Nonlinear optical behavior of n-tuple decker phthalocyanines at the nanosecond regime: investigation of change in mechanisms

Abstract

Rare-earth n-tuple decker phthalocyanine complexes exhibit superior optical limiting properties than the neutral double-decker derivatives, with the normalized transmittance reduced to about 80%.

Rare-earth based tetrapyrrolic sandwiches: chemistry, materials and applications

“…The third-order NLO properties of multi-decker sandwiches with more than a three layered structure were also examined by using Z-scan technique. 48,209,[471][472][473] Along with expanding the p-p interaction system in the order of triple-, quadruple-, quintuple-, and sextuple-deckers, as expected, the NLO responses are gradually improved due to the extended oscillating space. Remarkable w (3) I and g R values of 4910 Â 10 À12 and 12 700 Â 10 À30 esu were recorded for a sextuple-decker Nd 3 Cd 2 [(tBuPhO) 4 Pc] 6 in the Z-scan test (10 ns, 532 nm, 3.0 Â 10 À4 M in CH 2 Cl 2 ), 48 suggesting the great potential for application.…”

Two-Dimensional Metal-Polyphthalocyanine Conjugated Porous Frameworks as Promising Optical Limiting Materials

“…The optical limiting threshold (50% decrease of the linear transmittance) for NiPc-CPF is 0.49 J/cm 2 . This value is less than some multinuclear phthalocyanine chelates (0.11–0.9 J/cm 2 ), − but surpassed many reported 2D optical limiting materials such as Sa-TAPA covalent organic frameworks, graphene, and transition-metal dichalcogenide nanolayers with a limiting threshold of about 1.2–17 J/cm , (Table S2). The coupling of localized d-electrons in metal and delocalized 2D π-conjugated structure of NiPc-CPF is the cause of its excellent nonlinear optical performance.…”

Recent advances in phthalocyanines for chemical sensor, non-linear optics (NLO) and energy storage applications

“…Pcs have also been modified using rare earth metals such as dysprosium [137], neodymiym [138] and ytterbium [139] for NLO. A 2017 study described the synthesis of polymeric carboxyl MPcs using rare earth metals, lanthanum (LaPPc-COOH), holmium (HoPPc-COOH) and ytterbium (YbPPc-COOH) as the central atoms [140].…”