Growth, spectral and optical characterization of a novel nonlinear optical organic material: d-Alanine dl-Mandelic acid single crystal

Jayaprakash, P.; Mohamed, M Peer; Caroline, M. Lydia

doi:10.1016/j.molstruc.2016.12.026

Cited by 98 publications

(18 citation statements)

References 31 publications

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“…where hυ is the incident photon energy, α is the absorption coefficient, K is a constant, E g is the optical bandgap in electron volts (eV), and n is an exponent that can take different values depending on the nature of the electronic transition, i.e., n = 2 for direct transition, and n = 1/2 for indirect transition, as shown in Figure 3b,c [59][60][61][62]. The Urbach energy designates the width of the band tails of the localized states.…”

Section: Uv-visible Spectroscopy and Bandgapmentioning

confidence: 99%

Green Synthesized of Ag/Ag2O Nanoparticles Using Aqueous Leaves Extracts of Phoenix dactylifera L. and Their Azo Dye Photodegradation

et al. 2021

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In this study, silver/silver oxide nanoparticles (Ag/Ag2O NPs) were successfully biosynthesized using Phoenix dactylifera L. aqueous leaves extract. The effect of different plant extract/precursor contractions (volume ratio, v/v%) on Ag/Ag2O NP formation, their optical properties, and photocatalytic activity towards azo dye degradation, i.e., Congo red (CR) and methylene blue (MB), were investigated. X-ray diffraction confirmed the crystalline nature of Ag/Ag2O NPs with a crystallite size range from 28 to 39 nm. Scanning electron microscope images showed that the Ag/Ag2O NPs have an oval and spherical shape. UV–vis spectroscopy showed that Ag/Ag2O NPs have a direct bandgap of 2.07–2.86 eV and an indirect bandgap of 1.60–1.76 eV. Fourier transform infrared analysis suggests that the synthesized Ag/Ag2O NPs might be stabilized through the interactions of -OH and C=O groups in the carbohydrates, flavonoids, tannins, and phenolic acids present in Phoenix dactylifera L. Interestingly, the prepared Ag/Ag2O NPs showed high catalytic degradation activity for CR dye. The photocatalytic degradation of the azo dye was monitored spectrophotometrically in a wavelength range of 250–900 nm, and a high decolorization efficiency (84.50%) was obtained after 50 min of reaction. As a result, the use of Phoenix dactylifera L. aqueous leaves extract offers a cost-effective and eco-friendly method.

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Section: Uv-visible Spectroscopy and Bandgapmentioning

confidence: 99%

Green Synthesized of Ag/Ag2O Nanoparticles Using Aqueous Leaves Extracts of Phoenix dactylifera L. and Their Azo Dye Photodegradation

et al. 2021

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“…From Fig. 6a, it is evident that the optical conductivity (r opt ) gradually increases with incident photon energy (ht) possessing higher order of magnitude (10 9 (X m) -1 ), thereby confirming the high photo-tunable behavior of the material [32]. From Figs.…”

Section: Determination Of Optical Parametersmentioning

confidence: 60%

“…The dependence of the absorption coefficient (a) along with the larger photon energy (ht) supports to analyze the band structure and the types of the electrons transition at the molecular level. The valuable optical parameters were also evaluated utilizing the following theoretical formulae [32]. The linear absorption coefficient 'a' associated with the extinction coefficient 'k' is given by…”

Section: Determination Of Optical Parametersmentioning

confidence: 99%

“…The lower refractive index with higher optical transparency of B4ATCZ crystal in the entire UV-Vis region erects it as a potential material for the optical components like resonators, reflectors, Fig. 5 a The plot of reflectance (R) vs. photon energy (ht), b variation of extinction coefficient (K) with 'ht', c variation of 'R' and 'K' with linear absorption coefficient 'a' and, d the linear refractive index (l) with the wavelength of B4ATCZ crystal signal filters, and anti-reflective coating in solar thermal devices [32][33][34].…”

Section: Determination Of Optical Parametersmentioning

confidence: 99%

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Investigation on the optical, spectral, electrical, mechanical, and laser damage threshold studies of bis (4-acetylanilinium) tetrachloridozincate (B4ATCZ) crystal

