Synthesis, growth and characterization of 2,5-dimethyl-N-(3-phenylprop-2-en-1-ylidene) aniline (2,5 DPPA) single crystal: A new second order nonlinear optical material for photonic and optoelectronic applications

The second order nonlinear optical material and the single crystal of 2,5-Dimethyl-N-(3-phenylprop-2-en-1-ylidene) aniline (2,5 DPPA) which is organic in character was well synthesised by the standard slow evaporation method. The crystalline structure of 2,5 DPPA studied by single crystal XRD analysis confirmed that the material belongs to the orthorhombic crystal system with non-centrosymmetric space group P212121. Functional groups were analyzed by Fourier trans forms infrared analysis. The calculated optical band gap was found to be 2.76 eV. The second harmonic generation of 2,5 DPPA crystal was confirmed by Kurtz-Perry powder test using the source of Nd:YAG laser and found that it is 1.25 times greater than that of reference KDP material. Thermal stability of the titled crystal was studied by TGA/DTA technique. The Vicker's hardness (H-v) test portrays that the mechanical resistance of the crystal's hardness coefficient value is 2. The dielectric constant and dielectric loss of the grown crystal decreases with increase in array of the line of value of the frequencies.

Automated summary

The study successfully synthesized the second order nonlinear optical material 2,5-DPPA single crystal using the slow evaporation method, and confirmed its excellent performance in optical, mechanical, and thermal properties through various analytical methods.