Enhance the Light Extraction Efficiency of QLED with Surface Micro-Nanostructure

Figure 1

The models of QLEDs with surface micro-nanostructure: (a) QLED coupled with a microprism array (Model I), (b) QLED coupled with a flat convex lens (Model II), and (c) QLED coupled with a flat convex lens whose bottom is filled with a compound eye structure (Model III). (d) A control model without micro-nanostructure (Model IV).

(a)

(b)

(c)

(d)