Optical, dielectric and surface studies on solution grown benzimidazole single crystals

Vijayan, N.; Bhagavannarayana, G.; Budakoti, G. C.; Kumar, Binay; Upadhyaya, V.; Das, S. Jerome

doi:10.1016/j.matlet.2007.08.023

Cited by 37 publications

(8 citation statements)

References 8 publications

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“…XRD patterns reveal that BMZ films prepared at different solution temperatures contain only a single peak corresponding to (110) plane. 8,9 This is because the molecules tend to arrange only in (110) plane and confirms the single crystalline nature of the films. The crystallite size of the BMZ films was calculated using the well known Debye-Scherrer's formula as…”

Section: Resultssupporting

confidence: 63%

“…In particular, several reports are available on second harmonic generation (SHG) effects of this material and its SHG efficiency is 4.5 times better than that of the standard KDP material. 8,9 Although the title compound and its derivatives were investigated for a variety of applications, only a very few reports are * Author for correspondence (rampap2k@yahoo.co.in) available on the third-order NLO properties. Those reports mainly concern on structure-property relation and studied in solution form using high power pulsed lasers.…”

Section: Introductionmentioning

confidence: 99%

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Low power optical limiting studies on nanocrystalline benzimidazole thin films prepared by modified liquid phase growth technique

et al. 2015

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In the present work, benzimidazole (BMZ), a well known nonlinear optical material, thin films were deposited using the modified liquid phase growth technique at different solution temperatures. The prepared samples were subjected to spectral, structural and surface analyses. Linear optical properties and third-order optical nonlinearity of the deposited BMZ thin films were analysed using UV-visible-NIR spectrum and Z-scan technique, respectively. The experimental results show that the BMZ films exhibit reverse saturable absorption and positive nonlinearity at 650 nm CW laser of power 5 mW. The measured third-order nonlinear susceptibility of the films is about 10 −10 esu. Optical limiting studies were performed using the same laser source and the potentiality of the BMZ films is reported.

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Section: Resultssupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Low power optical limiting studies on nanocrystalline benzimidazole thin films prepared by modified liquid phase growth technique

et al. 2015

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“…The presence of defects can also be examined by using this technique. 16,17 In this case, SEST-grown MPHB single crystal was subjected to light from a xenon lamp to study its photon emission wavelength for a particular excitation energy. The sample was excited with a photon energy of 3.94 eV, and the corresponding emission spectrum recorded.…”

Section: Photoluminescence Of Mphb Single Crystalmentioning

confidence: 99%

Elemental, Optical, and Time-Domain Terahertz Spectroscopy Studies on Methyl p-Hydroxybenzoate Single Crystal for THz Applications

Nayak

Kumari

Vashishtha

et al. 2021

J. Electron. Mater.

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Organic nonlinear-optical single-crystal methyl p-hydroxybenzoate (MPHB) is one of the potential candidates for use in terahertz applications. The focus of this work is to study the response of MPHB single crystal in the terahertz region of the electromagnetic spectrum using time-domain terahertz spectroscopy (THz-TDS). Single-crystal MPHB was grown by the conventional slow evaporation solution growth technique (SEST). The structural confirmation of the title compound was assessed by powder x-ray diffraction (PXRD) analysis. The optical bandgap of ingot crystal was calculated using Tauc's equation based on ultraviolet-visible (UV-Vis) spectroscopy. The photoluminescence emission spectrum revealed a major emission in the blue region corresponding to 457 nm. The dominant color emission for the title compound was assessed by converting the major emission peak to a Commission Internationale de l'Éclairage (CIE) chromaticity diagram, which further confirmed the emission of blue light from the crystal. The dynamics of the photon emission and its decay time for the title compound were studied by time-resolved photoluminescence (TRPL). THz-TDS was performed in the range from 0.2 THz to 3.0 THz on the title single crystal to observe its optical absorption behavior in the THz energy range. The variation of the absorption coefficient at terahertz frequencies is also presented herein. KeywordsCrystal growth • optical bandgap • photoluminescence • time-resolved photoluminescence • time-domain terahertz spectroscopy * N. Vijayan

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“…24 In the low frequency range, all types of polarisation mechanisms (electronic, ionic, dipolar and space charge) may be active. [25][26][27] As the frequency increases, a point will be reached where the space charge cannot be sustained and comply with the external eld. 28 Space charge polarisation is responsible for a high value of the dielectric constant at lower frequencies, which indicates a lower number of defects in the crystal.…”

Section: Dielectric Behaviourmentioning

confidence: 99%

Crystallographic, optical and dielectric properties of gel grown praseodymium malonate single crystals

Ahmad

Kotru

2015

RSC Adv.

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Optical, dielectric and surface studies on solution grown benzimidazole single crystals

Cited by 37 publications

References 8 publications

Low power optical limiting studies on nanocrystalline benzimidazole thin films prepared by modified liquid phase growth technique

Low power optical limiting studies on nanocrystalline benzimidazole thin films prepared by modified liquid phase growth technique

Elemental, Optical, and Time-Domain Terahertz Spectroscopy Studies on Methyl p-Hydroxybenzoate Single Crystal for THz Applications

Crystallographic, optical and dielectric properties of gel grown praseodymium malonate single crystals

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