High pressure electrical resistivity study on nonlinear bis thiourea cadmium chloride (BTCC) single crystal

Ariponnammal, S.; Vennila, R. Selva; Srinivasan, Radhika; Arumugam, S.

doi:10.1002/crat.200410453

Cited by 7 publications

(1 citation statement)

References 6 publications

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“…Nonlinear optics gives much importance in photonics and optoelectronics technologies. New nonlinear optical frequency conversion materials have a significant impact on laser technology, optical communication and optical data storage [8][9][10].Recent interest in quantum electronics has focused on finding new materials for efficient second harmonic electro optic modulation [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Hippuric Acid on the Growth, Structural and Optical Properties of Non Linear Optical Crystals

Kumaresh¹,

Kumar²,

Sankar³

et al. 2013

IJSEA

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Non-linear optical potassium dihydrogen phosphate (KDP) and ammonium dihydrogen phosphate (ADP) single crystals with 1 mol% of hippuric acid dopant were grown from aqueous solution by employing slow evaporation technique. With appropriate dopants, the KDP and ADP crystals exhibit several desirable properties. Crystallinity of the grown crystals was studied by powder XRD analysis. The bonding structure and molecular associations were analyzed by FTIR spectroscopy. It also confirms the functional groups present in the grown crystals. UV-Vis-NIR spectral analysis was carried out to study the optical characteristics of the crystals which reveal that the cutoff wavelength for both hippuric acid doped KDP and ADP crystals is around 300 nm. Second harmonic generation (SHG) test adopting the Kurtz Perry technique revealed that the SHG efficiency has increased due to doping when compared with pure KDP and ADP crystals.

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Section: Introductionmentioning

confidence: 99%

Effect of Hippuric Acid on the Growth, Structural and Optical Properties of Non Linear Optical Crystals

Kumaresh¹,

Kumar²,

Sankar³

et al. 2013

IJSEA

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Phase Evolution of CuS System in Ethylene Glycol Solution: the Effect of Anion and PVP on the Transformation of Thiourea

et al. 2013

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The transformation mechanisms of thiourea in ethylene glycol solution was systematically investigated in this report, which shows the transformation process is influenced by the anion (NO 3− , Cl − , Br − ) and polyvinylpyrrolidone (PVP). Thiourea (tu) isomerizes into ammonium thiocyanate when NO 3− is present, regardless of the existence of PVP. For Cl − , thiourea coordinates with copper anion to form [Cu(tu)]Cl•1/2H 2 O complex whether PVP is present. When it comes to Br − , thiourea hydrolyzes in the cooperation of PVP or coordinates with copper anion to form [Cu(tu)Br]•1/2H 2 O complex without PVP. The different transformation routes will lead to different phase evolution of the Cu-S system. This work may provide a new understanding of the transformation of thiourea in ethylene glycol solution. The optical properties of the as-prepared copper sulfides exhibit significant stoichiometrydependent features which may have potential applications in semiconductor photovoltaic devices.

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Influence of lithium ions on the NLO properties of KDP single crystals

Shirsat¹,

Hussaini

Dhumane

et al. 2008

Cryst. Res. Technol.

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Potassium Dihydrogen Phosphate (KDP) and its isomorphous deuterated form are popular due to their applications in frequency converters and electro-optic modulation. Different attempts have been made to dope KDP with inorganic additives, organic materials and amino acids. Since many of the metal ions possess more electro negativity which increases the non centrosymmetry, it is of interest to dope them in KDP. The influence of lithium ion (Li + ) on NLO properties of KDP crystal has been studied in the present investigation. Single crystal of Lithium ion doped Potassium Dihydrogen Phosphate (KDP) was grown by slow evaporation technique. The enhancement in SHG efficiency after addition of ion Lithium (Li + ) was observed by Kurtz Powder SHG test. It was found that the SHG efficiency of KDP after addition of Lithium ion is 1.33 times more than pure KDP. The crystal structure and cell parameters of grown crystal were determined by X-ray diffraction. The Energy Dispersive X-ray analysis (EDAX) gives the chemical composition of grown crystal. The functional groups were identified by FT-IR spectral analysis. The presence of Lithium in the material of grown crystal was detected by Atomic absorption spectroscopy (AAS). The optical absorption and transmission studies were done by UV-Visible spectral analysis. The grown crystal was subjected to thermogravimetric analysis (TGA) and Differential Scanning Calorimetry (DSC).

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High pressure electrical resistivity study on nonlinear bis thiourea cadmium chloride (BTCC) single crystal

Cited by 7 publications

References 6 publications

Effect of Hippuric Acid on the Growth, Structural and Optical Properties of Non Linear Optical Crystals

Effect of Hippuric Acid on the Growth, Structural and Optical Properties of Non Linear Optical Crystals

Phase Evolution of CuS System in Ethylene Glycol Solution: the Effect of Anion and PVP on the Transformation of Thiourea

Influence of lithium ions on the NLO properties of KDP single crystals

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