ZnCuInS/ZnSe/ZnS Quantum Dot-Based Downconversion Light-Emitting Diodes and Their Thermal Effect

Figure 2

The evolution of LED spectra with the increase of QD quantity (a); the emission spectra of the as-fabricated LEDs under different voltage ((b) for red, (c) for yellow, and (d) for green LEDs).

(a)

(b)

(c)

(d)