Micro-Structures Produced by Crystal Growth from Located Nuclei and Their Transfer Aiming at Functional Surfaces
Hydrothermal processes can produce regular micro-/nano-structures easily; but their placement or position is difficult to control, and the obtainable structures tend to be random. For controlling the crystal growth, two types of definite and regular structures were obtained. The first ones were ZnO...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Journal of Manufacturing and Materials Processing |
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| Online Access: | https://www.mdpi.com/2504-4494/4/4/105 |
| _version_ | 1797548626296176640 |
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| author | Nobuyuki Moronuki Renato Serizawa |
| author_facet | Nobuyuki Moronuki Renato Serizawa |
| author_sort | Nobuyuki Moronuki |
| collection | DOAJ |
| description | Hydrothermal processes can produce regular micro-/nano-structures easily; but their placement or position is difficult to control, and the obtainable structures tend to be random. For controlling the crystal growth, two types of definite and regular structures were obtained. The first ones were ZnO urchin-like structures synthesized from located ZnO particles as the nuclei. These structures were found to work as gas sensors utilizing a wide surface area. The second one was a vertically aligned TiO<sub>2</sub> nanorod array synthesized on a fluorine-doped tin oxide substrate that has a similar lattice constant to rutile TiO<sub>2</sub>. Super-hydrophobicity after ultraviolet irradiation was then examined. Finally, the synthesized TiO<sub>2</sub> array was peeled off and transferred onto a resin sheet. We determined that the substrate could be subjected to repeated hydrothermal synthesis, thereby demonstrating the reusability of the substrate. These results demonstrate the applicability of these processes for industrial applications. |
| first_indexed | 2024-03-10T15:03:16Z |
| format | Article |
| id | doaj.art-999e2b799df3497492009a0fd3674bc9 |
| institution | Directory Open Access Journal |
| issn | 2504-4494 |
| language | English |
| last_indexed | 2024-03-10T15:03:16Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Manufacturing and Materials Processing |
| spelling | doaj.art-999e2b799df3497492009a0fd3674bc92023-11-20T20:02:10ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942020-11-014410510.3390/jmmp4040105Micro-Structures Produced by Crystal Growth from Located Nuclei and Their Transfer Aiming at Functional SurfacesNobuyuki Moronuki0Renato Serizawa1Faculty of Systems Design, Tokyo Metropolitan University, Tokyo 191-0065, JapanGraduate School of Systems Design, Tokyo Metropolitan University, Tokyo 191-0065, JapanHydrothermal processes can produce regular micro-/nano-structures easily; but their placement or position is difficult to control, and the obtainable structures tend to be random. For controlling the crystal growth, two types of definite and regular structures were obtained. The first ones were ZnO urchin-like structures synthesized from located ZnO particles as the nuclei. These structures were found to work as gas sensors utilizing a wide surface area. The second one was a vertically aligned TiO<sub>2</sub> nanorod array synthesized on a fluorine-doped tin oxide substrate that has a similar lattice constant to rutile TiO<sub>2</sub>. Super-hydrophobicity after ultraviolet irradiation was then examined. Finally, the synthesized TiO<sub>2</sub> array was peeled off and transferred onto a resin sheet. We determined that the substrate could be subjected to repeated hydrothermal synthesis, thereby demonstrating the reusability of the substrate. These results demonstrate the applicability of these processes for industrial applications.https://www.mdpi.com/2504-4494/4/4/105self-organizing processmicrostructureself-assemblycrystal growthnuclei |
| spellingShingle | Nobuyuki Moronuki Renato Serizawa Micro-Structures Produced by Crystal Growth from Located Nuclei and Their Transfer Aiming at Functional Surfaces Journal of Manufacturing and Materials Processing self-organizing process microstructure self-assembly crystal growth nuclei |
| title | Micro-Structures Produced by Crystal Growth from Located Nuclei and Their Transfer Aiming at Functional Surfaces |
| title_full | Micro-Structures Produced by Crystal Growth from Located Nuclei and Their Transfer Aiming at Functional Surfaces |
| title_fullStr | Micro-Structures Produced by Crystal Growth from Located Nuclei and Their Transfer Aiming at Functional Surfaces |
| title_full_unstemmed | Micro-Structures Produced by Crystal Growth from Located Nuclei and Their Transfer Aiming at Functional Surfaces |
| title_short | Micro-Structures Produced by Crystal Growth from Located Nuclei and Their Transfer Aiming at Functional Surfaces |
| title_sort | micro structures produced by crystal growth from located nuclei and their transfer aiming at functional surfaces |
| topic | self-organizing process microstructure self-assembly crystal growth nuclei |
| url | https://www.mdpi.com/2504-4494/4/4/105 |
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