Optical and dielectric studies of solution grown glycinium maleate single crystal |
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| Authors: | Neelam Singh B.K. Singh M.K. Gupta Binay Kumar |
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| Affiliation: | 1. Department of Physics, Theivanai Ammal College for Women (Autonomous), Villupuram, India;2. Department of Physics, MVJ College of Engineering (Autonomous), Bangalore, India;3. Department of Physics, Vel Tech Rangarajan Dr. Sagunthala R and D Institute of Science and Technology, Avadi, Chennai, India;4. Department of Physics, Muthayammal Engineering College (Autonomous), Rasipuram, Namakkal, Tamil Nadu, India;5. Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, India;1. Institute for Scintillation Materials, 60 Nauky Ave, Kharkov 61072, Ukraine;2. Institute for Single Crystals, 60 Nauky Ave, Kharkov 61072, Ukraine;3. SSI “Institute for Single Crystals”, 60 Nauky Ave, Kharkov 61072, Ukraine;4. INFN -Laboratori Nazionali del Gran Sasso, Assergi 67100, Italy;1. Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India;2. Department of Physics, Hindu College, University of Delhi, Delhi 110007, India;3. Department of Physics, Maitreyi College, University of Delhi, Delhi, India;1. Department of Physics and Astrophysics, University of Delhi, Delhi, India;2. Department of Physics, Hindu College, University of Delhi, Delhi, India;3. Department of Physics, Maitreyi College, University of Delhi, Delhi, India;1. Department of Physics, Hindu College, University of Delhi, Delhi, India;2. Department of Physics and Astrophysics, University of Delhi, Delhi, India;3. Department of Physics, Maitreyi College, University of Delhi, Delhi, India;4. CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, Delhi, India;1. Department of Physics, Faculty of Science, Benghazi University, Libya;2. Department of Physics, Faculty of Science, Alexandria University, Egypt;3. Department of Chemistry, Faculty of Science, Alexandria University, Egypt |
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| Abstract: | Bulk single crystals of glycinium maleate have been grown from aqueous solution by slow evaporation method by optimizing the growth parameters within a period of 15 days. From X-ray diffraction analysis, the crystal was found to crystallize in monoclinic structure (space group C2/c) with a = 17.866 Å, b = 5.684 Å, c = 17.408 Å and β = 112.65°. Presence of characteristic functional groups was confirmed in FTIR analysis. UV–Vis spectral analysis has revealed the absence of any high absorbance region between the wavelengths ranging from 300 to 900 nm. The optical band gap was calculated and found to be 3.91 eV. The activation energy for conduction at different frequencies was calculated and found to decrease from 0.54 eV to 0.41 eV as frequency increased from 100 Hz to 2 MHz. The dielectric behavior, conduction mechanism and the optical characterization of the glycinium maleate single crystals are being reported for the first time. |
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