506CHAPTER 17 Smart precursors for smart nanoparticles
which it relaxes by the emission of a photoelectron. The electron energy spectrum is
a characteristic of the emitting atom type. Lines in the spectrum are labeled accord-
ing to the energy level from which they originate. It can provide a chemical bonding
identication of the surface species, elemental surface analysis, and compositional
depth prole.
Photoelectron
h
ν
hν–E
b
17.12.7 BRUNAUER, EMMETT AND TELLER (BET)
This method is used to determine the effective surface area of a solid material even
with complicated shapes by using absorbed gas molecules as per rule.
17.13 APPLICATIONS OF NANOMA ...
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