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Effect of conjugate bonds on Growth and characterization of pure and KDP doped 2-Benzamidoacetic acid Organic semiconductor materials for high refractive index devices
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  • Shobha Kulshrestha,
  • Satish Teotia,
  • Harish Kumar,
  • Sunil Kumar Pandey
Shobha Kulshrestha
NIMS University

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Satish Teotia
NIMS University
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Harish Kumar
NIMS University
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Sunil Kumar Pandey
NIMS University
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Abstract

2-Benzamidoacetic acid is a conjugate aromatic organic amino acid compound. These conjugated bonds attract the attention due to having high nonlinear optical properties which is applicable in various optical applications. Single crystals of pure and potassium diahydrogen phosphate (KDP) doped 2-Benzamidoacetic acid are grown by slow evaporation method at room temperature. These crystals are confined in size with limpid appearance and non-hygroscopic nature. UV-visible study shows transparent nature of grown crystals in the over the visible region (400 to 800 nm). The transparent nature of crystal shows less absorption of light in the visible region. Absorption coefficient (α), Extinction coefficient (k), refractive index (n), optical conductivity (σop), Polarisability (P), Susceptibility (χop) all these optical data are supported the experimental data. The lower cut-off wavelengths are 305 and 350 nm of grown crystals of pure and (KDP) doped 2-Benzamidoacetic acid. The optical band gap indicates that doping of KDP in 2-Benzamidoacetic acid crystal turn into organic to semiorganic crystal. The range of optical band gap shows that crystal is useful in optoelectronics devices. For the NLO property second harmonic generation test was performed. This study shows that grown crystals are recommend for fabrication of green light emission device. The various functional groups of the grown crystal were designated using Fourier transform infrared (FTIR). The crystal dimensions of the grown crystal of pure and doped 2-Benzamidoacetic acid were confirmed by single crystal X-ray diffraction (SXRD) and the crystalline nature of crystal was confirmed and hkl planes were indexed by powder X-ray diffraction (PXRD) analysis. Scanning electron microscope (SEM) shows good surface morphology of grown crystals. Vickers hardness test shows good mechanical strength for manufacturing of devices.