Table of Contents
Indian Journal of Materials Science
Volume 2013 (2013), Article ID 680256, 4 pages
Research Article

Crystal Growth and Characterization of a New NLO Material: p-Toluidine p-Toluenesulfonate

1Department of Physics, Er. Perumal Manimekalai College of Engineering, Hosur, Tamil Nadu 635 11, India
2Department of Physics, Kalasalingam University, Krishnakoil, Tamil Nadu 626 190, India
3Department of Physics, Anna University, Tirunelveli Region, Nagercoil, Tamil Nadu 629 004, India

Received 5 September 2013; Accepted 5 November 2013

Academic Editors: K. M. Garadkar and A. Kajbafvala

Copyright © 2013 M. Suresh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Single crystals of p-Toluidine p-Toluenesulfonate (PTPT), an organic nonlinear optical (NLO) material, have been grown by slow evaporation method at room temperature using ethanol as solvent. The crystal system was confirmed from the single crystal X-ray diffraction analysis. The functional groups were identified using FTIR spectroscopy. UV-Vis-NIR spectrum showed that the UV cut-off wavelength of PTPT occurs at 295 nm and it has insignificant absorption in the wavelength region of 532–800 nm. The SHG efficiency of PTPT was measured by employing Kurtz and Perry powder technique using a Q-switched mode locked Nd: YAG laser emitting 1064 nm for the first time and it was found to be 52% of standard KDP. Thermal and mechanical properties of PTPT were examined by TG/DTA and Vickers microhardness test, respectively.