Growth, structural, third order nonlinear optical properties, dielectric properties, conductivity mechanisms and spectroscopic characterization of a luminescent material trans-diaqua-bis(pyridine-2-carboxylato)-cobalt(ii) dihydrate for optoelectronic applications

Rajan, Rejeena V.; Gowri, S.; Manopradha, N.; Leenaraj, D.R.; Joy, Lija K.; Sajan, D.

doi:10.1016/j.optlastec.2019.105664

Cited by 5 publications

(6 citation statements)

References 62 publications

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“…In addition, it is seen that the Ni(II) complex with 3 d 8 electronic configuration exhibited higher static μ, β, and γ values than the Zn(II) complex with a fully occupied d ‐orbital. In a recent study, static and frequency‐dependent NLO parameters for the Co(II) complex of pyridine‐2‐carboxylic acid were reported 27 . In this study, the γ(0;0,0,0) parameter for the Co(II) complex was reported as 43.384 × 10 −36 esu, as comparable with the Zn(II) and Ni(II) complexes.…”

Section: Resultssupporting

confidence: 56%

“…In a recent study, static and frequency-dependent NLO parameters for the Co(II) complex of pyridine-2-carboxylic acid were reported. 27 In this study, the γ(0;0,0,0) parameter for the Co(II) complex was reported as 43.384 Â 10 À36 esu, as comparable with the Zn(II) and Ni(II) complexes. In the absence of experimental correspondences to the NLO parameters of the materials under investigation, the previously reported results for p-nitroanilin (pNA) and urea are used for comparison purposes.…”

Section: Nonlinear Optical Propertiesmentioning

confidence: 51%

“…These parameters for a Co(II) complex with similar geometric structure were reported as 55.538 Â 10 À36 and 122.342 Â 10 À36 esu. 27 When it comes to the Ni(II) complex, the electric fieldinduced second harmonic generation γ(À2ω;ω,ω,0) was calculated as 2258.9 Â 10 À36 esu as a promising candidate for SHG materials. The same parameters calculated at 1064 nm were obtained as 33.688 Â 10 À36 and 38.180 Â 10 À36 esu for the Zn(II) complex.…”

Section: Nonlinear Optical Propertiesmentioning

confidence: 99%

“…Some of these studies report that transition metal complexes containing pyridine-2-carboxylic acid derivatives are promising candidates for nonlinear optical materials. To date, coordination complexes containing pyridine-2-carboxylic acid and its derivatives with metal ions such as Mn(II), 26 Co(II), 27,28 Ni(II), 29 Cu(II), 30,31 Zn(II), 31,32 and Cd(II) 33,34 have been synthesized, and the nonlinear optical properties have been investigated in detail by theoretical and experimental methods. However, to the best of our knowledge, there is no study on Zn(II) and Ni(II) complexes containing 4-methoxypyridine-2-carboxylic acid.…”

Section: Introductionmentioning

confidence: 99%

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The static and frequency‐dependent second‐ and third‐order nonlinear optical properties of Zn(II) and Ni(II) complexes of 4‐methoxypyridine‐2‐carboxylic acid: A detailed experimental and theoretical study

Tamer

Dege

Avcı

et al. 2023

Applied Organom Chemis

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Novel Zn(II) and Ni(II) complexes, [Zn(MeOPic)2(H2O)2] and [Ni(MeOPic)2(H2O)2] (MeOHPic = 4‐methoxypyridine‐2‐carboxylic acid [4meOHPic]), have been prepared and characterized by X‐ray diffraction (XRD), Fourier transform infrared (FTIR), and ultraviolet–visible (UV–Vis) techniques. Crystal structure analysis demonstrated that the 4meOHPic ligand is coordinated as a two‐dentate ligand through N and O atoms to central metal ions, and both of the complexes have distorted octahedral coordination geometry. The DFT‐B3LYP/6‐311++G(d,p)/LanL2DZ level was executed to perform DFT calculations for the Zn(II) complex with singlet spin state and the Ni(II) complex with triplet spin state. The UV–Vis electronic absorption spectra and natural bonding orbital (NBO) analyses also demonstrated that ligand–ligand and metal–ligand charge transfer interactions occur in Zn(II) and Ni(II) complexes. However, static and frequency‐dependent first‐order hyperpolarizability (β) parameters were found to be low because of the centrosymmetric crystal structures. As for the second‐order hyperpolarizabilities, the quadratic electro‐optical Kerr effect γ (−ω;ω,0,0) and electric field induced second harmonic generation γ (−2ω;ω,ω,0) parameters were calculated as 13.04 × 10−36 and 2258.9 × 10−36 esu for Ni(II) complex. Accordingly, it was demonstrated that Ni(II) complex is a potential candidate for third‐order nonlinear optical (NLO) materials.

