Controlling the deposition of light‐emitting nanofibers/microfibers by the electrospinning of a poly(p‐phenylene vinylene) polyelectrolyte precursor

Abstract

Poly(p-phenylene vinylene) (PPV) nanofibers with disordered, helical, and yarn morphologies were controllably prepared by the electrospinning of a cationic polyelectrolyte precursor in an ethanol solution followed by thermal conversion. Through the tuning of the precursor solution properties and processing variables, the factors affecting the morphology of PPV fibers were studied. The diameter of these PPV nanofibers decreased with a decrease in the precursor concentration, and gradual blueshifts and changes in the relative intensity of the vibronic components in photoluminescence spectra were observed. These nanofibers with excellent fluorescent properties are potentially interesting for many applications such as micro-and nano-optoelectronic devices and systems.

Organic Fluorescent Nanofibers and Sub-Micrometer Rods

“…Polymers can be intrinsically fluorescent due to an extended conjugated system Kang et al, 2007;Long et al, 2009;Samitsu et al, 2009;Xin et al, 2009;Zhang et al, 2007;Zhao et al, 2007;Zhu et al, 2009). A good example is that of poly(phenylene vinylene) (PPV) derivatives, which emit from blue to yellow-green.…”

Active polymer nanofibers for photonics, electronics, energy generation and micromechanics

“…Spectacular examples have been reported with copolymers [205,206] or with blends of polymers with fluorescent oligomers which spontaneously form core-sheath nanofibers upon electrospinning [207]. Conjugated polymer nanofibers demonstrated in recent years have been made of PPV [26][27][28] derivatives such as MEH-PPV [9][10][11][12][13][14][15][16][17][18][19], fluorene-based materials such as PFO [9,60], poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-Published in Progress in Polymer Science 43, 48-95, doi: 10.1016/j.progpolymsci.2014.10.001 (2015).…”

“…Published in Progress in Polymer Science 43, 48-95, doi: 10.1016/j.progpolymsci.2014.10.001 (2015). 28 Polymer nanofibers based on conjugated polymers could be also produced by nanofluidics, exploiting the spontaneous or pressure-driven penetration of polymer solutions into nanochannels.…”

Light‐Emitting Electrospun Nanofibers for Nanophotonics and Optoelectronics

“…Finally, PPV nanofibers and composite nanofibers made of PPV and inorganic nanoparticles have also been produced by electrospinning of a PPV soluble precursor, followed by thermal conversion 72–78…”