Stabilization of the Surface of ZnO Films and Elimination of the Aging Effect

Zinc oxide is a promising multifunctional material. The practical use of nano- and polycrystalline ZnO devices faces a serious problem of instability of electrical and luminescent characteristics, due to the adsorption of oxygen by the surface during aging. In this paper, the aging effect in ZnO fil...

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Autores principales:	Khabibulla A. Abdullin, Maratbek T. Gabdullin, Sultan K. Zhumagulov, Guzal A. Ismailova, Lesya V. Gritsenko, Yevgeniya Y. Kedruk, Mojtaba Mirzaeian
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ZnO chemical bath deposition hydrogen plasma treatment aging effect surface stabilization Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/d571f4b0279241e6b7f3c40683fd999c
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spelling	oai:doaj.org-article:d571f4b0279241e6b7f3c40683fd999c2021-11-11T18:06:02ZStabilization of the Surface of ZnO Films and Elimination of the Aging Effect10.3390/ma142165351996-1944https://doaj.org/article/d571f4b0279241e6b7f3c40683fd999c2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6535https://doaj.org/toc/1996-1944Zinc oxide is a promising multifunctional material. The practical use of nano- and polycrystalline ZnO devices faces a serious problem of instability of electrical and luminescent characteristics, due to the adsorption of oxygen by the surface during aging. In this paper, the aging effect in ZnO films and nanorod arrays was studied. It was found that ZnO samples demonstrate different behavior of the degradation process, which corresponds to at least two different types of adsorbing surface sites for O<sub>2</sub>, where O<sub>2</sub> adsorption is of a different nature. The first type of surface sites is rapidly depassivated after hydrogen passivation and the aging effect takes place due to these centers. The second type of surface sites has a stable structure after hydrogen passivation and corresponds to HO–ZnO sites. The XPS components of these sites include the Zn2p<sub>3/2</sub> peak at 1022.2 ± 0.2 eV and Zn2p<sub>1/2</sub> peak at 1045.2 ± 0.2 eV, with a part of the XPS O1s peak at 531.5 ± 0.3 eV. The annealing transforms the first type of site into the second one, and the subsequent short-term plasma treatment in hydrogen results in steady passivation, where the degradation of characteristics is practically reduced to zero.Khabibulla A. AbdullinMaratbek T. GabdullinSultan K. ZhumagulovGuzal A. IsmailovaLesya V. GritsenkoYevgeniya Y. KedrukMojtaba MirzaeianMDPI AGarticleZnOchemical bath depositionhydrogen plasma treatmentaging effectsurface stabilizationTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6535, p 6535 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ZnO chemical bath deposition hydrogen plasma treatment aging effect surface stabilization Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	ZnO chemical bath deposition hydrogen plasma treatment aging effect surface stabilization Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Khabibulla A. Abdullin Maratbek T. Gabdullin Sultan K. Zhumagulov Guzal A. Ismailova Lesya V. Gritsenko Yevgeniya Y. Kedruk Mojtaba Mirzaeian Stabilization of the Surface of ZnO Films and Elimination of the Aging Effect
description	Zinc oxide is a promising multifunctional material. The practical use of nano- and polycrystalline ZnO devices faces a serious problem of instability of electrical and luminescent characteristics, due to the adsorption of oxygen by the surface during aging. In this paper, the aging effect in ZnO films and nanorod arrays was studied. It was found that ZnO samples demonstrate different behavior of the degradation process, which corresponds to at least two different types of adsorbing surface sites for O<sub>2</sub>, where O<sub>2</sub> adsorption is of a different nature. The first type of surface sites is rapidly depassivated after hydrogen passivation and the aging effect takes place due to these centers. The second type of surface sites has a stable structure after hydrogen passivation and corresponds to HO–ZnO sites. The XPS components of these sites include the Zn2p<sub>3/2</sub> peak at 1022.2 ± 0.2 eV and Zn2p<sub>1/2</sub> peak at 1045.2 ± 0.2 eV, with a part of the XPS O1s peak at 531.5 ± 0.3 eV. The annealing transforms the first type of site into the second one, and the subsequent short-term plasma treatment in hydrogen results in steady passivation, where the degradation of characteristics is practically reduced to zero.
format	article
author	Khabibulla A. Abdullin Maratbek T. Gabdullin Sultan K. Zhumagulov Guzal A. Ismailova Lesya V. Gritsenko Yevgeniya Y. Kedruk Mojtaba Mirzaeian
author_facet	Khabibulla A. Abdullin Maratbek T. Gabdullin Sultan K. Zhumagulov Guzal A. Ismailova Lesya V. Gritsenko Yevgeniya Y. Kedruk Mojtaba Mirzaeian
author_sort	Khabibulla A. Abdullin
title	Stabilization of the Surface of ZnO Films and Elimination of the Aging Effect
title_short	Stabilization of the Surface of ZnO Films and Elimination of the Aging Effect
title_full	Stabilization of the Surface of ZnO Films and Elimination of the Aging Effect
title_fullStr	Stabilization of the Surface of ZnO Films and Elimination of the Aging Effect
title_full_unstemmed	Stabilization of the Surface of ZnO Films and Elimination of the Aging Effect
title_sort	stabilization of the surface of zno films and elimination of the aging effect
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d571f4b0279241e6b7f3c40683fd999c
work_keys_str_mv	AT khabibullaaabdullin stabilizationofthesurfaceofznofilmsandeliminationoftheagingeffect AT maratbektgabdullin stabilizationofthesurfaceofznofilmsandeliminationoftheagingeffect AT sultankzhumagulov stabilizationofthesurfaceofznofilmsandeliminationoftheagingeffect AT guzalaismailova stabilizationofthesurfaceofznofilmsandeliminationoftheagingeffect AT lesyavgritsenko stabilizationofthesurfaceofznofilmsandeliminationoftheagingeffect AT yevgeniyaykedruk stabilizationofthesurfaceofznofilmsandeliminationoftheagingeffect AT mojtabamirzaeian stabilizationofthesurfaceofznofilmsandeliminationoftheagingeffect
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Stabilization of the Surface of ZnO Films and Elimination of the Aging Effect

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