Electroabsorption of metallophthalocyanines

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Abstract
Electroabsorption spectra have been measured on poly(methyl methacrylate) thin films doped with three kinds of metallophthalocyanines: tetrakis (tert-butyl) metal-free and lead phthalocyanines, and hexadeca (trifluoroethoxy) metal-free phthalocyanine. The third-order nonlinear optical susceptibility, (Chi) (3) (-(omega) ; (omega) , O, O), was determined from the electric field-induced absorption change. The considerable differences in absorption, electroabsorption, and complex (Chi) (3) (-(omega) ; (omega) , O, O) spectral profiles of these metallophthalocyanines are attributable to the difference in molecular aggregation states.

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