TITLE:
Crystal Growth, Thermal, Mechanical and Optical Properties of a New Organic Nonlinear Optical Material: Ethyl P-Dimethylamino Benzoate (EDMAB)
AUTHORS:
V. Natarajan, J. Kalyana Sundar, P. Selvarajan, M. Arivanandhan, K. Sankaranarayanand, S. Natarajan, Y. Hayakawa
KEYWORDS:
Organic compounds; Crystal growth; - Optical properties
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.10 No.1,
January
20,
2011
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.