7 research outputs found
Analysis on the effect of ZnO on Carbon nanotube by spray pyrolysis method
Background: ZnO/CNT nanocomposites were prepared using Zinc acetate source materials and with the assistance
of copper plate, glycine and sugar solution. The combined behavior between these two materials may give rise to
the production of advanced materials with a wide range of applications in electronics and optoelectronics.
Methods: The ZnO-CNT nanostructures are successfully prepared by simple perfume spray pyrolysis method on
copper substrate. The possible growth mechanism of ZnO-CNT nanocrystals formation by this method has been
tried to explore the sensor and optical properties has been demonstrated.
Results: The as-synthesized ZnO-CNT nanostructures were characterized using the scanning electron microscopy (SEM),
transmission electron microscopy (TEM) and X-ray diffraction (XRD) pattern measured with Cu Kα radiation. Studies of the
morphologies of the ZnO-coated CNTs revealed no significant change in the internal structures single walled graphite
sheets and the diameters of the CNTs, but the ZnO appeared to form a layer of thinfilm single crystalline particles
attaching to the surface of the nanotubes. The photoluminescence (PL) measurements excited by the 380 nm were done
at room temperature. CNTs are easy to be entangled and agglomerate due to their long length and low diffusive
mobility in base fluids.
Conclusion: The lower mobility was found to occur for the ZnO/CNT composite where a linear sensitivity behavior was
measured and it reaches high at the temperature of 200 °C. The samples luminescence is dominated by well-structured ultraviolet
band emission and almost no deep level emission was observed, revealing a high optical quality of the produced structures