• S. Ramamoorthy
• S. Sundaravadivel
• A. Ragesh

Single crystals of dimethyl ammonium picrate (DMAP) were grown from a mixture of acetone and distilled water (1:1) was used as a solvent by the slow evaporation technique at constant temperature. The powder XRD confirms the crystalline nature. Third-order non-linear optical properties of the grown crystal were derived by employing a single beam Z-scan technique at a wavelength of 632 nm with He-Ne Laser system. The presence of functional groups is estimated qualitatively by FTIR analysis. The UV–Vis spectrum shows a cut-off wavelength 460nm with band gap 2.34 eV. The refractive index has been found 1.37. The photocurrent of crystals is more than that of the dark current. The dielectric loss is low at high frequency and this behavior is of vital importance for NLO applications. The full width at half maximum (FWHM) of the diffraction curves is 18 arc s, using HRXRD which is close to that expected from the plane wave theory of dynamical X-ray diffraction. Crystalline perfection is assessed laser damage threshold is observed for the grown crystal.

Characterisation, FTIR, XRD, UV, Photoconductivity

"SYNTHESIS, GROWTH, STRUCTURAL, OPTICAL, ELECTRICAL, PHOTOCONDUCTIVITY, Z-SCAN MEASUREMENT OF DMAP SINGLE CRYSTALS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.28-34, February-2019, Available :http://www.jetir.org/papers/JETIRZ006005.pdf

"SYNTHESIS, GROWTH, STRUCTURAL, OPTICAL, ELECTRICAL, PHOTOCONDUCTIVITY, Z-SCAN MEASUREMENT OF DMAP SINGLE CRYSTALS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp28-34, February-2019, Available at : http://www.jetir.org/papers/JETIRZ006005.pdf