Early stage nucleation of ZnO nanorods by galvanic-cell-based approach
[Display omitted] •In galvanic method, the nucleation of the ZnO nanorods finishes after two minutes.•There exists a condensed ZnO layer underneath of ZnO nanorods.•To improve, a combination of the galvanic and hydrothermal synthesis is demonstrated. The galvanic-cell-based synthesis is considered a...
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Published in | Materials letters Vol. 230; pp. 77 - 79 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
01.11.2018
Elsevier BV |
Subjects | |
Online Access | Get full text |
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Summary: | [Display omitted]
•In galvanic method, the nucleation of the ZnO nanorods finishes after two minutes.•There exists a condensed ZnO layer underneath of ZnO nanorods.•To improve, a combination of the galvanic and hydrothermal synthesis is demonstrated.
The galvanic-cell-based synthesis is considered as an effective method for the seed-layer free preparation of ZnO nanorods. However, the nucleation stage of the growth which decides the final structures of ZnO nanorods is still not well-understood. Here we show that the nucleation is almost completed after two minutes of growth and the galvanic-cell-based method results in a condensed ZnO layer beneath of the ZnO nanorods. Beyond this finding, we propose a hybrid approach that combines the galvanic and hydrothermal growth to fabricate the condensed-layer free, well-separated ZnO nanorods that might be compatible for the ZnO-based devices. |
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ISSN: | 0167-577X 1873-4979 |
DOI: | 10.1016/j.matlet.2018.07.097 |