Studies on conventional and Sankaranarayanan–Ramasamy (SR) method grown ferroelectric glycine phosphite (GPI) single crystals

Pandian, Muthu Senthil; Pattanaboonmee, Nakarin; Ramasamy, P.; Manyum, P.

doi:10.1016/j.jcrysgro.2010.11.093

Cited by 79 publications

(7 citation statements)

References 28 publications

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“…The structural details of the BMMC crystal are shown in Table 1 and the hydrogen bond interactions are shown in Table 2. Tables 3−5 provide the specified bond length, torsion, and selected bond angle, ) 35 are comparable with the values reported in the literature. 34 Intermolecular hydrogen bonds and coordination bonds stabilize the molecules as they create a three-dimensional network in the molecular arrangement (Table 2).…”

Section: Sxrd Analysis For Structuralsupporting

confidence: 65%

“…Furthermore, the increased optical transmittance can be explained by the nonoccurrence of any inherent structural or crystalline imperfections in the produced crystal, such as line imperfections, point imperfections, grain boundaries, vacancies, and voids. 35 The absorption of light in the optical medium involves the electronic shift from the valence to the conduction band that provides the band gap (E g ) and the band structure of the material. It is an important parameter for the material and is noted before the fabrication of any optical devices.…”

Section: Ftir Analysismentioning

confidence: 99%

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Novel Metal–Organic Framework and Crystal Engineering of Bismorpholinium Mercury(II) Tribromo Chloride (BMMC) for Optoelectronic Applications

Maadhu,

Jauhar,

Raja

et al. 2024

Crystal Growth & Design

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Optically transparent novel metal−organic nonlinear optical single crystals of bismorpholinium mercury(II) tribromo chloride (BMMC) were grown adopting a slow evaporation technique (SEST). The formation of a new crystalline structure and the morphology of the title material were revealed through single-crystal X-ray diffraction (SXRD). The space group of the title compound is found to be P2 1 /c in the monoclinic crystal system. The unit cell has four molecules adduced into it (the unit cell parameters of a, b, and c are 6.8056(6), 14.0027(10), and 17.2152( 14), respectively). The grown crystal's crystalline phase and crystalline quality were analyzed through a powder X-ray diffraction (PXRD) study. The formation of new molecular structures and multifarious functional groups was unveiled through nuclear magnetic resonance (NMR) and Fourier transform infrared spectrum (FTIR) analyses, respectively. The title compound is found to have a lower cutoff wavelength of 328 nm with 75% in the visible region. The crucial thermal parameters such as thermal stability, decomposition, and melting characteristics of the BMMC crystal have been determined using thermogravimetric analysis (TG) and differential thermal analysis (DTA) under a nitrogen atmosphere. The laser damage threshold of the grown crystal was found to be 2.242 GW/cm 2 with the irradiation of nanosecond, 1064 nm Nd:YAG laser. Third-order nonlinearity of the BMMC crystal was evaluated by Z-scan measurements. The optical limiting (OL) property of the crystal grown has an amplitude of 532 mW and a threshold of 28 mW, respectively.

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Section: Sxrd Analysis For Structuralsupporting

confidence: 65%

Section: Ftir Analysismentioning

confidence: 99%

Novel Metal–Organic Framework and Crystal Engineering of Bismorpholinium Mercury(II) Tribromo Chloride (BMMC) for Optoelectronic Applications

Maadhu,

Jauhar,

Raja

et al. 2024

Crystal Growth & Design

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“…It is worthwhile to mention that the good optical transmittance (about 90%) in the modified SR method grown crystal is attributed to the better crystalline perfection compared to conventional and ordinary SR method grown crystals. Moreover, the enrichment of optical quality may be due to the absence of intrinsic structural or crystalline defects like line defects, point defects, low angle grain boundaries, vacancies, and voids . In that connection, the optimized cooling rate was also sufficient to ensure the simultaneous good quality and relatively fast growth rate in the modified SR method grown crystal.…”

Section: Resultsmentioning

confidence: 98%

“…Moreover, the enrichment of optical quality may be due to the absence of intrinsic structural or crystalline defects like line defects, point defects, low angle grain boundaries, vacancies, and voids. 58 In that connection, the optimized cooling rate was also sufficient to ensure the simultaneous good quality and relatively fast growth rate in the modified SR method grown crystal. Similarly, the high crystalline perfection was also observed in the modified SR method grown 2A5NPDP and the details are already discussed in the earlier HRXRD section.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, on continuous heating, no endothermic or exothermic peaks were observed in the DTA curve. The thermal stability of the 2A5NPDP crystal was found to be high compared to some 2A5NP derivative crystals, ,,,,− and the details are presented in Table . It can be concluded that the strong hydrogen bonding interaction between the 2A5NP cation and phosphate anion is more responsible for the enhancement of thermal stability in the 2A5NPDP single crystal.…”

