![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
ABSTRACT
Good quality Phthalic acid single crystals were grown in aqueous solutions of ammonium oxalate and ammonium bromide by slow evaporation solution growth method. Single crystal X-ray diffraction of PA1 and PA2 was analysed in this article. The functional groups of crystals were identified and confirmed by FT-IR analysis. UV-Vis absorption spectrum was analysed, which shows that least absorbance in the entire visible region and the value of an optical band gap was determined. The second harmonic generation efficiency of the crystals was determined by Kurtz’s powder method, which confirms non-linear optical property of the title material. The thermal stability and melting point of PA1 and PA2 crystals were found by the TGA and DTA thermal analysis. The kinetic parameters were calculated using Coats and Redfern method. The dielectric study was carried out by determining dielectric constant, dielectric loss and ac conductivity using LCR metre and the variation of these parameters with frequency and temperature was analysed.
Acknowledgments
The author expresses thanks to the Department of Chemistry, IIT-Madras, Loyola College, Chennai, St. Joseph’s College, Trichirappalli and B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai for providing various characterisation data.
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Notes on contributors
M. Suresh Kumar
Mr. M. Suresh Kumar is working as an assistant professor, in the department of Physics, Academy of Maritime Education and Training and also ding his doctoral degree in the department of physics, B.S. Abdur Rahman crescent Institute of Science and Technology, Chennai. His field of interest include Materials science and crystal growth.
G. V. Vijayaraghavan
Dr. G. V. Vijayaraghavan, is currently working as an Professor in the department of Physics, B.S. Abdur Rahman crescent Institute of Science and Technology, Chennai. He had published many research papers in well reputed international journal. And he currently working on non linear optical materials.
K. Rajesh
Dr. K. Rajesh is an Assistant professor working in Academy of Maritime education and training who has a vast experience in the Materials science and non linear optical Materials. He has published more than 35 articles in renewed journals.
S. Krishnan
Dr. S. Krishnan is working as an associate professor in RKM Vivekananda college, chennai and his field of interest are crystals in photonics and optoelectronics.