Effect of cerium on the growth and crystalline quality of KDP crystals

Jayaprakasan, M.; Rajesh, N.P.; Kannan, V.; Ganesh, R. Bairava; Bhagavannarayana, G.; Ramasamy, P.

doi:10.1016/j.matlet.2006.09.026

Cited by 15 publications

(11 citation statements)

References 7 publications

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“…The addition of the dopants in the optimum HRXRD analysis Crystalline perfection has a strong influence on the efficiency of the physical properties of crystals [30]. Recently a lot of works reported that the changes in the crystalline perfection of KDP and ADP crystals by the effect of additives can analyzed by the high resolution XRD characterization technique [7,31,32]. A multicrystal X-ray diffractometer designed and developed at National Physical Laboratory, New Delhi [33] has been used to study the crystalline perfection of the single crystal(s).…”

Section: Resultsmentioning

confidence: 99%

Enhancement of stability of growth, structural and NLO properties of KDP crystals due to additive along with seed rotation

Dhanaraj¹,

Rajesh²,

Ramasamy³

et al. 2008

Cryst. Res. Technol.

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Potassium Acetate (CH 3 COOK) and Potassium Citrate (K 3 C 6 H 5 O 7 ) as new additives were added into the potassium dihydrogen phosphate (KDP) solutions in different molar ratios. The metastable zone width and induction period with and without these additives were determined and compared. Dielectric measurements on pure and doped KDP crystals at various temperatures ranging from 313 to 423 K were carried out by the conventional parallel plate capacitor method which results low dielectric constant value dielectrics in doped crystals. The high resolution XRD studies show that CH 3 COOK doped KDP crystal and K 3 C 6 H 5 O 7 doped KDP crystal do not contain any internal structural grain boundaries and indicates that the crystalline perfection is very good. Moreover, the addition of these potassium additives improves the quality of the crystal and yields highly transparent crystals with well defined features. The effect of additives on the growth, nucleation kinetics, structural, NLO and optical properties has been investigated.

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Section: Resultsmentioning

confidence: 99%

Enhancement of stability of growth, structural and NLO properties of KDP crystals due to additive along with seed rotation

Dhanaraj¹,

Rajesh²,

Ramasamy³

et al. 2008

Cryst. Res. Technol.

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“…The growth of the crystal can be either enhanced, suppressed or stop completely by adding the impurities. In the modern period the growth process and properties of crystals can be varied by the effect of additives [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Praseodymium doped KDP Single Crystal Grown by Different Techniques and its Optical, SHG and Dielectric Studies : A New NLO Crystal

2018

IJCTR

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: Praseodymium doped Potassium dihydrogen Orthophosphate (KDP) single crystals were grown using different techniques -SR method, Seed Rotation and Slow Evaporation. The single crystal grown by SR method on unidirectional {101} pyramidal face was around 150 mm in length and 16 mm in diameter. Kurtz powder technique is used to determine the SHG efficiency. It is observed that relative SHG conversion efficiency of crystal grown by SR method is greater compared to other techniques. Optical transmission spectra was recorded in the wavelength region 200 to 1100nm for the grown crystals using Perkin-Elmer Lambda 35 UV-Vis spectrophotometer. It is found that percentage transmission of crystal grown by SR method is more as compared to other techniques. The electronic band transitions was studied from the plot of photon energy (hν) versus (αhν) 2 and the value of band gap energy (E g ) has been calculated. The dielectric constant, dielectric loss and a conductivity of the grown crystals were studied as a function of frequency and the results are discussed. The addition of Praseodymium improves the quality and transparency of crystals, which shows the suitability of the grown NLO material for optical applications.

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“…The use of special additives is an effective way to accelerate the growth rate. The beneficial effect of additives on the growth process and properties of crystals has been applied in recent years [6][7][8]. Several researchers have carried out a lot of studies in pure and doped KDP crystals [9,10].…”

Section: Introductionmentioning

confidence: 99%

Investigation of SR method grown <101> directed Praseodymium doped KDP crystal and its Single crystal Xrd, LDT, thermal, mechanical, Etching, FTIR, SEM & TEM analysis

Roopa¹,

Kumari²

2017

IOSR JAP

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Effect of cerium on the growth and crystalline quality of KDP crystals

Cited by 15 publications

References 7 publications

Enhancement of stability of growth, structural and NLO properties of KDP crystals due to additive along with seed rotation

Enhancement of stability of growth, structural and NLO properties of KDP crystals due to additive along with seed rotation

Praseodymium doped KDP Single Crystal Grown by Different Techniques and its Optical, SHG and Dielectric Studies : A New NLO Crystal

Investigation of SR method grown <101> directed Praseodymium doped KDP crystal and its Single crystal Xrd, LDT, thermal, mechanical, Etching, FTIR, SEM & TEM analysis

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