کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5186069 | 1381095 | 2007 | 5 صفحه PDF | دانلود رایگان |
Polyethylene oxide-ZnO (PEO-ZnO) composite fibers were prepared by electrospinning technique. The structural and optical properties were investigated using scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, and photoluminescence (PL). Results indicated that PEO passivated the interface defects and quenched the visible emission of ZnO quantum dots by forming O-Zn bonds with ZnO nanoparticles. To investigate the influence of electrospinning voltage on the PL of the composite fibers, the electrospinning voltage was adjusted from 12 to 18Â kV. It was shown that the passivation effect of PEO could be enhanced by increasing the electrospinning voltage, and the fibers prepared at higher voltage exhibited more intense ultraviolet emission.
Journal: Polymer - Volume 48, Issue 6, 8 March 2007, Pages 1459-1463