Suriya

Manimaran

Boaz

et al. 2021

J Mater Sci: Mater Electron

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An efficient semi-organic nonlinear optical bis (4-acetylanilinium) tetrachloridozincate [(C8H10NO)2 ZnCl4] (B4ATCZ) single crystal was synthesized and successfully grown by the slow evaporation method. The single-crystal X-ray diffraction data confirm that B4ATCZ crystallized into an orthorhombic crystal system (Cmca). The UV–Vis–NIR transmittance spectrum was taken to assess the optical transmission, cut-off wavelength, and bandgap energy. The TG–DSC investigation ensures that the B4ATCZ is stable up to 235 °C. The mechanical behavior of the B4ATCZ compound was determined by Vickers Microhardness analysis. The surface laser-induced damage threshold value of the grown B4ATCZ crystal was endowed to be 19.78 GW/cm2 on testing with 1064 nm Nd: YAG laser radiation. The positive photoconductive properties and charge transport mechanism of B4ATCZ crystal were analyzed through photoconductivity and dielectric studies. The electron excitation and lifetime measurements of the molecules in the B4ATCZ crystal were studied by fluorescence spectral analysis. The HOMO–LUMO analysis evidently interprets the occurrence of N–H⋯O and N–H⋯Cl intermolecular hydrogen bonds influencing the charge transfer in the system. The electrostatic potential surface reveals the possible sites for hydrogen bonding electrophilic and nucleophilic interactions. Third-order nonlinear optical activity evaluated by the Z-scan measurements indicates the self-focusing and reverse saturable absorption in the crystal. The aforesaid results affirm that the metal-organic B4ATCZ is a potential material for optoelectronic and nonlinear optical device applications.

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“…Stiffness constant (or) elastic stiffness constant explains about the bonding nature of atoms [38]. It can be calculated using…”

Section: Elastic Stiffness Constantmentioning

confidence: 99%

Second and third order nonlinear optical, mechanical, surface characteristics of bis(thiourea) manganese chloride (BTMC) grown by slow cooling technique used for frequency conversion applications

Kubendiran¹,

Kumar²,

Moses³

et al. 2019

J Mater Sci: Mater Electron

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A semiorganic nonlinear optical (NLO) single crystal of bis(thiourea) manganese chloride (BTMC) is grown successfully by slow cooling technique using water as solvent at temperature 45 °C. The optically good quality crystal of BTMC was grown with dimension up to 8 × 8 × 2 mm 3 in a period of 2-3 weeks. The grown crystal crystallizes in orthorhombic crystal system which was confirmed by single crystal X-ray diffraction analysis. The various functional groups of BTMC were identified through FT-IR spectroscopic analysis. The lower cutoff wavelength of 280 nm was revealed from optical transmittance spectrum of UV. The mechanical behavior of BTMC crystal was analyzed by Vicker's microhardness study and also the various mechanical parameters were determined. Vickers micro hardness test revealed, the titular crystal belongs to harder material category. The SHG efficiency is estimated from Kurtz-Perry powder method and it found to be 0.33 times than the reference material. The dielectric behavior, photo conducting nature and surface properties have been analyzed for grown BTMC crystal. The presence of synthesized elements was confirmed by EDAX study. The third order nonlinear optical susceptibility (3) of the material is measured using Z-scan technique and it is found to be 5.1202 × 10 −14 esu.

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Growth, spectral and optical characterization of a novel nonlinear optical organic material: d-Alanine dl-Mandelic acid single crystal

Cited by 98 publications

References 31 publications

Green Synthesized of Ag/Ag2O Nanoparticles Using Aqueous Leaves Extracts of Phoenix dactylifera L. and Their Azo Dye Photodegradation

Green Synthesized of Ag/Ag2O Nanoparticles Using Aqueous Leaves Extracts of Phoenix dactylifera L. and Their Azo Dye Photodegradation

Investigation on the optical, spectral, electrical, mechanical, and laser damage threshold studies of bis (4-acetylanilinium) tetrachloridozincate (B4ATCZ) crystal

Second and third order nonlinear optical, mechanical, surface characteristics of bis(thiourea) manganese chloride (BTMC) grown by slow cooling technique used for frequency conversion applications

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