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In this review article, we have described various strategies to increase the efficiency of two-photon absorption process of porphyrin related molecular systems. While 18-π electronic aromatic porphyrin monomers exhibit relatively small two-photon absorption cross-section values, the perturbation of electronic nature of porphyrins by substituting electron donating–accepting moieties, π-conjugated peripheral...
The laser-induced fluorescence spectra of leaves of Zea mays L. plants treated with different concentrations (0.01, 0.10 and 1.00mM) of cadmium were recorded in region 650–800nm using 488nm line of Argon Ion laser as excitation source and PMT as detector. Besides this, blue-green fluorescence and Chl fluorescence were also measured using third harmonic (355nm) of Nd:YAG laser as excitation source...
Even though heterogeneous photocatalysis appeared in many forms, photodegradation of organic pollutants has recently been the most widely investigated. By far, titania has played a much larger role in this scenario compared to other semiconductor photocatalysts due to its cost effectiveness, inert nature and photostability. Extensive literature analysis has shown many possibilities of improving the...
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