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Fabrication of SiO2/PEGDA Inverse Opal Photonic Crystal with Fluorescence Enhancement Effects

机译:用荧光增强效应制备SiO2 / PEGDA逆蛋白石光子晶体的制备

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The present paper reports the fabrication of inverse opal photonic crystals (IOPCs) by using SiO_(2) spherical particles with a diameter of 300?nm as an opal photonic crystal template and poly(ethylene glycol) diacrylate (PEGDA) as an inverse opal material. Characteristics and fluorescence properties of the fabricated IOPCs were investigated by using the Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), reflection spectroscopy, and fluorescence microscopy. The results clearly showed that the IOPCs were formed comprising of air spheres with a diameter of ~270?nm. The decrease in size led to a decrease in the average refractive indexes from 1.40 to 1.12, and a remarkable stopband blue shift for the IOPCs was thus achieved. In addition, the obtained results also showed a fluorescence enhancement over 7.7-fold for the Fluor? 488 dye infiltrated onto the IOPCs sample in comparison with onto the control sample.
机译:本文通过使用直径为300Ω·Nm的SiO_(2)球形颗粒作为蛋白石光子晶体模板和聚(乙二醇)二丙烯酸酯(PEGDA)作为反相蛋白质材料,通过使用直径为300μm的球形光子颗粒制备反蛋白石光子晶体(IOPCs)的制备 。 通过使用傅里叶变换红外光谱(FTIR),扫描电子显微镜(SEM),X射线衍射(XRD),反射光谱和荧光显微镜来研究制造的IOPCS的特性和荧光性质。 结果清楚地表明,形成了IOPCs,其包含直径为约270μm的空气球。 尺寸的降低导致平均折射率从1.40到1.12的降低,因此实现了IOPCS的显着止动蓝色移位。 此外,所得结果还显示出氟超过7.7倍的荧光增强? 与对照样品相比,488染料渗透到IOPCS样品上。

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