Improving Light Extraction of Organic Light-Emitting Devices by Attaching Nanostructures with Self-Assembled Photonic Crystal Patterns

Table 2

The distribution results for the self-assembled PS nanosphere patterns at different spin speed conditions.

Diameter of PS balls (nm)	Concentration (methanol : PS latex)	Spin speed (rpm)	Corresponding image	Results
400	1 : 2	2000	Figure 3(a)	Random arranged PS patterns with obvious defects
400	1 : 2	500	Figure 3(b)	Single- or multilayered PS balls stacking
400	1 : 2	1100	Figures 3(c) and 3(d)	Single-layered and close-packed PS patterns