Section: Resultsmentioning

confidence: 99%

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Evaluation of Linear and Nonlinear Optical Properties of D−π–A Type 2-Amino-5-Nitropyridinium Dihydrogen Phosphate (2A5NPDP) Single Crystal Grown by the Modified Sankaranarayanan–Ramasamy (SR) Method for Terahertz Generation

Vediyappan¹,

Chaudhary

Venkatesh

et al. 2019

Crystal Growth & Design

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We report the growth process and linear and nonlinear optical characterization of high quality improvised semiorganic 2A5NPDP single crystal using the modified SR method for the first time. The major difficulties for the growth of 2A5NPDP single crystal have been resolved with the aid of a temperature lowering method. After optimization of the growth conditions, a transparent 2A5NPDP single crystal was harvested with a size of 85 mm length and 10 mm diameter over a period of 60 days. The growth rate of the modified SR method grown crystal was found to be 10 times higher than that of the conventional slow evaporation solution technique (SEST) grown crystal. The unit cell parameters of the grown crystal were ascertained by the single crystal X-ray diffraction (SXRD) and powder X-ray diffraction (PXRD) techniques. The high crystalline perfection of the crystal was ascertained by using a high-resolution X-ray diffraction (HRXRD) technique. The presence of multifarious functional groups of the 2A5NPDP crystal were confirmed by Fourier transform infrared (FT-IR) and Fourier transform Raman (FT-Raman) spectral analyses. The thermal property was assessed by the thermogravimetric (TG) and differential thermal analysis (DTA). It shows that the grown crystal withstands temperature up to 175 °C. UV–vis–NIR analysis was used to measure the linear optical property while third-order nonlinear optical properties were ascertained using Z-scan and optical limiting (OL) techniques. The optical limiting threshold of conventional method grown crystal is 5.7 mW/cm2, whereas the modified SR method grown crystal is 4.7 mW/cm2. Low value of limiting threshold indicates that the grown crystal has minimum defects. Finally, 800 nm wavelength of 140 fs at 80 MHz repetition rate obtained from a Ti:sapphire oscillator was used for the terahertz (THz) generation between 0.1 and 2.1 THz range. The efficiency of the generated THz signal was measured using another 800 nm wavelength of 40 fs, at 1 kHz repetition rate obtained from a Ti:sapphire amplifier. The generated THz signal is separated out from unconverted 800 nm using Teflon filters, and power is measured using a pyrometer. The maximum conversion efficiency of generated THz signal is on the order of 0.63 × 10–5%.

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Single crystal growth, structural, optical, mechanical, dielectric and thermal studies of formic acid doped potassium dihydrogen phosphate crystal for NLO applications

Shkir

Muley

Shirsat

et al. 2015

Crystal Research and Technology

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Optically transparent formic acid (FA) doped potassium dihydrogen phosphate (KDP) crystal of dimension 21×15×9 mm3 has been grown by slow evaporation solution technique (SEST). The X‐ray diffraction (XRD) technique was used to confirm the cell parameters and the shifts in peak positions of identified reflecting planes. The incorporation of FA in KDP has been qualitatively analyzed by fourier transform infrared analysis. The UV‐visible absorption spectrum of crystals has been recorded in the range of 200 to 900 nm and the doped KDP crystal is found to have improved optical parameters than pure KDP. The color centered photoluminescence emission spectrum of grown crystal has been illustrated in visible region. The mechanical behavior of pure and doped KDP crystal has been investigated using the Vicker's microhardness analyzer and hardness parameters have been calculated. The effect of FA on thermal stability of KDP crystal was examined by means of thermogravimetric and differential thermal analysis. The temperature dependent dielectric behavior of crystals was studied.

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Studies on conventional and Sankaranarayanan–Ramasamy (SR) method grown ferroelectric glycine phosphite (GPI) single crystals

Cited by 79 publications

References 28 publications

Novel Metal–Organic Framework and Crystal Engineering of Bismorpholinium Mercury(II) Tribromo Chloride (BMMC) for Optoelectronic Applications

Novel Metal–Organic Framework and Crystal Engineering of Bismorpholinium Mercury(II) Tribromo Chloride (BMMC) for Optoelectronic Applications

Evaluation of Linear and Nonlinear Optical Properties of D−π–A Type 2-Amino-5-Nitropyridinium Dihydrogen Phosphate (2A5NPDP) Single Crystal Grown by the Modified Sankaranarayanan–Ramasamy (SR) Method for Terahertz Generation

Single crystal growth, structural, optical, mechanical, dielectric and thermal studies of formic acid doped potassium dihydrogen phosphate crystal for NLO applications

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