Poly p-phenylene vinylene Nano Fibers

The morphology can be controlled using poly(vinyl alcohol) (PVA)/ PPV precursor polymers. The morphology of fibers can be characterized by scanning electron microscopy and fluorescence microscopy. The fluorescence spectra of PVA/PPV nano fibers and of composite nano fibers made from PPV/MEH-PPV exhibit an appreciable blue shift, a stronger intensity of fluorescence, and a higher surface photovoltage in comparison to bulk material.  

it is possible to fabricate nano fibers with a fluorescence from yellowish green to blue. The nano fibers have a potential application in optical and electronic devices. 

Nanotubes made from PPV exhibit markedly different fluorescence decay times in comparison to bulk samples.  

Carbon nanotubes are of potential interest as electron guns, in flat panel displays. Carbon nanotubes exhibit many desirable properties for improved field emission  

Instead of carbon nanotubes, graphitic carbonized PPV nanotubes prepared in an alumina membrane have been used. Further, nanotubes embedded with gold nanoparticles were used for the fabrication of field emitting devices.  

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