Nanomaterials for Nanoscience and Nanotechnology part 2 pps
Nanomaterials for Nanoscience and Nanotechnology part 2 pps
... 2. 2 0 0
fcc 561 2. 8 0 0
ico 55 1.1 40 ± 14 29 ± 10
ico 147 1.6 7 ± 714± 13
ico 309 2. 1 0 1 ± 1
ico 561 2. 7 0 1 ± 1
dec 39 1.0 30 ± 315± 2
dec 116 1.5 20 ± 14 31 ± 21
dec 25 8 2. 1 0 0
dec 605 2. 9 ... here, a simple form of the
simulated annealing algorithm is used and found to be quick and reliable [22 , 29 ], the
code used for this work is written in C and it runs...
Nanomaterials for Nanoscience and Nanotechnology part 10 pps
... symmetry. These clean silver nanoparticles were formed by in situ deposition
in a UHV STEM instrument (MIDAS). Figure 4 -22 a shows such a CEND pattern and
Fig. 4 -22 b shows a simulated CEND pattern ... (Fig.
4 -28 ). If R/L < 1, the brightness of a particle increases with the size of the particle and
the image intensity has a maximum at the center of the particle. If R/L > 1, the...
Nanomaterials for Nanoscience and Nanotechnology part 1 pptx
... levels, bands are formed. An energy gap between the con-
duction band and the valence band would be formed, which is a key factor in deter-
Nanomaterials for Nanoscience and Nanotechnology 5
Part ... V.G.
Ralchenko, Science, 1998, 28 2, 897.
[50] J.E.G.J. Wijnhoven and W.L. Vos, Science, 1998, 28 1, 8 02.
[51] B.T. Holland, C.F. Blanford and A. Stein, Science, 1998, 28 1...
Nanomaterials for Nanoscience and Nanotechnology part 3 potx
... 34, 22 93.
X-ray Characterization of Nanoparticles 35
Table 2- 2. Fit results of EXAFS spectrum for 2. 0 nm nanoparticles. Bulk gold structural parameters
are: r
Au-Au
= 2. 865 and N
Au-Au
= 12; ... A. Di Cicco and C. R. Natoli, Phys. Rev. B 1995, 52, 15 122 ; A. Filipponi and A. Di
Cicco, Phys. Rev. B 1995, 52, 15135; A. Di Cicco, Phys. B 1995, 20 8& ;20 9, 125 .
[46] P. Ei...
Nanomaterials for Nanoscience and Nanotechnology part 4 docx
...
{111}
and
{22 0}
are both trans-
ferred with the negative sign, and there is no relative phase change between
{111}
and
{22 0}
, thus, the interferences between
{000}
,
{111}
and
{22 0}
give ... (Hardcover); 3- 527 -29 60009-4 (Electronic)
3 .2 High-resolution TEM lattice imaging
3 .2. 1 Image formation
As a start, we first illustrate the image formation process in a...
Nanomaterials for Nanoscience and Nanotechnology part 6 pdf
... electron
from 2p state to 3d levels leads to the formation of white lines. The L
3
and L
2
lines are
the transitions from 2p
3 /2
to 3d
3 /2
3d
5 /2
and from 2p
1 /2
to 3d
3 /2
, respectively, and their
intensities ... 3 -24 . For simplicity
one assumes that the electron does not penetrate the particle. In terms of spherical
coordinates (r,,), r =(x
0
2
+ z
2
)
1 /2
, co...
Nanomaterials for Nanoscience and Nanotechnology part 8 ppt
... overlapping discs. The numeral 2 stands for two-
beam interference, 3 for three-beam interference,
4 for four-beam interference, and the letter D indi-
cates detector positions for dark-field lattice ... [4, 11]:
I
BF
(X) = 1 2[ 1±cos(sf(X))]*|t(X)|
2
(4-9)
In a weak phase object approximation cos(sf(X)) ~ 1±(sf(X))
2
, thus:
I
BF
(X) = 1±(sf(X)
2
*|t(X)|
2
(4-10)
This is...
Nanomaterials for Nanoscience and Nanotechnology part 9 pot
... N
1
pixels of a particle and I
2
associated with an
expanded area of N
2
pixels, the net integrated intensity I
total
due to only the particle is
given by:
I
total
=
I
1
N
2
ÀI
2
N
1
N
2
ÀN
1
(4-13)
In ... of Nanoparticles 103
Figure 4-16. Intensity and radius data from particles in HAADF and SE images of silver nanoparticles
plotted as (intensity)
1/3
against particle radius...
Nanomaterials for Nanoscience and Nanotechnology part 11 pdf
... a large particle with N
2
atoms and an integrated
intensity I
2
: N
1
= N
2
(I
1
/I
2
). This relationship indicates that a large particle could be
used as an internal calibration standard to ... pioneering
work of MacDonald and Waldrop [ 122 ]. The driving force for developing high spatial
resolution SAM is related to the characterization of nanoparticles and other nano-
stru...
nanomaterials for nanoscience and nanotechnology, 2000, p.132
... 2. 2 0 0
fcc 561 2. 8 0 0
ico 55 1.1 40 ± 14 29 ± 10
ico 147 1.6 7 ± 714± 13
ico 309 2. 1 0 1 ± 1
ico 561 2. 7 0 1 ± 1
dec 39 1.0 30 ± 315± 2
dec 116 1.5 20 ± 14 31 ± 21
dec 25 8 2. 1 0 0
dec 605 2. 9 ... Marti, and V.G.
Ralchenko, Science, 1998, 28 2, 897.
[50] J.E.G.J. Wijnhoven and W.L. Vos, Science, 1998, 28 1, 8 02.
[51] B.T. Holland, C.F. Blanford and A. Stein, Sci...
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