Fabrication of vertically aligned ferromagnetic ZnO nanopillar arrays on sapphire substrates by polymer-assisted deposition
Vertically aligned ferromagnetic ZnO nanopillar arrays have been fabricated on single-crystal sapphire substrates through polymer-assisted deposition. X-ray diffraction and transmission electron microscopy analysis show that the arrays are ZnO hexagonal crystal structure along the c-axial direction....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2020-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5135332 |
| _version_ | 1819153408906493952 |
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| author | Jia Luo Hongtao Ren Xi Zhang Gang Xiang |
| author_facet | Jia Luo Hongtao Ren Xi Zhang Gang Xiang |
| author_sort | Jia Luo |
| collection | DOAJ |
| description | Vertically aligned ferromagnetic ZnO nanopillar arrays have been fabricated on single-crystal sapphire substrates through polymer-assisted deposition. X-ray diffraction and transmission electron microscopy analysis show that the arrays are ZnO hexagonal crystal structure along the c-axial direction. The existence of room temperature ferromagnetism of the arrays was confirmed by the superconducting quantum interference device measurements. The enhancement of ferromagnetism in ZnO nanopillar arrays is found to be correlated with the increase in Zn1− vacancies and the decrease in oxygen interstitials, which was shown by photoluminescence measurements of the samples. Our results provide a viable way to fabricate ferromagnetic vertical arrays of ZnO nanopillars. |
| first_indexed | 2024-12-22T15:04:43Z |
| format | Article |
| id | doaj.art-4f0310a26a7d46fb8997ef472eccece1 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-22T15:04:43Z |
| publishDate | 2020-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-4f0310a26a7d46fb8997ef472eccece12022-12-21T18:22:01ZengAIP Publishing LLCAIP Advances2158-32262020-01-01101015337015337-410.1063/1.5135332Fabrication of vertically aligned ferromagnetic ZnO nanopillar arrays on sapphire substrates by polymer-assisted depositionJia Luo0Hongtao Ren1Xi Zhang2Gang Xiang3School of Physical Science and Technology, Key Laboratory of Advanced Technology of Materials Ministry of Education of China, Southwest Jiaotong University, Chengdu 610031, ChinaCollege of Physics, Sichuan University, Chengdu 610064, ChinaCollege of Physics, Sichuan University, Chengdu 610064, ChinaCollege of Physics, Sichuan University, Chengdu 610064, ChinaVertically aligned ferromagnetic ZnO nanopillar arrays have been fabricated on single-crystal sapphire substrates through polymer-assisted deposition. X-ray diffraction and transmission electron microscopy analysis show that the arrays are ZnO hexagonal crystal structure along the c-axial direction. The existence of room temperature ferromagnetism of the arrays was confirmed by the superconducting quantum interference device measurements. The enhancement of ferromagnetism in ZnO nanopillar arrays is found to be correlated with the increase in Zn1− vacancies and the decrease in oxygen interstitials, which was shown by photoluminescence measurements of the samples. Our results provide a viable way to fabricate ferromagnetic vertical arrays of ZnO nanopillars.http://dx.doi.org/10.1063/1.5135332 |
| spellingShingle | Jia Luo Hongtao Ren Xi Zhang Gang Xiang Fabrication of vertically aligned ferromagnetic ZnO nanopillar arrays on sapphire substrates by polymer-assisted deposition AIP Advances |
| title | Fabrication of vertically aligned ferromagnetic ZnO nanopillar arrays on sapphire substrates by polymer-assisted deposition |
| title_full | Fabrication of vertically aligned ferromagnetic ZnO nanopillar arrays on sapphire substrates by polymer-assisted deposition |
| title_fullStr | Fabrication of vertically aligned ferromagnetic ZnO nanopillar arrays on sapphire substrates by polymer-assisted deposition |
| title_full_unstemmed | Fabrication of vertically aligned ferromagnetic ZnO nanopillar arrays on sapphire substrates by polymer-assisted deposition |
| title_short | Fabrication of vertically aligned ferromagnetic ZnO nanopillar arrays on sapphire substrates by polymer-assisted deposition |
| title_sort | fabrication of vertically aligned ferromagnetic zno nanopillar arrays on sapphire substrates by polymer assisted deposition |
| url | http://dx.doi.org/10.1063/1.5135332 |
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