PHYS01200704032 Debes Ray - Homi Bhabha National Institute

d/d (Q) (cm -1 )
S(Q)
P(Q)
Chapter 3: Multi-Technique Approach for Characterization of Gold Nanoparticles
(a)
1.0
0.8
0.6
0.4
0.2
(b)
0.0
1.2
1.0
0.8
0.6
0.4
0.2
(c)
0.0
0.5
0.4
0.3
0.2
0.1
0.0
0.001 0.05 0.10 0.15 0.20 0.25 0.30 0.35
Q (Å -1 )
Figure 3.11. Typical curves for (a) P(Q), (b) S(Q) and (c) dΣ/dΩ(Q).
(ii) Spherical Shell (Core-Shell Particle)
The form factor for spherical shell with inner radius R 1 and outer radius R 2 (= R 1 + t), where t
is thickness can be obtained by subtracting the empty core of radius R 1 from sphere of radius
R 2 with proper weighting by the volumes. P(Q) for spherical shell is written as [180,181]
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