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Synthesis, Growth and characterization of organic nonlinear optical 3-(4-Fluorophenyl)-1-(4-methoxyphenyl) single crystal grown by vertical Bridgman technique
Organic Electronics ( IF 2.7 ) Pub Date : 2019-10-22 , DOI: 10.1016/j.orgel.2019.105516
K. Arunkumar , S. Kalainathan

Single crystal of organic nonlinear optical material 3-(4-Fluorophenyl)-1-(4-methoxyphenyl) (FMP) was grown with the help of single walled glass ampoule in vertical Bridgman technique. The structural analysis confirmed the cell parameters and crystallinity of the single crystal with the space group of Pbca. The presences of desired components in the single crystal were confirmed by the NMR spectrum. The lower cut off wavelength of the single crystal was observed at 423 nm from the absorption spectra of the single crystal. The electrical property of grown single crystal was studied by measuring the dielectric constant and dielectric loss. The surface hardness test and amount of damage caused by incident laser beam on the surface of the single crystal determined the mechanical strength of the crystal. The FMP single crystal was found to exhibit negative photoconductive nature. The etch pit density and non-linear optical properties were determined by etching measurement and by observation of green light in Kurtz-Perry powder method. The grown crystal was studied thermal stability and melting point with TGA-DSC analysis.



中文翻译:

垂直布里奇曼技术生长的有机非线性光学3-(4-氟苯基)-1-(4-甲氧基苯基)单晶的合成,生长和表征

在垂直布里奇曼技术的帮助下,借助于单壁玻璃安瓿瓶生长了有机非线性光学材料3-(4-氟苯基)-1-(4-甲氧基苯基)(FMP)的单晶。结构分析证实了具有Pbca空间群的单晶的晶胞参数和结晶度。通过NMR光谱证实了单晶中所需组分的存在。从单晶的吸收光谱在423nm处观察到单晶的较低截止波长。通过测量介电常数和介电损耗研究了生长的单晶的电性能。表面硬度测试和入射激光束在单晶表面上造成的损坏程度决定了晶体的机械强度。发现FMP单晶表现出负的光电导性质。蚀刻坑密度和非线性光学性质通过蚀刻测量和通过在Kurtz-Perry粉末法中观察绿光来确定。用TGA-DSC分析研究了生长的晶体的热稳定性和熔点。

更新日期:2019-10-23
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