Growth and characterization of l-alanine admixtured urea single crystal

Single crystals of urea with l-alanine were grown by low temperature solution growth method from aqueous solution. The cell parameters and crystalline nature of the grown crystals were determined from single and powder X-ray diffraction studies. The qualitative analyses of the presence of functional groups in the grown crystals were estimated from FTIR analysis. The UV-visible spectrum reveals the optical property of the grown crystal. The second harmonic generating (SHG) properties are demonstrated using Kurtz-Perry powder technique. Photoluminescence shows that the grown crystal has a blue fluorescence emission. Photoconductivity study reveals the negative photoconductivity nature of the crystal. The low value of dielectric loss with high frequency for these samples suggests that the samples possess enhanced optical quality with lesser defects and this parameter is of vital importance.