Nanowerk  April 18, 2024 Emerging light-emitting electrochemical cells (LECs) can be cost- and energy-efficiently fabricated by ambient-air printing by virtue of the in situ formation of a p-n junction doping structure. However, the in situ doping transformation renders a meaningful efficiency analysis challenging. Researchers in Sweden have developed a method for separation and quantification of major LEC loss factors, notably the outcoupling efficiency and exciton quenching. They found the shift in the position of the emissive p-n junction in common singlet-exciton emitting LECs to shift markedly with increasing current, and the influence of this shift on the outcoupling efficiency was […]