Synthesis, Growth and Physicochemical Properties of Seminorganic NLO Crystal Bis(Thiourea) Ammonium Nitrate

2nd International Conference on Materials Science and Technology

Ravi Kumar, S.M.^1 ; Anbarasi, A.^2 ; Selvakumar, S.^3 ; Shanmuga Sundar, G.J.^4

Department of Physics, Government Arts College, Tiruvannamalai, Tamil Nadu

606 603, India^1

Department of Physics, Periyar Government Arts College Cuddalore, Tamil Nadu, 607 001, India^2

Department of Physics, Government Arts and Science College, Nandanam, Chennai, Tamil Nadu

600 035, India^3

Department of Physics, Arignar Anna Government Arts College, Cheyyar, Tamil Nadu

604 407, India^4

关键词: NLO crystals;    Semi organic;    Slow evaporation;    Tga and dta;    UV-Vis NIR;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/360/1/012030/pdf
DOI  :  10.1088/1757-899X/360/1/012030

来源: IOP

【 摘 要 】

Nowadays, NLO materials are of current research interest due to their variety of applications such as second harmonic generation, optical bi-stability, laser remote sensing, optical disk data storage, laser driver fusion, medical and spectroscopic laser, photonic integrated circuitry, optical parametric oscillations and THz wave generation. This work concentrated on (bis)thiourea ammonium nitrate (BTAN) crystal was grown from aqueous solution by slow evaporation technique. The grown crystal has been subjected to single crystal X-ray diffraction to determine the unit cell dimensions. The grown crystal was also characterized by recording the powder X-ray diffraction patterns and by identifying the diffracting planes. The Fourier Transform Infrared (FT-IR) spectra have been recorded in the range 400-4500 cm-1. Second harmonic generation (SHG) for the materials of this work was confirmed using Nd:YAG laser. The UV-visible spectra show that the grown crystals have wide optical transparency in the entire visible region. The Thermo gravimetric/Differential Thermal Analyses reveal that the materials have good thermal stability.