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Kadinskaya SA, Kondratev VM, Kindyushov IK, Koval OY, Yakubovsky DI, Kusnetsov A, Lihachev AI, Nashchekin AV, Akopyan IK, Serov AY, Labzovskaya ME, Mikushev SV, Novikov BV, Shtrom IV, Bolshakov AD. Deep-Level Emission Tailoring in ZnO Nanostructures Grown via Hydrothermal Synthesis. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:58. [PMID: 36615968 PMCID: PMC9823538 DOI: 10.3390/nano13010058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
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.
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Affiliation(s)
- Svetlana A. Kadinskaya
- Center for Nanotechnologies, Alferov University, 194021 St. Petersburg, Russia
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutskiy Lane, 141701 Dolgoprudny, Russia
| | - Valeriy M. Kondratev
- Center for Nanotechnologies, Alferov University, 194021 St. Petersburg, Russia
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutskiy Lane, 141701 Dolgoprudny, Russia
| | - Ivan K. Kindyushov
- Center for Nanotechnologies, Alferov University, 194021 St. Petersburg, Russia
| | - Olga Yu. Koval
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutskiy Lane, 141701 Dolgoprudny, Russia
| | - Dmitry I. Yakubovsky
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutskiy Lane, 141701 Dolgoprudny, Russia
| | - Alexey Kusnetsov
- Center for Nanotechnologies, Alferov University, 194021 St. Petersburg, Russia
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutskiy Lane, 141701 Dolgoprudny, Russia
| | - Alexey I. Lihachev
- Lab. "Characterization of Materials and Structures of Solid State Electronics", Loffe Institute, 194021 St. Petersburg, Russia
| | - Alexey V. Nashchekin
- Lab. "Characterization of Materials and Structures of Solid State Electronics", Loffe Institute, 194021 St. Petersburg, Russia
| | - Irina Kh. Akopyan
- Department of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, Russia
| | - Alexey Yu. Serov
- Department of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, Russia
| | - Mariana E. Labzovskaya
- Department of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, Russia
| | - Sergey V. Mikushev
- Department of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, Russia
| | - Boris V. Novikov
- Department of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, Russia
| | - Igor V. Shtrom
- Department of Solid State Physics, Saint Petersburg State University, 199034 St. Petersburg, Russia
- Department of Nanotechnology Methods and Instruments, IAI RAS, 198095 St. Petersburg, Russia
| | - Alexey D. Bolshakov
- Center for Nanotechnologies, Alferov University, 194021 St. Petersburg, Russia
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutskiy Lane, 141701 Dolgoprudny, Russia
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