Improving Light Extraction of Organic Light-Emitting Devices by Attaching Nanostructures with Self-Assembled Photonic Crystal Patterns
Figure 3
SEM images are for the 400 nm period PS nanospheres distribution at spin speed of (a) 2000 rpm, (b) 500 rpm, and (c) 1100 rpm, respectively. (d) The enlarged SEM image is from (c) for a single-monolayered nanosphere array patterns with hexagonal close-packed uniform distribution and the inset image is the corresponding cross-sectional morphology. SEM images are for PS nanospheres arrays with (e) 200 and (f) 800 nm periodicity at spin speed of 2000 and 400 rpm, respectively.
