Figure 4
(a) Transfer curves of the device in a dark state and with the illumination of various wavelengths light. Inset shows a schematic illustration of the QLEDs with 5 wt% V2O5 for the light detecting process. (b) Photo response characteristics of the device. Rising and falling time was defined as the interval between 10 and 90% of the signal. (c) Normalized photo responses according to the different speed of turn on and off the 520 nm wavelength light signal.
