Figure 5From: New Colloidal Lithographic Nanopatterns Fabricated by Combining Pre-Heating and Reactive Ion EtchingSEM images of double-layer of PS spheres (1,000 nm in diameter) after the same oxygen RIE conditions with different preheating time:a 0 min,b 1 min,c 3 min, respectively. Thescale bar is 1,000 nm in each imageBack to article page