Synthesis and femtosecond third order nonlinear optical properties of push-pull trans- A 2 B-corroles

Yadav, Pinky; Anand, Thangaraj; Moram, Sree Satya Bharati; Bhattacharya, S.; Sankar, Muniappan; Soma, Venugopal Rao

doi:10.1016/j.dyepig.2017.04.041

Cited by 28 publications

(19 citation statements)

References 42 publications

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“…The input peak intensities used were in the range of 1.3–6.2 × 10 11 W/cm 2 . The data was fitted using standard formulas − and the details are provided in the Supporting Information (see page S10 of the Supporting Information for further details).…”

Section: Resultsmentioning

confidence: 99%

“…In the open aperture Z -scan configuration the nonlinear absorption (α 2 ) of the sample is measured while closed aperture Z -scan data provide the sign and magnitude of the nonlinear refractive index ( n 2 ). The Z -scan experiments were performed using (1) Ti:sapphire laser pulses from an oscillator (Chameleon, M/s Coherent) with input pulses of duration ∼150 fs, 80 MHz repetition rate and tunable in the 680–1080 nm spectral region − and (2) Ti:sapphire laser pulses from an amplifier (Libra, M/s Coherent) with input pulses of duration ∼70 fs, repetition rate of 1 kHz and in the 600–800 nm spectral regime. An input beam diameter of ∼2 mm combined with a plano-convex lens of focal length 100 mm for experiment 1 and 150 mm for experiment 2 was used to focus the beam onto the sample.…”

Section: Methodsmentioning

confidence: 99%

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Synthesis, Optical, Electrochemical, DFT Studies, NLO Properties, and Ultrafast Excited State Dynamics of Carbazole-Induced Phthalocyanine Derivatives

et al. 2019

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In this paper, we present results from the detailed investigations on the synthesis, optical, emission, electrochemical, and ultrafast nonlinear optical (NLO) properties along with the excited state dynamics of zinc(II) 2,10,16,24-tetrakis(9-phenyl-9H-carbazol-2-yl)phthalocyanine (CBZPC1) and zinc(II) 2,10,16,24-tetrakis(4-(9H-carbazol-9-yl)phenyl)phthalocyanine (CBZPC2). Due to the presence of carbazole moieties, the Soret band was found to be broadened. The emission studies performed using different solvents revealed the fluorescence yields in the range of 0.10–0.27 and the time-resolved fluorescence data revealed radiative lifetimes of, typically, a few nanoseconds. Femtosecond transient absorption measurements indicated the formation of triplet states within the first nanosecond of photoexcitation. From the cyclic voltametric studies, the oxidation and reduction processes were found to be ring centered. Spectral changes in the UV–visible absorption were recorded by means of spectro-electrochemical analysis at an applied potential. The DFT and TD-DFT analysis was employed using B3LYP hybrid functional theory and 6-31G(d,p) basis set in the Gaussian 09 package. The NLO properties of CBZPC1 and CBZPC2 were investigated using the Z-scan technique and femtosecond (fs) pulses with kHz and MHz repetition rates. Closed and open aperture Z-scan data were recorded at three different wavelengths of 600, 700, and 800 nm, and the NLO coefficients were extracted from both types of data. Two-photon absorption (TPA) was the dominant mechanism observed in the open aperture Z-scan data. The real and imaginary parts of the χ(3) along with the two-photon absorption cross sections were evaluated. Our NLO data and large 2PA coefficients and cross sections obtained indicate the potential of these compounds for applications in optical limiting and optical switching applications.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Synthesis, Optical, Electrochemical, DFT Studies, NLO Properties, and Ultrafast Excited State Dynamics of Carbazole-Induced Phthalocyanine Derivatives

et al. 2019

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“…47 P. Yadav et al synthesized trans-A 2 B corroles with β value in the range of 0.65 to 6.80 × 10 −8 cm W −1 and n 2 extended from (−) 0.35 to (−) 2.84 × 10 −11 cm 2 W −1 ( parameters: 800 nm, 150 fs and 80 MHz). 69 Senge et al reported that β is in the range of 0.5 to 5.3 × 10 −8 cm W −1 ( parameters: 532 nm, 6 ns and 10 Hz) by utilizing 5,15-A 2 B 2 substituted porphyrins. 70 Pengxia Liang and co-authors utilised meso-extended donor-acceptor porphyrins to give β in the range of 5.8 × 10 −11 m W −1 , while n 2 was found to be (−) 3.8 × 10 −19 m 2 W −1 ( parameters: 532 nm, 20 ps).…”

Section: Dalton Transactions Papermentioning

confidence: 99%

Synthesis and the spectral, electrochemical, and nonlinear optical properties of β-dicyanovinyl-appended ‘push–pull’ porphyrins

et al. 2022

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“…The organic molecules which contain a couple, donor (D)-acceptor (A) (or "push-pull" system), connected to a system which contributes to the delocalization of the π-electrons make the classic structures with optical response due to large hyperpolarizabilities that arise from a combination of strong electron-donating groups (e.g., ▬NR 2 , ▬OR) and strong electronwithdrawing groups (e.g., ▬NO 2 , ▬CN), positioned at the opposite ends of a conjugated system (see Figure 2) [16,23,31,32]. Therefore, the synthesis of the classic structures occupies a central place even in the current research.…”

Section: Push-pull Derivatives As Nlo Chromophoresmentioning

confidence: 99%

Synthesis and Nonlinear Studies on Selected Organic Compounds in Nanostructured Thin Films

Cinteză¹,

Marinescu²

2018

Advanced Surface Engineering Research

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Organic compounds based on ferrocene, pyrazolone, and octahydroacridine exhibit high interest due to their unusual structure, with potential practical applications due to their special optical properties. Nonlinear optical (NLO) properties of some new synthesized derivatives are evaluated in relationship with the chemical structure by using DFT molecular modeling. In condensed state, ferrocene and other organic molecules were found in a staggered arrangement (D5d) as a nonpolar molecule, but the eclipsed (D5h) and twisted (D5) forms exhibit SHG capabilities. The molecular polarizability (α), first-order hyperpolarizabilities (β tot), dipole (μ tot), and quadrupole (Q) moments were computed. The NLO efficiency was assessed by the relationship between high (β tot)a n dl o wH O M O-L U M O energy gap. The nonlinear optical properties of some new synthesized compounds were evaluated in thin films with nanometric morphology obtained using various methods: Langmuir-Blodgett (LB) thin films, sol-gel deposition, and layer-by-layer deposition.

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Synthesis and femtosecond third order nonlinear optical properties of push-pull trans- A 2 B-corroles

Cited by 28 publications

References 42 publications

Synthesis, Optical, Electrochemical, DFT Studies, NLO Properties, and Ultrafast Excited State Dynamics of Carbazole-Induced Phthalocyanine Derivatives

Synthesis, Optical, Electrochemical, DFT Studies, NLO Properties, and Ultrafast Excited State Dynamics of Carbazole-Induced Phthalocyanine Derivatives

Synthesis and the spectral, electrochemical, and nonlinear optical properties of β-dicyanovinyl-appended ‘push–pull’ porphyrins

Synthesis and Nonlinear Studies on Selected Organic Compounds in Nanostructured Thin Films

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