Fig. 4: Light-interactive characteristics of SD-PQLED.
From: Dual-function perovskite light-emitting/sensing devices for optical interactive display
a Curves of capacitance over time of PTAA (top) and CuSCN/PTAA (bottom) films with the light on and off. The insets show the working mechanism of the different functional layers. b The working mechanism diagram of SD-PQLED under UV stimulation. c Device current under different illumination time. d Current curves of the SD-PQLED under irradiation with different light intensities. e The change rate of current vs. illumination intensity (bottom) and illumination time (top). f Typical optical switching characteristics of the device under periodic UV light stimulation
