Novel metallated imidazole phthalocyanines: synthesis, ultrafast excited-state carrier dynamics and multiphoton absorption properties

Abstract

Metal-substituted phthalocyanines are an important class of materials garnering attention due to their structural diversity and excellent optoelectronic properties. Herein, we comprehensively investigate the photophysical properties of newly synthesized one...

Harnessing Coherent Light–Matter Interactions for All-Optical Switching and Logic Gate Applications with Macrocyclic Phthalocyanines

“…This could be probably due to the incident energy of the different lasers (as the incident energies were in order E in(λ=440nm) > E in(λ=532nm) > E in(λ=633 nm) ). From DFT calculations in our previous report, we have found the bandgap of this sample is ∼1.97 eV. Therefore, the 440 nm (2.82 eV) laser will excite easily as compared to 532 nm (2.33 eV) and 633 nm (1.96 eV), while the red 633 nm laser will require more incident energy to excite the bandgap as compared to others.…”

“…The synthesis of FbPc, CuPc, and ZnPc is reported in our previous report. 30 We have performed the nonlinear optical (NLO) spatial selfphase modulation (SSPM) experiment. The experimental details are discussed below:…”

“…The electronic configuration of metal macrocyclic complexes can be tuned by modifying the chemical structure, which will modulate the optical and NLO responses of the devices. Due to their easy synthesis process, high chemical and thermal stability, the derivatives of Pc molecules have numerous applications in solar cells, photodynamic therapy, electronic sensors, photocatalysts, and optoelectronics. − Multiple reports from literature have demonstrated excellent non-linear optical resposnse of phthalocyanine and its derivative molecules using ultrafast Z-scan techniques with good NLO parameters, showing promise towards various optoelectronic and all-optical switching applications. ,− …”

“…The molecular structure of these molecules is shown in Supporting Information Figure S1. In our previous report, 30 we presented extensisve ultrafast NLO charactertization of these novel phthalocyanines using Z-scan technique employing femtosecond laser pulses. In this study, the SSPM measurements of these molecules have been performed in solution form using continuous wave (CW) lasers with excitations at their resonant (440 and 633 nm) as well as nonresonant wavelength (532 nm) regions to understand their NLO responses.…”

Ultrafast Dynamics, Optical Nonlinearities, and Chemical Sensing Application of Free-Standing Porous Silicon-Based Optical Microcavities

“…serves as a probe beam to monitor the excited-state electrons dynamics 32,33. Pump power was kept constant at 200 μW for all of the TAS measurements.…”