کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1330742 | 1500127 | 2012 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Growth of high aspect ratio ZnO nanorods by solution process: Effect of polyethyleneimine Growth of high aspect ratio ZnO nanorods by solution process: Effect of polyethyleneimine](/preview/png/1330742.png)
High aspect ratio ZnO nanorods were grown vertically on ZnO seed layer deposited silicon, glass and polyimide substrates by a solution process at low-temperature using zinc nitrate hexahydrate and hexamethylenetetramine. We studied the effect of polyethlyeneimine (PEI) on the growth of ZnO nanorods. It was found that PEI has a prominent effect on controlling the aspect ratio of ZnO nanorods in solution. The morphological and photoluminescence properties of the ZnO nanorods were also examined with varying the growth temperature (60–90 °C).
With addition of polyehyleneimine (PEI) high aspect-ratio ZnO nanorods were grown. It is believed that during ZnO nanorods growth, protonized form of linear PEI molecules inhibits the lateral growth by being adsorbed on non-polar lateral planes. Thus the vertical growth is favored.Figure optionsDownload as PowerPoint slideHighlights
► A controlled growth of high aspect ratio ZnO nanorods on different substrates.
► A prominent effect of polyethlyeneimine (PEI) on controlling the aspect ratio of ZnO nanorods in solution.
► Precursor concentration and growth temperature effect for various aspect ratio ZnO nanorods.
Journal: Journal of Solid State Chemistry - Volume 189, May 2012, Pages 25–31