ZnS nanocrystals have been synthesized in polymer matrices. Absorption
spectrum and small-angle X-ray scattering studies showed that the size of
the ZnS nanoparticles wasca. 3.0 nm. Electron diffraction results
showed that the ZnS nanocrystals have hexagonal structure. A ZnS
nanoparticle/polymer composite as an emitter was used to fabricate a
single layer structure electroluminescent device with a low turn-on
voltage (≤4 V) and blue electroluminescence was observed at room
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