Molecular Engineering of Nonplanar Porphyrin and Carbon Nanotube Assemblies: A Linear and Nonlinear Spectroscopic and Modeling Study
Table 1
Optical coefficients for the materials measured.
Sample
c
Solvent
Im
μM
cm−1
Cm W−1
Esu
GW cm−2
J cm−2
TPP
21.5
DMF
0.11
0.13
TPP + SWNT
21.5
DMF
0.42
0.19
DETPP
0.01 g/ μM
DMF
0.25
0.12
DETPP + SWNT
c. 16 μM
DMF
0.55
0.25
2
tTETPP
c. 16 μM
DMF
0.24
0.13
tTETPP + SWNT
c. 16 μM
DMF
0.57
0.16
2
cTETPP
c. 16 μM
DMF
0.42
0.14
cTETPP + SWNT
c. 16 μM
DMF
0.69
0.24
0
HETPP
c. 16 μM
DMF
0.20
0.25
HETPP + SWNT
c. 16 μM
DMF
0.65
0.23
OETPP
c. 16 μM
DMF
0.20
0.23
OETPP + SWNT
c. 16 μM
DMF
0.73
0.19
n/a*
n/a*
SWNT
0.01 g/L
DMF
0.29
0.19
*These data did not conform to the model, probably because the optical nonlinearities were predominantly caused by scattering in this composite system, whereas the fit assumes purely absorption-based optical nonlinearities.