Crystal growth and defects characterization of zinc tris (thiourea) sulfate: a novel metalorganic nonlinear optical crystal

Venkataramanan, V.; Dhanaraj, Govindhan; Wadhawan, V. K.; Sherwood, J. N.; Bhat, H. L.

doi:10.1016/0022-0248(95)00212-x

Cited by 135 publications

(59 citation statements)

References 7 publications

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“…Metal complex of thiourea, commonly called semi organics, include the advantages of both organic and inorganic part of the complex. A variety of crystals of this class has been grown by several groups [5][6][7]. Growth of bulk single crystals of these materials is a matter of serious concern.…”

Section: Introductionmentioning

confidence: 99%

Growth and characterization of Bis Thiourea Zinc Acetate (BTZA)

Jayalakshmi

Kumar²

2005

Cryst. Res. Technol.

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Single crystals of BTZA have been grown by low temperature solution growth method using slow cooling process at an optimized pH of 3.5. The grown crystals have been examined under an optical microscope to study its surface morphology. The morphological studies show that the growth takes place by spreading of growth layers. Formation of rectangular shaped etch pit on the as-grown crystal has been explained in relation to the growth conditions. Single crystal X-ray diffraction analysis has been carried out to confirm the monoclinic system. Transmission spectrum reveals that the crystal has a low UV cut off of 434.5 nm and has a transmittance of 100%. Dependence of micro hardness on load has been studied. Powder X-ray Diffraction and FT-IR have been carried out to characterize the grown crystals. BTZA forms metal -sulfur bond and has good optical transmission in the entire visible region, which is the essential requirement for a non-linear crystal.

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Section: Introductionmentioning

confidence: 99%

Growth and characterization of Bis Thiourea Zinc Acetate (BTZA)

Jayalakshmi

Kumar²

2005

Cryst. Res. Technol.

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“…The pH of the solution was the stoichiometric value of 5.6. The solubility data of ZTS was used to prepare a solution saturated at 45 °C [14]. The saturated solution was overheated to 55 °C to avoid nucleation during the filtration process.…”

Section: Methodsmentioning

confidence: 99%

“…This exhibits that growth of ZTS at lower pH results in isometric morphology [13]. Venktaramannan et al reported anisotropy growth rates along the [001] direction [14]. Growth morphology of ZTS crystal was investigated theoretically in terms of Hartman−Perdok approach by Verma et al and also verified experimentally [15].…”

Section: Introductionmentioning

confidence: 92%

Optical imaging of the growth kinetics and polar morphology of zinc tris(thiourea) sulphate single crystals

Dinakaran

Verma

Das

et al. 2010

Cryst. Res. Technol.

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Growth kinetics of zinc tris(thiourea) sulphate (ZTS) single crystals was imaged in two different growth geometries using laser shadowgraphy technique. Growth rates of the {010} and {001} faces were computed as a function of supersaturation. The time evolution of polar morphology of ZTS crystal based on the growth rates is presented. Except (001) face, all the other three faces are found to have a dead zone resulting in large induction period of growth. The anisotropy in the growth rates of the (001) and (001)

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“…The development of the theories of crystal growth has thrown more light on the understanding of crystal growth phenomena. Compared with inorganic NLO materials, organic materials may fulfill many of these requirements, but there are also some drawbacks with organic NLO materials such as environmental stability, poor chemical and mechanical stability, red-shift of the cut-off wavelength, low laser damage thresholds and poor phase matching properties [5][6][7][8][9][10][11][12]. In order to overcome these drawbacks and improve the properties, the growth of semi-organic crystals has nowadays come into prominence.…”

Section: Introductionmentioning

confidence: 99%

HUMO-LUMO Studies on Methyl Orange Doped ZTS Crystals for Laser Applications

Suresh¹,

Kumar²,

Ambalavanan³

et al. 2018

IJERMT

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Abstract:inc Thiourea Sulphate (ZTS), crystal is a magnificent metal natural compound, which consolidates the upsides of both natural and inorganic materials when contrasted and other customary non-linear optical materials and in this way can be utilized as a part of a more extensive scope of uses. Late endeavors at delivering new recurrence transformation materials have concentrated essentially on expanding the extent of the NLO properties that can recurrence twofold low pinnacle control sources, for example, diode lasers. The thermo gravimetric examination (TGA) and differential warm investigation (DTA) were completed utilizing Seiko warm analyzer at warming rate 20°C/min in air to decide the warm dependability of the compound. ZTS crystals were developed by moderate cooling procedure. This empowers the development of mass gems along all the three bearings at an ideal pH. FTIR examines demonstrate that in the spectra of ZTS there is a move in the recurrence band in the low-recurrence district which uncovers that thiourea shapes sulfur-to-zinc securities in the ZTS crystals. The stability and charge delocalization of the molecule were also studied by natural bond orbital (NBO) analysis. The HOMO-LUMO energies describe the charge transfer takes place within the molecule. Molecular electrostatic potential has been analyzed. The developments try in extensive scale with this enhanced pH qualities is required to yield mass crystal appropriate for laser combination tests and SHG device applications.

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Crystal growth and defects characterization of zinc tris (thiourea) sulfate: a novel metalorganic nonlinear optical crystal

Cited by 135 publications

References 7 publications

Growth and characterization of Bis Thiourea Zinc Acetate (BTZA)

Growth and characterization of Bis Thiourea Zinc Acetate (BTZA)

Optical imaging of the growth kinetics and polar morphology of zinc tris(thiourea) sulphate single crystals

HUMO-LUMO Studies on Methyl Orange Doped ZTS Crystals for Laser Applications

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