Deep-Level Emission Tailoring in ZnO Nanostructures Grown via Hydrothermal Synthesis
Zinc oxide (ZnO) nanostructures are widely used in various fields of science and technology due to their properties and ease of fabrication. To achieve the desired characteristics for subsequent device application, it is necessary to develop growth methods allowing for control over the nanostructure...
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| Format: | Article |
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MDPI AG
2022-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/1/58 |
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| author | Svetlana A. Kadinskaya Valeriy M. Kondratev Ivan K. Kindyushov Olga Yu. Koval Dmitry I. Yakubovsky Alexey Kusnetsov Alexey I. Lihachev Alexey V. Nashchekin Irina Kh. Akopyan Alexey Yu. Serov Mariana E. Labzovskaya Sergey V. Mikushev Boris V. Novikov Igor V. Shtrom Alexey D. Bolshakov |
| author_facet | Svetlana A. Kadinskaya Valeriy M. Kondratev Ivan K. Kindyushov Olga Yu. Koval Dmitry I. Yakubovsky Alexey Kusnetsov Alexey I. Lihachev Alexey V. Nashchekin Irina Kh. Akopyan Alexey Yu. Serov Mariana E. Labzovskaya Sergey V. Mikushev Boris V. Novikov Igor V. Shtrom Alexey D. Bolshakov |
| author_sort | Svetlana A. Kadinskaya |
| collection | DOAJ |
| description | Zinc oxide (ZnO) nanostructures are widely used in various fields of science and technology due to their properties and ease of fabrication. To achieve the desired characteristics for subsequent device application, it is necessary to develop growth methods allowing for control over the nanostructures’ morphology and crystallinity governing their optical and electronic properties. In this work, we grow ZnO nanostructures via hydrothermal synthesis using surfactants that significantly affect the growth kinetics. Nanostructures with geometry from nanowires to hexapods are obtained and studied with photoluminescence (PL) spectroscopy. Analysis of the photoluminescence spectra demonstrates pronounced exciton on a neutral donor UV emission in all of the samples. Changing the growth medium chemical composition affects the emission characteristics sufficiently. Apart the UV emission, nanostructures synthesized without the surfactants demonstrate deep-level emission in the visible range with a peak near 620 nm. Structures synthesized with the use of sodium citrate exhibit emission peak near 520 nm, and those with polyethylenimine do not exhibit the deep-level emission. Thus, we demonstrate the correlation between the hydrothermal growth conditions and the obtained ZnO nanostructures’ optical properties, opening up new possibilities for their precise control and application in nanophotonics, UV–Vis and white light sources. |
| first_indexed | 2024-03-09T09:43:46Z |
| format | Article |
| id | doaj.art-93a8515a79f143bcb4a386cc23d4de4e |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T09:43:46Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-93a8515a79f143bcb4a386cc23d4de4e2023-12-02T00:44:05ZengMDPI AGNanomaterials2079-49912022-12-011315810.3390/nano13010058Deep-Level Emission Tailoring in ZnO Nanostructures Grown via Hydrothermal SynthesisSvetlana A. Kadinskaya0Valeriy M. Kondratev1Ivan K. Kindyushov2Olga Yu. Koval3Dmitry I. Yakubovsky4Alexey Kusnetsov5Alexey I. Lihachev6Alexey V. Nashchekin7Irina Kh. Akopyan8Alexey Yu. Serov9Mariana E. Labzovskaya10Sergey V. Mikushev11Boris V. Novikov12Igor V. Shtrom13Alexey D. Bolshakov14Center for Nanotechnologies, Alferov University, 194021 St. Petersburg, RussiaCenter for Nanotechnologies, Alferov University, 194021 St. Petersburg, RussiaCenter for Nanotechnologies, Alferov University, 194021 St. Petersburg, RussiaCenter for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutskiy Lane, 141701 Dolgoprudny, RussiaCenter for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutskiy Lane, 141701 Dolgoprudny, RussiaCenter for Nanotechnologies, Alferov University, 194021 St. Petersburg, RussiaLab. "Characterization of Materials and Structures of Solid State Electronics", Ioffe Institute, 194021 St. Petersburg, RussiaLab. "Characterization of Materials and Structures of Solid State Electronics", Ioffe Institute, 194021 St. Petersburg, RussiaDepartment of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, RussiaDepartment of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, RussiaDepartment of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, RussiaDepartment of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, RussiaDepartment of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, RussiaDepartment of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, RussiaCenter for Nanotechnologies, Alferov University, 194021 St. Petersburg, RussiaZinc oxide (ZnO) nanostructures are widely used in various fields of science and technology due to their properties and ease of fabrication. To achieve the desired characteristics for subsequent device application, it is necessary to develop growth methods allowing for control over the nanostructures’ morphology and crystallinity governing their optical and electronic properties. In this work, we grow ZnO nanostructures via hydrothermal synthesis using surfactants that significantly affect the growth kinetics. Nanostructures with geometry from nanowires to hexapods are obtained and studied with photoluminescence (PL) spectroscopy. Analysis of the photoluminescence spectra demonstrates pronounced exciton on a neutral donor UV emission in all of the samples. Changing the growth medium chemical composition affects the emission characteristics sufficiently. Apart the UV emission, nanostructures synthesized without the surfactants demonstrate deep-level emission in the visible range with a peak near 620 nm. Structures synthesized with the use of sodium citrate exhibit emission peak near 520 nm, and those with polyethylenimine do not exhibit the deep-level emission. Thus, we demonstrate the correlation between the hydrothermal growth conditions and the obtained ZnO nanostructures’ optical properties, opening up new possibilities for their precise control and application in nanophotonics, UV–Vis and white light sources.https://www.mdpi.com/2079-4991/13/1/58zinc oxidehydrothermalnanowirephotoluminescencedeep-level emissionPEI |
| spellingShingle | Svetlana A. Kadinskaya Valeriy M. Kondratev Ivan K. Kindyushov Olga Yu. Koval Dmitry I. Yakubovsky Alexey Kusnetsov Alexey I. Lihachev Alexey V. Nashchekin Irina Kh. Akopyan Alexey Yu. Serov Mariana E. Labzovskaya Sergey V. Mikushev Boris V. Novikov Igor V. Shtrom Alexey D. Bolshakov Deep-Level Emission Tailoring in ZnO Nanostructures Grown via Hydrothermal Synthesis Nanomaterials zinc oxide hydrothermal nanowire photoluminescence deep-level emission PEI |
| title | Deep-Level Emission Tailoring in ZnO Nanostructures Grown via Hydrothermal Synthesis |
| title_full | Deep-Level Emission Tailoring in ZnO Nanostructures Grown via Hydrothermal Synthesis |
| title_fullStr | Deep-Level Emission Tailoring in ZnO Nanostructures Grown via Hydrothermal Synthesis |
| title_full_unstemmed | Deep-Level Emission Tailoring in ZnO Nanostructures Grown via Hydrothermal Synthesis |
| title_short | Deep-Level Emission Tailoring in ZnO Nanostructures Grown via Hydrothermal Synthesis |
| title_sort | deep level emission tailoring in zno nanostructures grown via hydrothermal synthesis |
| topic | zinc oxide hydrothermal nanowire photoluminescence deep-level emission PEI |
| url | https://www.mdpi.com/2079-4991/13/1/58 |
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