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.
(a) XRD patterns and (b) Raman spectra of monodisperse solid silica spheres and monodisperse porous silicon spheres. (c) SEM micrographs of monodisperse solid silica spheres, inset shows the high magnification SEM micrograph of the silica sphere. (d) SEM micrograph of monodisperse porous silicon spheres.
