Figure 3

Strategy for performance improvements. (a) Schematic diagram showing the electron transfer under forward bias. (b) Schematic diagram showing the electron transfer under reverse bias. (c) Schematic diagram of the antiparallel μLED pair. (d) Schematic diagram showing the electron transfer in the antiparallel μLED pair under reverse bias. (e) Current–frequency and luminescence power–frequency relationships of the antiparallel μLED pair. Insets are the photographs of a single μLED (top) and an antiparallel μLED pair (bottom). (f) Current–voltage and luminescence power–voltage relationships of the antiparallel μLED pair.