کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1787755 | 1023452 | 2011 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fabrication, characterization and growth mechanism of heterostructured zinc oxide nanostructures via solution method Fabrication, characterization and growth mechanism of heterostructured zinc oxide nanostructures via solution method](/preview/png/1787755.png)
Differently shaped zinc oxide nanostructures were synthesized at ˜90 °C by refluxing process at different refluxing times (6, 12, 18 and 24 h) via the solution method using zinc acetate dihydrate as a source material and hydrazine hydrate. Heterostructures like needle shaped nanorods, flowers composed with nanorods, pencil like zinc oxide nanorods and square shaped zinc oxide micro-particles were observed using field emission electron microscopy (FE-SEM) as functions of varying refluxing time of the solution of zinc acetate dihydrate (Zn(Ac)2 2H2O) and hydrazine hydrate (N2H4 H2O). A high-resolution transmission electron microscopic (HR-TEM) observation supports FE-SEM observations and revealed that nanostructures grew along [0001] direction with an ideal lattice fringe distance of 0.52 nm, same as that of bulk ZnO. X-ray diffraction patterns present good crystalline properties and that the obtained powder is zinc oxide without any other impurities. The compositional study, FTIR spectroscopic measurement showed a standard peak of zinc oxide at 518 cm−1. In addition to this, we also proposed the chemical growth mechanism of different types of grown zinc oxide nanostructures.
Journal: Current Applied Physics - Volume 11, Issue 3, May 2011, Pages 334–340