Abstract
The semicarbazone of p-anisaldehyde (SPAS) is a novel organic nonlinear optical material. The SPAS has been synthesized and the solubility studies were carried out in the temperature range 30-60 °C. Single crystals of SPAS have been grown following the slow evaporation technique and the unit cell parameters have been evaluated by single crystal X-ray diffraction technique. The UV-Visible, FT-IR and 1HNMR spectra have been recorded to characterize the grown crystal. The thermogravimetric and differential thermal analysis of the grown crystal revealed that there is no phase transformation in SPAS, and its thermal stability was found to be good. The dielectric measurement was made as a function of frequency (50 Hz - 5 MHz). The second harmonic generation in the sample was confirmed by the Kurtz powder technique.
Highlights
In recent years, the study of the design and synthesis of molecular materials with larger polarizabilities has been a hot research topic (Elmali A et al, 2005; Karakas A, Elmali A et al, 2006; Karakas A, Unver H et al, 2006)
Due to potential applications in various photonic technologies, the non-linear optical (NLO) properties of organic molecular materials have been the object of intense research (Kanis D R et al, 1994)
The organic molecular materials have emerged as a new class of promising nonlinear optical materials because of their superior qualities over inorganic systems
Summary
The study of the design and synthesis of molecular materials with larger (hyper) polarizabilities has been a hot research topic (Elmali A et al, 2005; Karakas A, Elmali A et al, 2006; Karakas A, Unver H et al, 2006). Due to potential applications in various photonic technologies, the NLO properties of organic molecular materials have been the object of intense research (Kanis D R et al, 1994). Devices for applications in optical communications, optical processors, optical switches, wavelength filters and modulators have been created using the NLO response properties of organic systems. Only a few of them could be crystallized and investigated for second order NLO applications. The organic molecular materials have emerged as a new class of promising nonlinear optical materials because of their superior qualities over inorganic systems. The synthesis, growth and optical and thermal properties of a new organic crystal namely semicarbazone of p-anisaldehyde (SPAS) by slow evaporation solution growth technique using dimethyl formamide (DMF) as a solvent is reported. Second harmonic generation (SHG) behavior of the SPAS crystal was tested by Nd: YAG laser
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