Bulk growth, structural, vibrational, crystalline perfection, optical and dielectric properties of L-threonine doped KDP single crystals grown by Sankaranarayanan-Ramasamy (SR) method

Single crystals of the relatively new nonlinear optical material L-asparagine monohydrate have been successfully grown by the slow evaporation solution growth technique at room temperature in aqueous solution. The crystal system of the title material has been confirmed by powder X-ray diffraction. The crystalline perfection of the as-grown and annealed crystals has been evaluated by high-resolution X-ray diffraction. The as-grown single crystals (particularly when their size is large) were found to contain internal structural grain boundaries, and the crystalline perfection of these crystals was found to be improved substantially by annealing at low temperatures. The crystalline perfection and the measured physical properties were found to be correlated such that the second harmonic generation efficiency, optical transparency, fluorescence and dielectric properties are enhanced as the crystal quality improves.

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Remarkable effect of l-Ascorbic acid on crystal morphology, structural, crystalline perfection, optical, photoluminescence and dielectric properties of Zinc(tris) thiourea sulphate (ZTS) single crystals

Arabian Journal of Chemistry ◽

10.1016/j.arabjc.2017.12.001 ◽

2020 ◽

Vol 13 (1) ◽

pp. 1490-1498 ◽

Cited By ~ 4

Author(s):

Mohd. Shkir ◽

V. Ganesh ◽

S. AlFaify ◽

I.S. Yahia ◽

K.K. Maurya

Keyword(s):

Ascorbic Acid ◽

Dielectric Properties ◽

Single Crystals ◽

Crystal Morphology ◽

Crystalline Perfection ◽

Remarkable Effect

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Bulk growth of organic 4-hydroxy l-proline (HLP) single crystals grown by conventional slow evaporation and Sankaranarayanan–Ramasamy (SR) method

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-017-7421-5 ◽

2017 ◽

Vol 28 (20) ◽

pp. 15354-15369 ◽

Cited By ~ 1

Author(s):

L. Jayanthi ◽

N. Prabavathi ◽

V. Sivasubramani ◽

M. Senthil Pandian ◽

P. Ramasamy ◽

...

Keyword(s):

Single Crystals ◽

Slow Evaporation ◽

Bulk Growth ◽

Sr Method

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Bulk growth, crystalline perfection and optical characteristics of inversely soluble lithium sulfate monohydrate single crystals grown by the conventional solvent evaporation and modified Sankaranarayanan–Ramasamy method

CrystEngComm ◽

10.1039/c6ce00012f ◽

2016 ◽

Vol 18 (12) ◽

pp. 2072-2080 ◽

Cited By ~ 19

Author(s):

A. Silambarasan ◽

E. Nageswara Rao ◽

S. Venugopal Rao ◽

P. Rajesh ◽

P. Ramasamy

Keyword(s):

Single Crystals ◽

Solvent Evaporation ◽

Optical Characteristics ◽

Lithium Sulfate ◽

Crystalline Perfection ◽

Bulk Growth

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The observation of defects on (100) CdTe surfaces by chemical etching

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100131759 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1424-1425

Author(s):

M.E. Lee

Keyword(s):

Single Crystal ◽

Grain Boundaries ◽

Single Crystals ◽

Chemical Etching ◽

Crystalline Perfection ◽

Crystalline Defects ◽

High Incidence ◽

Crystallographic Defects ◽

Cdznte Substrates ◽

Device Technology

The crystalline perfection of bulk CdTe substrates plays an important role in their use in infrared device technology. The application of chemical etchants to determine crystal polarity or the density and distribution of crystallographic defects in (100) CdTe is not well understood. The lack of data on (100) CdTe surfaces is a result of the apparent difficulty in growing (100) CdTe single crystal substrates which is caused by a high incidence of twinning. Many etchants have been reported to predict polarity on one or both (111) CdTe planes but are considered to be unsuitable as defect etchants. An etchant reported recently has been considered to be a true defect etchant for CdTe, MCT and CdZnTe substrates. This etchant has been reported to reveal crystalline defects such as dislocations, grain boundaries and inclusions in (110) and (111) CdTe. In this study the effect of this new etchant on (100) CdTe surfaces is investigated.The single crystals used in this study were (100) CdTe as-cut slices (1mm thickness) from Bridgman-grown ingots.

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