Growth and Characterization of Bisthiourea Nickel Bromide—New Semiorganic Nonlinear Optical Crystal

Abstract

A new semiorganic nonlinear optical crystal of bisthiourea nickel bromide (BTNB) was grown successfully by slow evaporation technique using water as solvent. The lattice parameters of the grown crystal have been determined by X-ray diffraction studies. Vibrational spectrum is recorded to determine symmetries of molecular vibrations. Optical absorbance spectrum recorded revealed that this crystal has good transparency in the visible region. The second harmonic generation test of BTNB confirmed the nonlinear nature of the crystal. The BTNB crystal was analyzed by a differential thermal analysis and thermogravimetric analysis (DTA-TGA) to obtain its thermal stability. Vickers microhardness test done on the crystal shows that the crystal has greater physical strength.

Studies on optical, mechanical, dielectric properties of bisthiourea nickel bromide NLO single crystal

“…The calculated lattice parameters are a = 6.132Á, b = 8.091Á, c = 9.112Á. The crystal belongs to the orthorhombic system and which agree well with the available reported literature values [8]. …”

Optical, Thermal and Nonlinear Properties of Tristhiourea Lanthanum Nitrate

“…From the spectrum, it is evident that the TTLaN crystal has a very lower UV cut-off wavelength of 235.78 nm, along with a large transmission window in the entire visible region. This makes it suitable for more optoelectronic applications [3].…”

Synthesis and Characterization of Nickel Doped Urea Thiourea Naphthylamine Single Crystal Developed by Slow Evaporation Method

“…Crystal growth is an interdisciplinary subject covering physics, chemistry, material science, chemical engineering, metallurgy, crystallography, mineralogy, etc. In the past few decades, there has been a growing interest on crystal growth processes, particularly in view of the increasing demand of materials for technological applications [1][2][3][4][5][6][7][8][9][10] . Atomic arrays that are periodic in three dimensions, with repeated distances are called single crystals.…”