Research Article

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.

SamplecSolvent Im
μMcm−1Cm W−1EsuGW cm−2J cm−2

TPP21.5DMF0.11 0.13
TPP + SWNT21.5DMF0.42 0.19
DETPP0.01 g/ μMDMF0.25 0.12
DETPP + SWNTc. 16 μMDMF0.55 0.25 2
tTETPPc. 16 μMDMF0.24 0.13
tTETPP + SWNTc. 16 μMDMF0.57 0.16 2
cTETPPc. 16 μMDMF0.42 0.14
cTETPP + SWNTc. 16 μMDMF0.69 0.24 0
HETPPc. 16 μMDMF0.20 0.25
HETPP + SWNTc. 16 μMDMF0.65 0.23
OETPPc. 16 μMDMF0.20 0.23
OETPP + SWNTc. 16 μMDMF0.73 0.19n/a*n/a*
SWNT0.01 g/LDMF0.29 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.