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Section: Resultssupporting

confidence: 56%

Section: Nonlinear Optical Propertiesmentioning

confidence: 51%

Section: Nonlinear Optical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The static and frequency‐dependent second‐ and third‐order nonlinear optical properties of Zn(II) and Ni(II) complexes of 4‐methoxypyridine‐2‐carboxylic acid: A detailed experimental and theoretical study

Tamer

Dege

Avcı

et al. 2023

Applied Organom Chemis

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“…Figure a shows the experimental dependences of –Im Z on Re Z for TADF‐based OLED structures (Cole–Cole plots), measured at the temperature of 300 K and various bias voltages. To describe the ideal Cole–Cole plots in the presence of a single relaxation process, the simple equivalent circuit shown in the inset in Figure a is often used.…”

Section: Resultsmentioning

confidence: 99%

Impedance Characterization of Organic Light‐Emitting Structures with Thermally Activated Delayed Fluorescence

Войцеховский

Nesmelov

Dzyadukh

et al. 2020

Physica Status Solidi (a)

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The organic light‐emitting device (OLED) structures based on layer (2,8‐bis[N,N‐di(4 methoxyphenyl)amino]dibenzothiophene‐S,S‐dioxide) with thermally activated delayed fluorescence (TADF) are created. The properties of TADF‐based structures are studied by measuring the impedance under various conditions (100 Hz–2 MHz and 10–300 K). The features of the capacitance–voltage curves of the studied structures can be explained by the simultaneous injection of holes from the anode and electrons from the cathode. Cole–Cole plots are studied at various voltages and temperatures. It is shown that at forward bias voltages, the impedance is determined by single relaxation process and at low voltages by more than one process. An OLED equivalent circuit consisting of four serial capacitance–resistance (CR) chains (CR–CR–CR–CR) is proposed. Using this circuit allows us to achieve good agreement between the calculated and experimental frequency dependences of the impedance at various voltages. The different elements of the equivalent circuit are associated with different layers in a multilayer OLED structure. The dependences of the CR element values on the bias voltage are found, and the thicknesses of the corresponding layers are determined.

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Optoelectronic, luminescence, and nonlinear properties of a non-centrosymmetric Cd(II)-based complex

Msalmi

Dammak

Elleuch

et al. 2022

Journal of Physics and Chemistry of Solids

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Growth, structural, third order nonlinear optical properties, dielectric properties, conductivity mechanisms and spectroscopic characterization of a luminescent material trans-diaqua-bis(pyridine-2-carboxylato)-cobalt(ii) dihydrate for optoelectronic applications

Cited by 5 publications

References 62 publications

The static and frequency‐dependent second‐ and third‐order nonlinear optical properties of Zn(II) and Ni(II) complexes of 4‐methoxypyridine‐2‐carboxylic acid: A detailed experimental and theoretical study

The static and frequency‐dependent second‐ and third‐order nonlinear optical properties of Zn(II) and Ni(II) complexes of 4‐methoxypyridine‐2‐carboxylic acid: A detailed experimental and theoretical study

Impedance Characterization of Organic Light‐Emitting Structures with Thermally Activated Delayed Fluorescence

Optoelectronic, luminescence, and nonlinear properties of a non-centrosymmetric Cd(II)-based complex

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