Effect of pH value on the growth morphology of KH<sub>2</sub>PO<sub>4</sub> crystal grown in defined crystallographic direction

Liu, Fafu; Zhang, Lisong; Yu, Gang

doi:10.1002/crat.201400304

Cited by 15 publications

(5 citation statements)

References 22 publications

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“…In the classic work on the crystals growth, BCF showed that the critical radius was related to the supersaturation σ by [14] r c = wα/kTσ (12) By combining the previous Rashkovich's studies [24], the critical radius for σ = 0.09 could be calculated to be about 4.61 nm. The value was far less than the radius of protuberance measured in Figure 7a.…”

Section: Appearance Of Pits At High Supersaturationmentioning

confidence: 91%

Study on Micro Morphology of Potassium Dihydrogen Phosphate Crystals Grown at Elevated Temperatures

Wang

Ding

et al. 2017

Crystals

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Potassium dihydrogen phosphate crystals were grown around 65 • C. The growth rate of KDP (KH 2 PO 4 ) crystal prismatic faces was measured by laser polarization interference system. The surface micro morphology of KDP crystals grown at various supersaturation were comparatively observed by atomic force microscope systematically. The results show that the growth rate increased with the rise of supersaturation, the aspect ratio reduced. The steps bunching height occurred at σ = 0.03 and 0.04. At this point, the steps height reached maximum value about 11.3~24.4 nm. The step bunching was almost constant at higher supersaturation. A few pits and holes appeared on the crystal surface at high supersaturation. In our opinion, the forming of these pits and holes might be related with the step movement and 2D nuclei mechanism.

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Section: Appearance Of Pits At High Supersaturationmentioning

confidence: 91%

Study on Micro Morphology of Potassium Dihydrogen Phosphate Crystals Grown at Elevated Temperatures

Wang

Ding

et al. 2017

Crystals

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“…Enigmatically KDP crystal finds exclusive application in classified path breaking facilities and is most capable material for fabricating elements utilized in lasers, optical switching, optical gates, frequency multipliers, harmonic generation, optical parametric oscillators, optoelectronics and photonic devices . Due to such high technological impetus many research groups have focused their attentiveness to grow fine quality KDP crystal either by employing different growth techniques or by optimizing growth parameters or by doping a selected quantity of impurity (organic/inorganic/semiorganic) . Our research group has been constantly striving to unveil the doping effect of carboxylic acid (viz.…”

Section: Introductionmentioning

confidence: 99%

Optimizing Structural, Microhardness, Surface Growth Mechanism, Luminescence and Thermal Traits of KH₂PO₄ Crystal Exploiting Multidirectional H‐Bonding Quality of Dopant Tartaric Acid

Shkir

Baig

Pandian³

et al. 2018

Crystal Research and Technology

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High-end nonlinear optical devices demand superior quality KH 2 PO 4 crystal and to meet this necessity slow solvent evaporation technique is employed to grow optical quality potassium dihydrogen orthophosphate (KH 2 PO 4 , KDOP) crystal by doping tartaric acid (TA) and special attention is devoted to optimize the defect influenced properties of KDOP crystal. The incorporation of TA in KDOP crystal matrix is evaluated by employing energy dispersive spectroscopic technique. The crystalline phase and structural dimensions of pure and TA doped KDOP crystal is evaluated by means of powder X-ray diffraction analysis. The luminescence behavior of TA doped KDOP crystal is examined in visible region and violet colored emission is evidenced at 408 nm. The Vickers microhardness studies are carried out to uncover the constructive influence of TA on hardness and elastic stiffness coefficient of KDOP crystal. Impressive role of TA in minimizing defect density and improving the surface growth mechanism of KDOP crystal is explored by chemical etching analysis. The thermogravimetric analysis curve is traced within 30-650°C and TA doped KDOP crystal is found thermally stale up to 233°C. The results are appraised to propose the suitability of TA doped KDOP crystal for distinct applications.

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“…Meanwhile, the adjustment of solution acidity may change the growth rate of 98% DKDP crystal greatly. The lower acidity will restrict the growth rate of prismatic faces, and this property has been expounded in other research studies [33,34]. Therefore, it is still necessary to choose a proper pD value solution for crystal growth, which can both shorten the growth period and reduce NLA.…”

Section: Resultsmentioning

confidence: 99%

Research on the Nonlinear Absorption Coefficient of 98% Deuterated DKDP Crystal at Fourth-Harmonic-Generation Wavelength

Zhang

et al. 2022

Front. Phys.

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A series of 98% deuterated DKDP crystals were grown in solutions with different pD values (2.9, 3.3, 3.8, and 4.3) using the rapid growth method. Samples were cut along the z-direction and fourth-harmonic-generation (FHG) direction which contained both pyramidal and prismatic regions. The nonlinear absorption (NLA) coefficient β of 98% deuterated DKDP crystals was obtained using the Z-scan method operated at the FHG wavelength (266 nm) of a picosecond Nd:YAG laser. According to the results, the nonlinear absorption at 266 nm could be identified as two-photon absorption. The β values of crystal grown in the solution with 3.3 pD value were higher than those of crystals grown in solutions with other pD values under higher laser fluence. The results also indicated that FHG device samples should be prepared from the pyramidal region due to its lower β value. This work will help optimizing the application of 98% DKDP crystals as FHG elements in high-power laser systems.

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Effect of pH value on the growth morphology of KH₂PO₄ crystal grown in defined crystallographic direction

Cited by 15 publications

References 22 publications

Study on Micro Morphology of Potassium Dihydrogen Phosphate Crystals Grown at Elevated Temperatures

Study on Micro Morphology of Potassium Dihydrogen Phosphate Crystals Grown at Elevated Temperatures

Optimizing Structural, Microhardness, Surface Growth Mechanism, Luminescence and Thermal Traits of KH₂PO₄ Crystal Exploiting Multidirectional H‐Bonding Quality of Dopant Tartaric Acid

Research on the Nonlinear Absorption Coefficient of 98% Deuterated DKDP Crystal at Fourth-Harmonic-Generation Wavelength

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Effect of pH value on the growth morphology of KH2PO4 crystal grown in defined crystallographic direction

Cited by 15 publications

References 22 publications

Study on Micro Morphology of Potassium Dihydrogen Phosphate Crystals Grown at Elevated Temperatures

Study on Micro Morphology of Potassium Dihydrogen Phosphate Crystals Grown at Elevated Temperatures

Optimizing Structural, Microhardness, Surface Growth Mechanism, Luminescence and Thermal Traits of KH2PO4 Crystal Exploiting Multidirectional H‐Bonding Quality of Dopant Tartaric Acid

Research on the Nonlinear Absorption Coefficient of 98% Deuterated DKDP Crystal at Fourth-Harmonic-Generation Wavelength

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Product

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Effect of pH value on the growth morphology of KH₂PO₄ crystal grown in defined crystallographic direction

Optimizing Structural, Microhardness, Surface Growth Mechanism, Luminescence and Thermal Traits of KH₂PO₄ Crystal Exploiting Multidirectional H‐Bonding Quality of Dopant Tartaric Acid