Red light emitting nano-PVP fibers that hybrid with Ag@SiO2@Eu(tta)(3)phen-NPs by electrostatic spinning method
Red light emitting nano-PVP fibers that hybrid with Ag@SiO2@Eu(tta)(3)phen-NPs by electrostatic spinning method
复制标题
静电纺丝法与Ag@SiO2@Eu(tta)(3)phen-NPs杂化的红光纳米PVP纤维
DOI：
10.1016/j.optmat.2018.02.014
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发表时间：
2018
影响因子：
3.9
通讯作者：
Belfiore Laurence A.
中科院分区：
文献类型：
--
作者：
Zhang Xiaolin;Tang Jianguo;Li Haidong;Wang Yao;Wang Xinzhi;Wang Yanxin;Huang Linjun;Belfiore Laurence A.
本工作采用静电纺丝法制备了Ag@SiO2@Eu（tta）3 phen纳米粒子（Ag@SiO2@Eu（tta）3 phen-NPs）掺杂的纳米PVP红光纤维。对于Ag@SiO2@Eu（tta）3 phen-NPs，为了获得最大的发光强度，对SiO2的厚度进行了优化，结果表明SiO2的最佳厚度为20 nm。Ag@SiO2@Eu（tta）3 phen-NP的相应发光强度（612 nm）比纯Eu（tta）3 phen配合物增强了10倍，这表明在SiO2厚度为20 nm时，Ag@SiO2的局域表面等离子体共振（LSPR）效应表现出最高的增强发光性能。荧光显微镜下，PVP纤维发出明亮的红光，证明PVP聚合物提供的微环境完全适合荧光复合材料。
This work demonstrated red light emitting nano-PVP fibers that incorporated with novel three-layer nanostructure of Ag@SiO2@Eu(tta)3phen nanoparticles (Ag@SiO2@Eu(tta)3phen-NPs), and the hybrid nano-PVP fibers were fabricated via a remarkably simple electrostatic spinning method. For Ag@SiO2@Eu(tta)3phen-NPs, the thickness of SiO2is optimized to obtain the maximum luminescent intensity, as results, the optimized thickness of SiO2is 20 nm. And the corresponding luminescent intensity (612 nm) of the Ag@SiO2@Eu(tta)3phen-NPs is enhanced up to 10 times compared with the pure Eu(tta)3phen complex, which indicates that with 20 nm SiO2thickness, the localized surface plasmon resonance (LSPR) effect of Ag@SiO2exhibits highest performance for enhancing luminescence. Moreover, the luminescent PVP fibers emit bright red light under the fluorescence microscope, which definitely confirms that the microenvironment provided by PVP polymer is absolutely suitable for the fluorescent composites.