Optical properties of zinc phthalocyanine nanoparticle dispersions

Neutral d8 metal bis-dithiolene complexes: Synthesis, electronic properties and applications

“…The complexes, most studied as optical limiters, are fullerenes (C 60 ) [66][67][68] and phthalocyanine complexes [69][70][71]. Ji et al report that the optical limiting ability of 15, measured at 532 nm with nanosecond (ns) and picosecond (ps) duration laser pulses, is better than that of C 60 in ns measurements while it is nearly the same as that of C 60 in ps measurements [64].…”

Carbon nanotubes and nanotube composites for nonlinear optical devices

“…Atomic force microscopy measurements reveal that the rootmean-square diameter of nanotubes decreases to less than 2 nm at 8.0 Â 10 À3 mg ml À1 before saturating at this level. Even with smaller sizes, the individual nanotubes still exhibit superior optical limiting performance for 532 nm ns pulses than phthalocyanine nanoparticles 59 and Mo 6 S 4.5 I 4.5 nanowires. 60 According to the well-calibrated size distribution of nanotubes, one could deduce the linear and nonlinear extinction coefficients for a single nanotube.…”

Synthesis, spectroscopic and DFT Characterization of 4β-(4-tert-Butylphenoxy)phthalocyanine positional isomers for non-linear optical absorption

“…7) were constructed to obtain the experimental b exp values of the respective isomers. The b exp values are compared with those reported previously for the a derivatives 41,42 and display the following trend: Fraction A (9.31 × 10 -10 mMW -1 )> Fraction B (7.89 × 10 -10 mMW -1 )> Fraction C (7.32 × 10 -10 mMW -1 ) > Fraction D (1.77 × 10 -10 mMW -1 ). Substitution at the a positions causes complex charge distribution which significantly affects the molecular orbitals of the Pc ring.…”