Figure 12.
SEM (scanning electron microscope) cross sections of chemically developed images of thin-films of (a) PMMA-PS (polymethyl methacrylate-polystyrene) block copolymers, (b) PMMA-PS/CeO2 3%, (c) PMMA-PS/CeO2 5%, and (d) PMMA-PS/CeO2 7%.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.