Growth and characterization of l-leucine l-leucinium picrate single crystal: A new nonlinear optical material

Bhagavannarayana, G.; Riscob, B.; Shkir, Mohd.

doi:10.1016/j.matchemphys.2010.12.040

Cited by 121 publications

(26 citation statements)

References 17 publications

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“…Since the main crystal block has reasonably good crystalline perfection, such defects may not have much influence on the physical properties, as shall be discussed in the following section. However, a quantitative analysis of such defects, which are often unavoidable owing to the nature of the material and the growth method, is of great importance in certain device applications, for example, phase matching applications in nonlinear optical crystals (Bhagavannarayana, Riscob & Shakir, 2011) and piezoelectric applications .…”

Section: High-resolution Xrd Analysismentioning

confidence: 99%

Enhancement of thermoelectric figure of merit in Bi₂Se₃crystals through a necking process

et al. 2015

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The growth of good quality bulk single crystals of bismuth selenide by employing a high-temperature vertical Bridgman technique with a specially designed ampoule having a provision for a necking process is reported. Several growth experiments were performed and reproducible results were obtained. The crystal structure and lattice dimensions were confirmed by powder X-ray diffraction (PXRD), the bulk crystalline perfection was assessed using highresolution X-ray diffractometry and the good bulk crystalline perfection with an indication of layered structure was confirmed. Transmission electron microscopy (TEM) was carried out for the grown single crystal and confirmed the layered structure. High-resolution TEM (HRTEM) was also used to further assess the crystalline perfection. The direct measurement of d spacing obtained from HRTEM imaging was found to be in good agreement with the data obtained from PXRD. The thermal behavior was examined by differential scanning calorimetry and a sharp melting was found at 983 K, which revealed the purity of the bismuth selenide. The Seebeck coefficient and electrical and thermal conductivities were measured, and a thermoelectric figure of merit was calculated in order to assess the suitability of the crystal for thermoelectric applications such as refrigeration and portable power generation. Nanoindentation analysis was also performed for the first time.

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Section: High-resolution Xrd Analysismentioning

confidence: 99%

Enhancement of thermoelectric figure of merit in Bi₂Se₃crystals through a necking process

et al. 2015

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“…The influence of such defects may not influence much on the NLO properties. However, a quantitative analysis of such unavoidable defects is of great importance, particularly in the case of phase matching applications as explained in our recent article [18]. The spectral bands are interpreted and compared with the standard spectra of the functional groups [19,20].…”

Section: Hrxrd Analysismentioning

confidence: 99%

Investigation on structural, spectral, and thermal properties of l-histidinium glutarate monohydrate (LHG)

Albert

Pragasam

Bhagavannarayana

et al. 2014

J Therm Anal Calorim

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L-histidinium glutarate monohydrate, an organic nonlinear optical crystal has been successfully grown from deionized water by slow solvent evaporation method at room temperature. Crystal structure and its lattice parameters were identified by single-crystal X-ray diffraction technique. Crystalline perfection of the grown crystal was studied by high-resolution X-ray diffraction rocking curve measurements by employing a multicrystal X-ray diffractometer. FT-IR and FT-Raman spectral studies were employed to identify the presence of various functional groups and mode of vibrations in the crystal. Thermal behavior of the crystal was studied by TG-DTA, TG-DTG, and DSC analyses. Optical absorption of the crystal in the wavelength region 200-1,000 nm was studied by UV-Vis-NIR spectral analysis. Kurtz and Perry powder technique was employed to find the second harmonic generation efficiency of the crystal.

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Section: High-resolution X-ray Diffraction Analysismentioning

confidence: 99%

Growth, crystal perfection, optical and electrical properties of organic crystal: Brucinium 5-sulfosalicylate trihydrate

Gayathri

Krishnan

Sivakumar

et al. 2014

Optik

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Growth and characterization of l-leucine l-leucinium picrate single crystal: A new nonlinear optical material

Cited by 121 publications

References 17 publications

Enhancement of thermoelectric figure of merit in Bi₂Se₃crystals through a necking process

Enhancement of thermoelectric figure of merit in Bi₂Se₃crystals through a necking process

Investigation on structural, spectral, and thermal properties of l-histidinium glutarate monohydrate (LHG)

Growth, crystal perfection, optical and electrical properties of organic crystal: Brucinium 5-sulfosalicylate trihydrate

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Growth and characterization of l-leucine l-leucinium picrate single crystal: A new nonlinear optical material

Cited by 121 publications

References 17 publications

Enhancement of thermoelectric figure of merit in Bi2Se3crystals through a necking process

Enhancement of thermoelectric figure of merit in Bi2Se3crystals through a necking process

Investigation on structural, spectral, and thermal properties of l-histidinium glutarate monohydrate (LHG)

Growth, crystal perfection, optical and electrical properties of organic crystal: Brucinium 5-sulfosalicylate trihydrate

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Enhancement of thermoelectric figure of merit in Bi₂Se₃crystals through a necking process

Enhancement of thermoelectric figure of merit in Bi₂Se₃crystals through a necking process