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Core–sheath polymer nanofibers with optoelectronic materials as the sheath and easily spinnable polymer as the core were prepared by co-electrospinning. Three prototypical systems of polystyrene/poly(p-phenylene vinylene) (PS/PPV), poly(vinyl alcohol)/poly(p-phenylene vinylene) (PVA/PPV) and polystyrene/tris(8-quinolinolato) aluminum (PS/Alq 3 ) were investigated. The fluorescence microscopy...
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