Synthesis and Controllable Growth Dynamics of Third Order Nonlinear Optical Material of 2-Amino-4-Methylpyridinium 2-Chloro 4-Nitro Benzoate Electro-Mechanical Investigation and Device Fabrication  

作　　者：Kuppan Venkatesan Lakshmanan Jothi Kuppan Venkatesan;Lakshmanan Jothi(PG and Research Department of Physics, Sri Vidya Mandir Arts and Science College, Uthangarai, India;Periyar University, Palkalai Nagar, Salem, India;PG and Research Department of Physics, Namakkal Kavignar Ramalingam Government Arts College for Women, Namakkal, India)

机构地区：[1]PG and Research Department of Physics, Sri Vidya Mandir Arts and Science College, Uthangarai, India [2]Periyar University, Palkalai Nagar, Salem, India [3]PG and Research Department of Physics, Namakkal Kavignar Ramalingam Government Arts College for Women, Namakkal, India

出　　处：《Journal of Minerals and Materials Characterization and Engineering》2021年第5期407-431,共25页矿物质和材料特性和工程（英文）

摘　　要：An organic nonlinear optical material 2-Amino-4-methylpyridinium 2-chloro 4-nitro benzoate (AMPCNB) was synthesized and large size single crystals were grown by slow evaporation solution growth method. Single crystal X-ray diffraction study showed that the title compound belongs to monoclinic crystal system with P2₁/n space group. A powder XRD study was performed to ascertain its phase. The UV–VIS-NIR study was performed to investigate the transparency window and lower cutoff wavelength of the compound, no absorption has been observed between 318 and 1100 nm. The third harmonic efficiency of the title compound has been studied using the Z-scan technique using continuous-wave Nd:YAG laser to confirm its saturable absorption and self-defocusing effect. The photo conducting and charge transport properties are analyzed using photoconductivity and dielectric measurements. Theoretical calculation of molecular polarizability, which is helpful in device fabrication, was carried out from Penn gap, Clausius-Mosotti equations and the obtained results were compared. Mechanical properties of the grown crystal were investigated by Vicker’s microhardness study.An organic nonlinear optical material 2-Amino-4-methylpyridinium 2-chloro 4-nitro benzoate (AMPCNB) was synthesized and large size single crystals were grown by slow evaporation solution growth method. Single crystal X-ray diffraction study showed that the title compound belongs to monoclinic crystal system with P2₁/n space group. A powder XRD study was performed to ascertain its phase. The UV–VIS-NIR study was performed to investigate the transparency window and lower cutoff wavelength of the compound, no absorption has been observed between 318 and 1100 nm. The third harmonic efficiency of the title compound has been studied using the Z-scan technique using continuous-wave Nd:YAG laser to confirm its saturable absorption and self-defocusing effect. The photo conducting and charge transport properties are analyzed using photoconductivity and dielectric measurements. Theoretical calculation of molecular polarizability, which is helpful in device fabrication, was carried out from Penn gap, Clausius-Mosotti equations and the obtained results were compared. Mechanical properties of the grown crystal were investigated by Vicker’s microhardness study.

关 键 词：Crystal Growth Single Crystal XRD Z-Scan Studies PHOTOCONDUCTIVITY Dielectric Measurements Mechanical Studies 

分 类 号：O62[理学—有机化学]