Reverse saturation absorption spectra and optical limiting properties of chlorinated tetrasubstituted phthalocyanines containing different metals

Nonlinear optical properties of natural laccaic acid dye studied using Z-scan technique

“…It can be seen that the nonlinear coefficient is concentration dependent. The second-order hyperpolarizability given by the relation c = I m (v) (3) / f 4 C s N A [33] where f = (n 2 + 2)/3 is the Lorentz local field factor, C s is the concentration and N A is Avogadro number was also used to quantify the nonlinear absorption. The c values are reported in Table 2.…”

Photophysical and theoretical studies of peripherally halogenated octaphenoxyphthalocyanines

“…[18][19][20][21] Recently, we found that the bulky substituents of 2,3,9,10,16,17,23,24octakis(2,6-di-iso-propylphenoxy) phthalocyaninato zinc(II) (Pc1-Zn) effectively prohibited self-association of the macrocycle even within solid thin films 22 and resulted in the formation of unique nanoporous cubic crystals. 25 Moreover, presence of halogen atoms lowers both the fluorescence quantum yield and the fluorescence lifetime, enhances the triplet quantum yield and decreases the triplet lifetime. Similarly, also peripheral substituents may substantially influence photophysical properties.…”

“…It should be also noted that the halogenated phthalocyanines showed promising photoelectric properties due to the heavy atom effect (i.e. 25 25 Moreover, presence of halogen atoms lowers both the fluorescence quantum yield and the fluorescence lifetime, enhances the triplet quantum yield and decreases the triplet lifetime.…”

Metal-free phthalocyanine aggregation and binding with amines: Specific and general solvent effects on absorption and fluorescence properties

“…Pc materials are used as photosensitizers in photodynamic therapy of Tumor (PDT) [6][7][8][9][10][11][12], electron donor/acceptors in dye-sensitized solar cells (DSSC) [13][14][15][16], nonlinear optical materials for preventing laser weapons [17][18][19], catalysts in industry [20][21][22], liquid crystals in display devices [23][24][25], and photoconductors in copy machines and laser printers [6,26,27].…”