Growth and characterization of biadmixtured TGS single crystals

Bharthasarathi, T.; Shankar, V. Siva; Jayavel, R.; Murugakoothan, P.

doi:10.1016/j.jcrysgro.2008.10.114

Cited by 13 publications

(5 citation statements)

References 19 publications

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“…The peaks at 764, 680, 618, 508 cm -1 corresponds to NH 3 + for torsional oscillations. FTIR intensity and frequencies of the grown TGS crystal matches with the reported literature [39]. The FTIR assignments of the grown TGS crystal are given in Table.1 …”

Section: Ftir Analysissupporting

confidence: 78%

Growth and Characterization of Triglycine Sulphate Crystal

Job¹

2017

IOSR JAP

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Section: Ftir Analysissupporting

confidence: 78%

Growth and Characterization of Triglycine Sulphate Crystal

Job¹

2017

IOSR JAP

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“…FTIR analysis shows a broad spectrum between 3350-2800 cm −1 which arises from the asymmetric and symmetric N-H stretching of the NH 3 group, C-H stretching of the CH 2 group and O-H stretching of the hydrogen-bonded carboxyl group. 24 The absorption around 1706 cm −1 is assigned to stretching of the CO bond, while in the case of CV dye doped crystals, it was found to be very slightly shifted at 1708 cm…”

Section: Functional Group Analysismentioning

confidence: 97%

Performance of crystal violet doped triglycine sulfate single crystals for optical and communication applications

et al. 2015

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Single crystals of 0.01 and 0.02 mol% crystal-violet dye doped triglycine sulfate (NH 2 CH 2 COOH) 3 H 2 SO 4 (TGS) have been grown by slow evaporation technique. Enhanced dielectric, optical, thermal and mechanical behavior has been achieved by dye doping. Monoclinic structures showing particular coloring pattern and morphology change with dye concentration were obtained. Various functional groups and dye incorporation in grown crystals were confirmed qualitatively by FTIR and Raman analysis. A significant increase in Curie temperature from 50 to 55 °C with decrease in maximum permittivity has been observed. UV-Vis spectra showed an increased transmittance window and increased optical band gap from 5.61 to 6.11 eV as a result of doping. Increase in the sharpness and intensity of photoluminescence peak with a blue shift have been observed in doped crystals. The thermal stability and the decomposition temperature were found to increase by about 10 °C in 0.01mol% dye doped TGS. The mechanical strength of the grown crystals was estimated by Vickers microhardness test and was found high for dye doped TGS. High piezoelectric charge coefficient d 33 of 16 pC/N was observed for pure TGS which decreased as a result of dye-effect. The fabrication of patch antenna was carried out after simulating its resonant frequency that makes it suitable for telecommunication applications. ABSTRACTSingle crystals of 0.01 and 0.02 mol% crystal-violet dye doped triglycine sulfate (NH 2 CH 2 COOH) 3 H 2 SO 4 (TGS) have been grown by slow evaporation technique. Enhanced dielectric, optical, thermal and mechanical behavior has been achieved by dye doping. Monoclinic structures showing particular coloring pattern and morphology change with dye concentration were obtained. Various functional groups and dye incorporation in grown crystals were confirmed qualitatively by FTIR and Raman analysis. A significant increase in Curie temperature from 50 to 55 °C with decrease in maximum permittivity has been observed. UV-Vis spectra showed an increased transmittance window and increased optical band gap from 5.61 to 6.11 eV as a result of doping. Increase in the sharpness and intensity of photoluminescence peak with a blue shift have been observed in doped crystals. The thermal stability and the decomposition temperature were found to increase by about 10 °C in 0.01mol% dye doped TGS. The mechanical strength of the grown crystals was estimated by Vickers microhardness test and was found high for dye doped TGS. High piezoelectric charge coefficient d 33 of 16 pC/N was observed for pure TGS which decreased as a result of dye-effect. The fabrication of patch antenna was carried out after simulating its resonant frequency that makes it suitable for telecommunication applications.

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“…19 The coercive eld (E c ) value and spontaneous polarization (P S ) for pure TGS have been reported in literature. 20,21 The reported coercive eld value for pure TGS is 2.58 kV cm À1 and the spontaneous polarization is 3.4 mC cm À2 . The coercive eld (E c ) value of the L-arginine, L-histidine and L-alanine crystals is more than the pure one, implying that the crystals are in the single-domain state.…”

Section: Ferroelectric Measurementsmentioning

confidence: 99%

“…The reported d 33 coefficient value for pure TGS is 10.22 pC N À1 . 20 The obtained d 33 coefficient value for doped TGS crystals is given in Table 2.…”

Section: Piezoelectric (D 33 ) Measurementsmentioning

confidence: 99%