Sequential Nucleation Growth of ZnO Nanoflowers
| Autor: | Rodrigo González López, Gustavo Rodríguez, Ana María Arato Tovar, Nora Elizondo V., Víctor Manuel Castaño, Dora Irma Martínez Delgado, Francisco Javier Vázquez Rodríguez, Ernesto Torres López |
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| Rok vydání: | 2018 |
| Předmět: |
Diffraction
Materials science Nanostructure Scanning electron microscope Biomedical Engineering Nucleation 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Decomposition Rod 0104 chemical sciences Chemical engineering Nanorod Crystallite 0210 nano-technology |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 2150-5578 |
| Popis: | The morphological characteristics of ZnO nanostructures were systematically studied from dense rods to flower-like shapes. The ZnO flower-like samples were prepared by direct decomposition of a Zn(OH)4 2– precursor and by the sequential nucleation and growth method consisted of a multistep synthesis of complex nanostructured films. Condition-dependent experiments systematically were compared as to reveal the formation and detailed growth process of ZnO nanosized crystallites and aggregates. X-ray diffraction, transmission and scanning electron microscopy indicated that the precursor, solution basicity, reaction temperature and pressure as well as reaction time, were responsible for the variations of the morphologies. ZnO flower-like and large nanorods of exceptional uniformity, orientation alignment, and optical properties have been produced in this work. Several synthesis steps are needed to produce oriented nanostructures that are more complex than simple nanorod architectures. These structures have potential applications in building functional electronics devices and optoelectronic properties. |
| Databáze: | OpenAIRE |
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