Ajit Phule » Публикация
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Опубликовано
2010-01-00
Опубликовано на SciPeople2012-05-04 09:02:24
ЖурналJournal of Applied Physics
Tailoring absorption and emission of light in dielectric polymer nanofluids of reinforced poly(vinylidene fluoride) with silver nanoparticles
Аннотация
Polymer nanofluids of polyvinylidene fluoride PVF2 containing 0–5 wt % Ag nanoparticles Ag
NPs are synthesized via a simple in situ caloric Ag+→Ag reaction in liquid N,N-dimethyl
formamide by sonication in hot conditions. An upright dielectric field on formation of a percolation
network over the electron donor Ag NPs and electron acceptor CF2 from an ordered -PVF2 tailors
light absorption 250–550 nm and green emission 520–620 nm of variable intensities, with a small
percolation threshold of 0.1 wt %Ag NPs. On higher Ag contents, the intensity drops rapidly in both
the absorption and emission roughly by an order of magnitude, following the percolation theory of
a hybrid dielectric composite. Results open scope of developing newer materials for optical sensors,
barcodes, energy transfer pairs, or light emitters.
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