Civil Engineering Reference
In-Depth Information
Prolate
a
Oblate
c
ћ w
a
c
Aspect ratio:
m
=
a
/
c
m
=
c
/
a
e m
e p
100
VO 2 semiconducting
Metallic
90
80
70
60
50
40
30
0.1
0.2
0.5 1
Aspect ratio
2
5
10
m
100
VO 2 semiconducting
Metallic
90
80
70
￿ ￿ ￿ ￿ ￿ ￿
60
50
40
30
0.1
0.2
0.5 1
Aspect ratio
2
5
10
m
11.8 The upper panel depicts a structural model for a composite with
randomly oriented nanoparticles having a dielectric function ε p in a
medium with the dielectric constant ε m . Electromagnetic radiation with
photon energy ¯ ω is indicated. The middle and lower panels show
computed data on luminous and solar transmittance, respectively, vs.
the aspect ratio m for VO 2 -containing composites in semiconducting
( τ < τ c ) and metallic ( τ > τ c ) states. Prolate and oblate spheroids are
characterized by m > 1 and m < 1, respectively. After Li et al. (2010).
 
Search WWH ::




Custom Search