Figure 4
Photoluminescence spectra (PL) of (a) green and (b) red perovskite quantum dots (PQDs) with different thicknesses excited by blue LEDs (λex = 460 nm). (c) Schematic illustration and (d) cross-sectional scanning electron microscopy image of photopatterned PQD/siloxane composite array filled with a black mold matrix (scale bar: 30 µm). Optical microscope images of photopatterned (e) green and (f) red PQD/siloxane composite array in a black mold matrix on a substrate, excited by blue LEDs (λex = 460 nm) (scale bar: 100 µm).
