency

https://www.eurekalert.org/news-releases/1112580

"overcomes trade-off between mechanical flexibility/ light-emission efficiency... intrinsically stretchable layers instead of rigid LEDs with stretchable islands... MXene-contact electrodes instead of poorly contacting metal nanowire... uniform deformation/ skin-conformable, not prone to failure at rigid junctions... exciplex cohosts convert triplet excitons into singlet excitons for long-range Förster energy transfer, maintaining high brightness even stretched... can be laminated directly onto human skin"