Highly Textured Seed Layers for the Growth of Vertically Oriented ZnO Nanorods
One dimensional ZnO nanostructures prepared by favorable and simple solution growth methods are at the forefront of this research. Vertically oriented ZnO nanorods with uniform physical properties require high-quality seed layers with a narrow size distribution of the crystallites, strong c-axis ori...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-10-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/9/11/566 |
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| author | Nikola Basinova Ondrej Cernohorsky Jan Grym Sarka Kucerova Hana Faitova Roman Yatskiv Jan Vanis Jozef Vesely Jaroslav Maixner |
| author_facet | Nikola Basinova Ondrej Cernohorsky Jan Grym Sarka Kucerova Hana Faitova Roman Yatskiv Jan Vanis Jozef Vesely Jaroslav Maixner |
| author_sort | Nikola Basinova |
| collection | DOAJ |
| description | One dimensional ZnO nanostructures prepared by favorable and simple solution growth methods are at the forefront of this research. Vertically oriented ZnO nanorods with uniform physical properties require high-quality seed layers with a narrow size distribution of the crystallites, strong c-axis orientation, and low surface roughness and porosity. It has been shown that high quality seed layers can be prepared by the sol−gel process. The sol−gel process involves three essential steps: preparation of the sol, its deposition by dip coating, and thermal treatment comprising preheating and annealing. We put emphasis on the investigation of the heat treatment on the properties of the seed layers and on the vertical alignment of the nanorods. It was demonstrated that for the vertical alignment of the nanorods, the preheating step is crucial and that the temperatures reported in the literature have been too low. With higher preheating temperatures, conditions for the vertical alignment of the nanorods were achieved in both investigated annealing atmospheres in air and in argon. |
| first_indexed | 2024-04-11T12:54:08Z |
| format | Article |
| id | doaj.art-8460103f1e40485bb1ecda3ccebec908 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-11T12:54:08Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-8460103f1e40485bb1ecda3ccebec9082022-12-22T04:23:08ZengMDPI AGCrystals2073-43522019-10-0191156610.3390/cryst9110566cryst9110566Highly Textured Seed Layers for the Growth of Vertically Oriented ZnO NanorodsNikola Basinova0Ondrej Cernohorsky1Jan Grym2Sarka Kucerova3Hana Faitova4Roman Yatskiv5Jan Vanis6Jozef Vesely7Jaroslav Maixner8Institute of Photonics and Electronics, Czech Academy of Sciences, 182 51 Prague, Czech RepublicInstitute of Photonics and Electronics, Czech Academy of Sciences, 182 51 Prague, Czech RepublicInstitute of Photonics and Electronics, Czech Academy of Sciences, 182 51 Prague, Czech RepublicInstitute of Photonics and Electronics, Czech Academy of Sciences, 182 51 Prague, Czech RepublicInstitute of Photonics and Electronics, Czech Academy of Sciences, 182 51 Prague, Czech RepublicInstitute of Photonics and Electronics, Czech Academy of Sciences, 182 51 Prague, Czech RepublicInstitute of Photonics and Electronics, Czech Academy of Sciences, 182 51 Prague, Czech RepublicFaculty of Mathematics and Physics, Charles University, 121 16 Staré Město, Czech RepublicInstitute of Chemical Technology Prague, 166 28 Prague, Czech RepublicOne dimensional ZnO nanostructures prepared by favorable and simple solution growth methods are at the forefront of this research. Vertically oriented ZnO nanorods with uniform physical properties require high-quality seed layers with a narrow size distribution of the crystallites, strong c-axis orientation, and low surface roughness and porosity. It has been shown that high quality seed layers can be prepared by the sol−gel process. The sol−gel process involves three essential steps: preparation of the sol, its deposition by dip coating, and thermal treatment comprising preheating and annealing. We put emphasis on the investigation of the heat treatment on the properties of the seed layers and on the vertical alignment of the nanorods. It was demonstrated that for the vertical alignment of the nanorods, the preheating step is crucial and that the temperatures reported in the literature have been too low. With higher preheating temperatures, conditions for the vertical alignment of the nanorods were achieved in both investigated annealing atmospheres in air and in argon.https://www.mdpi.com/2073-4352/9/11/566zinc oxidenanorodssol–gelseed layerpreheatingannealing |
| spellingShingle | Nikola Basinova Ondrej Cernohorsky Jan Grym Sarka Kucerova Hana Faitova Roman Yatskiv Jan Vanis Jozef Vesely Jaroslav Maixner Highly Textured Seed Layers for the Growth of Vertically Oriented ZnO Nanorods Crystals zinc oxide nanorods sol–gel seed layer preheating annealing |
| title | Highly Textured Seed Layers for the Growth of Vertically Oriented ZnO Nanorods |
| title_full | Highly Textured Seed Layers for the Growth of Vertically Oriented ZnO Nanorods |
| title_fullStr | Highly Textured Seed Layers for the Growth of Vertically Oriented ZnO Nanorods |
| title_full_unstemmed | Highly Textured Seed Layers for the Growth of Vertically Oriented ZnO Nanorods |
| title_short | Highly Textured Seed Layers for the Growth of Vertically Oriented ZnO Nanorods |
| title_sort | highly textured seed layers for the growth of vertically oriented zno nanorods |
| topic | zinc oxide nanorods sol–gel seed layer preheating annealing |
| url | https://www.mdpi.com/2073-4352/9/11/566 |
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