Extended Data Fig. 9: Measurement of operational lifetime of typical mixture-1.0 devices.
From: Perovskite light-emitting diodes with external quantum efficiency exceeding 20 per cent
a, Extrapolation of lifetime from accelerated ageing tests, from which one can see that the acceleration factor, n, is about 1.5 in the devices investigated herein. b, Measurement of the operational lifetime of a perovskite LED working in continuous luminance mode; by carefully tuning the applied current, we could maintain a luminance output of around 100 cd m−2.
