Photoconductivity and dielectric studies of potassium pentaborate crystal (KB5)

Joseph, V.; Gunasekaran, S.; Santhanam, V.

doi:10.1007/bf02711180

Cited by 27 publications

(10 citation statements)

References 6 publications

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“…At high frequencies the electronic, ionic, dipolar, and space charge polarizations are predominant. Of all these polarizations only space charge is active at lower frequencies and there is loss of significance of other three polarizations which may lead to low value of dielectric constant at higher frequencies [28]. It is clear from Fig.…”

Section: Dielectric Studiesmentioning

confidence: 92%

Influence of Zinc and Ammonium Compounds on the Growth and Characterisation of L Alanine NLO Crystals

Sagunthala¹,

Veeravazhuthi

Yasotha³

et al. 2018

Acta Phys. Pol. A

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Single crystals of zinc sulphate monohydrate L alanine and ammonium sulphate L alanine had been grown by slow evaporation technique. The crystalline nature and unit cell parameters of the grown crystals were determined using powder and single crystal X-ray diffraction. The grown crystals retained the orthorhombic crystal system. UV-vis transmittance and second harmonic generation studies were performed to analyze the optical behaviour of the crystals. The Fourier transform infrared spectra were recorded in the region 4000-400 cm −1 to identify the presence of functional groups. Thermogravimetric analysis helped to determine the percentage of decomposition of the sample at different temperatures as well as the thermal stability of the compound. Mechanical and electrical properties of grown crystals were ascertained through the Vickers micro hardness and dielectric studies.

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Section: Dielectric Studiesmentioning

confidence: 92%

Influence of Zinc and Ammonium Compounds on the Growth and Characterisation of L Alanine NLO Crystals

Sagunthala¹,

Veeravazhuthi

Yasotha³

et al. 2018

Acta Phys. Pol. A

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“…The very strong peak at 1024 cm −1 is attributed to B-O terminal symmetric stretching vibration. The B-O terminal asymmetric stretching vibration is observed at 1432 cm −1 [10].…”

Section: Ft-ir Studiesmentioning

confidence: 99%

Growth, structural, optical, thermal and mechanical properties of ammonium pentaborate single crystal

Balakrishnan

Bhagavannarayana

Ramamurthi

2008

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Nonlinear optical single crystals of ammonium pentaborate (APB) were grown by the slow cooling method from aqueous solution. Grown crystal was characterized by powder X-ray diffraction (PXRD) and FT-IR spectral analysis. Perfection of the grown crystal was evaluated by high-resolution X-ray diffractometry (HRXRD). The effect of nylon threading on the perfection of the grown bigger crystal was also studied by HRXRD. The range and percentage of optical transmission was ascertained by recording UV-vis-NIR spectrum. Thermal properties were investigated by TG-DTA and DSC analyses. Its mechanical hardness was estimated by Vickers microhardness tester.

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“…The lower level has a high capture cross-section for electrons from the conduction band and holes from the valance band. As a result in the presence of a radiation recombination of electrons and holes take place and hence the conductivity decreases [13,14].…”

Section: Article In Pressmentioning

confidence: 99%