Electronic Supplementary Material (ESI) for RSC Advances.
This journal is © The Royal Society of Chemistry 2014
Supplementary Information Ⅲ
(a)
(b)
100 nm
100 nm
500 nm
500 nm
20
Number of cubes
Number of cubes
20
12
8
4
0
0
20
40
60
80
100
12
8
4
0
0
20
Side length (nm)
40
60
80
100
Side length (nm)
The Figure shows the tunneling electron microscope image and the size
distribution of Ag nanocubes / nanospheres. Student-t distribution with 95 %
confidence interval was used to determine the size of silver nanocubes and
nanospheres. Again, the following equation was used to calculate the 100 (1-α) %
confidence interval (CI).
X̅ ± tα 2S/ n
…… (3)
In this case, the value of tα 2 is 1.671 under the condition with 60 degree of freedom
and 95% CI according to the table of t distribution; n is the numbers of samples; and S is
the standard deviation of 63 nanocubes and 65 nanospheres, that is 6.9 for nanocubes and
5.2 for nanospheres.
The average size of silver nanocubes and nanospheres are 54.3 ± 1.45 and 49.6 ± 1.01
nm.