Single flexible nanofiber to achieve simultaneous photoluminescence–electrical conductivity bifunctionality

Abstract

In order to develop new-type multifunctional composite nanofibers, Eu(BA)3 phen/PANI/PVP bifunctional composite nanofibers with simultaneous photoluminescence and electrical conductivity have been successfully fabricated via electrospinning technology. Polyvinyl pyrrolidone (PVP) is used as a matrix to construct composite nanofibers containing different amounts of Eu(BA)3 phen and polyaniline (PANI). X-Ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM), fluorescence spectroscopy and a Hall effect measurement system are used to characterize the morphology and properties of the composite nanofibers. The results indicate that the bifunctional composite nanofibers simultaneously possess excellent photoluminescence and electrical conductivity. Fluorescence emission peaks of Eu(3+) ions are observed in the Eu(BA)3 phen/PANI/PVP photoluminescence-electrical conductivity bifunctional composite nanofibers. The electrical conductivity reaches up to the order of 10(-3) S/cm. The luminescent intensity and electrical conductivity of the composite nanofibers can be tuned by adjusting the amounts of Eu(BA)3 phen and PANI. The obtained photoluminescence-electrical conductivity bifunctional composite nanofibers are expected to possess many potential applications in areas such as microwave absorption, molecular electronics, biomedicine and future nanomechanics. More importantly, the design concept and construction technique are of universal significance to fabricate other bifunctional one-dimensional naonomaterials.

Recent advances in electrospun magnetic nanofibers and their applications

“…Among them, electrospun functional nanofibers are nanofibers composed of metals, metal oxides, and sulfates, as well as ceramics or composites of such materials with organic polymers. They display properties such as fluorescence, 7 electroluminescence, 8 conductivity, [9][10][11][12] photovoltaic effects, 13 photocatalytic effects 14,15 and ferromagnetism 16 that can be applied in optical and electronic sensors, 13 lithium ion batteries, 17 fuel cells, 18 and solar cells, 19 as well as energy harvesting 20 and storage systems. 21…”

Physicochemical Characterization and Cell Adhesion Evaluation of Poly-ε-Caprolactone/BNNT Nanofibers Produced through Electrospinning Process

“…The huge abundance of these hybrid structures and the possibility to combine different properties of each one assure the continued progress that will make it possible to overcome economic and technical limitations in current technology [1]. extracellular matrices [7], carriers for topical/transdermal drug delivery [8], electrical and optical applications [9,10], sensors and high performance structures [11,12] .…”

Direct electrospinning construction of nanocables with electrical conductive-magnetic core and insulative-photoluminescent sheath

“…27 By using PVP as template, onedimensional nanomaterials with various morphologies have been successfully prepared via electrospinning technique, such as nanobers, [28][29][30] hollow nanobers, 31,32 nanobelts, 33 nanocables, 34 etc. And some preparations of one-dimensional luminescentelectrical-magnetic multifunctional materials have been reported by using the above method, such as, magnetic-uorescent bifunctional composite nanobers, 35 photoluminescenceelectrical conduction bifunctional composite nanobers, 36 as well as photoluminescence-electricity-magnetism trifunctional composite nanobers, 37 composite nanobelts. 27 On the basis of these studies, the nanocomposites suffered heavy losses in uorescent intensity when Fe 3 O 4 NPs and PANI were directly blended with the rare earth luminescent compounds.…”