Extended Data Fig. 8: Additional characterizations of perovskite LEDs.
From: Efficient light-emitting diodes from mixed-dimensional perovskites on a fluoride interface
a, Angular emission profile of the perovskite LEDs. The angular emission data closely resembles the Lambertian profile. b, Comparison of current-voltage characteristics between devices with structures of ITO/TFB/LiF (1 nm)/perovskite/TPBi (50 nm)/LiF/Al and ITO/TFB/LiF(1 nm)/TPBi (50 nm)/LiF/Al. c, Comparison of current-voltage characteristics between devices with structures of ITO/TPBi/LiF/Al, ITO/LiF/TPBi/LiF/Al and ITO/TFB/LiF/TPBi/LiF/Al. d, Comparison of current-voltage characteristics between devices with different thickness of LiF, ITO/TFB/LiF(0,1,2,5 nm)/TPBi/LiF/Al.
