Figure 6
(a) Circuit diagram that used two dual-functional QLEDs. Input laser signal enables to produce enough electrical signal from the first device (PD) to turn-on the second device (QLEDs) for the light emission. (b) Periodic photoresponses of the PD according to the 520 and 635 nm wavelength light signal measured at (ii) Vout of the circuit diagram. (c) Luminescence characteristics of the QLEDs according to the periodic input laser signal (λ = 520 nm) into the PD.
