有机非线性光学晶体的简易生长和光学行为:4-溴-2-甲基苯腈

IF 0.8 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
P. Preeda, R. Ganapathi Raman, P. Sakthivel, Arun Thirumurugan, Suresh Sagadevan
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引用次数: 0

摘要

采用缓慢蒸发法在室温下制备了 4-溴-2-甲基苯腈单有机非线性光学晶体。验证了所制备晶体的结晶性,并给出了晶体的单胞特征:a = 4.08 Å,b = 6.61 Å,c = 28.93 Å,α = 90°,β = 90°,γ = 90°。利用傅立叶变换红外光谱和傅立叶变换拉曼光谱确定了晶体的官能团。紫外可见光学研究显示紫外截止波长为 221.6 nm,利用陶氏曲线图估算出生长晶体的带隙为 4.87 eV。光致发光光谱显示出紫色和红色发射。在低频下可获得较高的介电常数。TG/DTA 曲线显示,生长出的晶体在 125.59 °C以下都很稳定。库尔兹-佩里粉末技术被用来确认二次谐波发生的性质。利用琼脂扩散法测定了生长出的 4B2MBN 晶体的抗菌性能。图表摘要
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A facile growth, optical behavior of organic nonlinear optical crystal: 4-bromo-2-methylbenzonitrile
4-bromo-2-methylbenzonitrile single organic nonlinear optical crystal was prepared at room temperature by the slow evaporation method. The grown crystal’s crystalline nature was verified, and the unit cell characteristics are provided as a = 4.08 Å, b = 6.61 Å, c = 28.93 Å, α = 90°, β = 90°, γ = 90°. The functional groups of the crystal were identified using the FTIR and FT-Raman spectra. UV–Vis optical studies show UV cutoff wavelength at 221.6 nm, and the bandgap of the grown crystal was estimated at 4.87 eV using the Taucs’ plot. Photoluminescence spectra exhibited violet and red emissions. A high dielectric constant was received at a low frequency. The TG/DTA curve shows that the grown crystal was stable up to 125.59 °C. The Kurtz-Perry powder technique was applied to confirm the Second Harmonic Generation’s nature. By using the agar diffusion method, the antibacterial property of the grown 4B2MBN crystal was determined. Graphical abstract
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来源期刊
MRS Advances
MRS Advances MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
1.50
自引率
0.00%
发文量
184
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