Facile Conjugation Electrospinning Construction of Core-shell Structured Nanofiber Yarns Displaying Synchronous Up-conversion and Conduction Bi-functionality

2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO) Pub Date : 2022-08-08 DOI:10.1109/3M-NANO56083.2022.9941643

Yuqi Sheng, H. Qi, Liu Yang, Wensheng Yu, Guixia Liu, Xiang-ting Dong

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Abstract

Up-conversion luminescent-conductive bi-functional core-shell yarns (shorted as CSYs) were successfully synthesized utilizing conjugation electrospinning technology. This specially designed CSYs are composed of two kinds of electrospun fibers. The up-conversion luminescent electrospun fibers (ULEFs) containing NaYF4: Yb3+, Er3+ up-conversion luminescent nanoparticles (ULNPs) are located in the shell layer and conductive electrospun fibers (CEFs) containing polyaniline (PANI) composes the shell layer. The diameters of CSYs and the nanofibers therein are ca. $475\ \mu\mathrm{m}$ and 735.5±1.19 nm respectively. The EDS element mapping indicates obvious core-shell structure of the obtained CSYs. CSYs exhibit tunable up-conversion luminescent intensity and conductivity by modulating the doping mass of ULNPs and PANI respectively. CSYs synthesized in this work are one of the excellent candidates for intelligent fabrics, anti-counterfeiting materials and electrical devices. Additionally, the particular designing concept and the assembling mechanism of the CSYs are widely expanded to other poly-functional yarns.

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具有同步上转换和传导双功能的核-壳结构纳米纤维纱线的易共轭静电纺丝结构

利用共轭静电纺丝技术成功合成了上转换发光导电双功能芯壳纱(简称CSYs)。这种特殊设计的CSYs由两种静电纺纤维组成。含有NaYF4: Yb3+、Er3+的上转换发光纳米粒子(ULNPs)位于壳层，含有聚苯胺(PANI)的导电静电纺纤维(CEFs)构成壳层。CSYs及其纳米纤维的直径分别约为$475\ \mu\ mathm {m}$和735.5±1.19 nm。EDS元素映射表明所得到的CSYs具有明显的核壳结构。通过调节ULNPs和PANI的掺杂质量，CSYs具有可调谐的上转换发光强度和电导率。本工作合成的CSYs是智能织物、防伪材料和电气器件的优秀候选材料之一。此外，CSYs独特的设计理念和装配机理也被广泛推广到其他多功能纱线中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)

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