Flexible special-structured Janus nanofiber synchronously endued with tunable trifunctionality of enhanced photoluminescence, electrical conductivity and superparamagnetism

  • Xue Xi
  • Qianli Ma
  • Xiangting Dong
  • Dan Li
  • Wensheng Yu
  • Jinxian Wang
  • Guixia Liu


We report a facile and highly-effective method to assemble luminescent–magnetic–electrical tri-functionalities into the special-structured Janus nanofibers. Novel and brand-new flexible special-structured [coaxial nanocable]//[nanofiber] Janus nanofibers synchronously endued with tuned and enhanced luminescent–magnetic–electrical trifunctionality have been prepared via electrospinning technology using a homemade coaxis//monoaxis spinneret for the first time. Each special-structured Janus nanofiber consists of a coaxial nanocable made of Fe3O4/PVP core and Eu(BA)3phen/PVP shell as a half side with luminescent–magnetic bifunctionality and polyaniline (PANI)/PVP nanofiber as the other half side with electrically conductive functionality. The special and novel Janus nanofiber not only can guarantee effective separation of Fe3O4 nanoparticles (NPs) and PANI from rare earth complex, but also ensure the continuity of PANI in the matrix. It is satisfactorily found that the luminescent intensity of the novel special-structured Janus nanofibers respectively reaches up to 10 and 22 times higher than those of counterpart conventional [nanofiber]//[nanofiber] Janus nanofibers and composite nanofibers owing to its peculiar nanostructure. Compared with the counterpart conventional Janus nanofibers of two independent partitions, coaxial nanocable is used as one side of the special-structured Janus nanofiber instead of nanofiber, and three independent partitions are successfully realized in the special-structured Janus nanofiber, thus the interferences among various functions are further reduced, leading to the fact that more excellent multifunctionalities can be obtained. The novel Janus nanofibers possess excellent fluorescence, superparamagnetism and electric conductivity, and further, these performances can be respectively tunable via modulating the respective Eu(BA)3phen, Fe3O4 and PANI contents. The design philosophy and the construction technique for the special-structured Janus nanofibers are of universal significance for the fabrication of other multifunctional Janus nanofiber of various performances.



This work was financially supported by National Natural Science Foundation of China (51573023, 50972020), Natural Science Foundation of Jilin Province of China (20170101101JC), Industrial Technology Research and Development Project of Jilin Province Development and Reform Commission (2017C051), Science and Technology Research Planning Project of the Education Department of Jilin Province during the 13th Five-Year Plan Period (JJKH20170608KJ), Youth Foundation of Changchun University of Science and Technology (No. XQNJJ-2016-01).

Compliance with ethical standards

Conflict of interest

There are no conflicts of interest to declare.


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Authors and Affiliations

  1. 1.Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin ProvinceChangchun University of Science and TechnologyChangchunChina

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