Crystal Growth, Thermal, Mechanical and Optical Properties of a New Organic Nonlinear Optical Material: Ethyl P-Dimethylamino Benzoate (EDMAB)

V. Natarajan, J. Kalyana Sundar, P. Selvarajan, M. Arivanandhan, K. Sankaranarayanand, S. Natarajan, Y. Hayakawa

Department of Physics, Aditanar College of Arts and Science, Tiruchendur, India.
Research Institute of Electronics, Shizuoka University, Johoku 3-5-1, Hamamatsu, Japan..
School of Physics, Alagappa University, Karaikudi-630003, India..
School of Physics, Madurai Kamaraj University, Madurai-625021, India..

DOI: 10.4236/jmmce.2011.101001                

Abstract

An organic material, namely, ethyl p-dimethylamino benzoate was crystallized for the first time by solution growth technique using pure and mixed solvents. Growth kinetics and morphology changes with solvents were investigated based on solute –solvent interactions of pure and mixed solvents. An appropriate mixed solvent for high quality crystals with well-defined morphology is reported. The absence of solvent molecules and the presence of various functional groups of the grown sample were qualitatively confirmed by FTIR spectroscopic studies. Thermal properties of the grown sample were analyzed by TG and DTA analysis. Mechanical properties of the EDMAB crystal were investigated by micro hardness studies. Moreover, the grown crystal shows high transparency in the visible and near IR regions. The material shows relatively high SHG efficiency than that of KDP.

Keywords

Organic compounds; Crystal growth; - Optical properties

Conflicts of Interest

The authors declare no conflicts of interest.

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