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ZnO@TiO(2) Core Shell Nanorod Arrays with Tailored Structural, Electrical, and Optical Properties for Photovoltaic Application

ZnO has prominent electron transport and optical properties, beneficial for photovoltaic application, but its surface is prone to the formation of defects. To overcome this problem, we deposited nanostructured TiO(2) thin film on ZnO nanorods to form a stable shell. ZnO nanorods synthesized by wet-c...

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Autores principales: Panžić, Ivana, Juraić, Krunoslav, Krstulović, Nikša, Šantić, Ana, Belić, Domagoj, Blažeka, Damjan, Plodinec, Milivoj, Mandić, Vilko, Macan, Jelena, Hammud, Adnan, Ivanov, Danail, Plaisier, Jasper, Willinger, Marc Gregor, Gracin, Davor, Gajović, Andreja
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6864808/
https://www.ncbi.nlm.nih.gov/pubmed/31683868
http://dx.doi.org/10.3390/molecules24213965
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author Panžić, Ivana
Juraić, Krunoslav
Krstulović, Nikša
Šantić, Ana
Belić, Domagoj
Blažeka, Damjan
Plodinec, Milivoj
Mandić, Vilko
Macan, Jelena
Hammud, Adnan
Ivanov, Danail
Plaisier, Jasper
Willinger, Marc Gregor
Gracin, Davor
Gajović, Andreja
author_facet Panžić, Ivana
Juraić, Krunoslav
Krstulović, Nikša
Šantić, Ana
Belić, Domagoj
Blažeka, Damjan
Plodinec, Milivoj
Mandić, Vilko
Macan, Jelena
Hammud, Adnan
Ivanov, Danail
Plaisier, Jasper
Willinger, Marc Gregor
Gracin, Davor
Gajović, Andreja
author_sort Panžić, Ivana
collection PubMed
description ZnO has prominent electron transport and optical properties, beneficial for photovoltaic application, but its surface is prone to the formation of defects. To overcome this problem, we deposited nanostructured TiO(2) thin film on ZnO nanorods to form a stable shell. ZnO nanorods synthesized by wet-chemistry are single crystals. Three different procedures for deposition of TiO(2) were applied. The influence of preparation methods and parameters on the structure, morphology, electrical and optical properties were studied. Nanostructured TiO(2) shells show different morphologies dependent on deposition methods: (1) separated nanoparticles (by pulsed laser deposition (PLD) in Ar), (2) a layer with nonhomogeneous thickness (by PLD in vacuum or DC reactive magnetron sputtering), and (3) a homogenous thin layer along the nanorods (by chemical deposition). Based on the structural study, we chose the preparation parameters to obtain an anatase structure of the TiO(2) shell. Impedance spectroscopy shows pure electron conductivity that was considerably better in all the ZnO@TiO(2) than in bare ZnO nanorods or TiO(2) layers. The best conductivity among the studied samples and the lowest activation energy was observed for the sample with a chemically deposited TiO(2) shell. Higher transparency in the visible part of spectrum was achieved for the sample with a homogenous TiO(2) layer along the nanorods, then in the samples with a layer of varying thickness.
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spelling pubmed-68648082019-12-06 ZnO@TiO(2) Core Shell Nanorod Arrays with Tailored Structural, Electrical, and Optical Properties for Photovoltaic Application Panžić, Ivana Juraić, Krunoslav Krstulović, Nikša Šantić, Ana Belić, Domagoj Blažeka, Damjan Plodinec, Milivoj Mandić, Vilko Macan, Jelena Hammud, Adnan Ivanov, Danail Plaisier, Jasper Willinger, Marc Gregor Gracin, Davor Gajović, Andreja Molecules Article ZnO has prominent electron transport and optical properties, beneficial for photovoltaic application, but its surface is prone to the formation of defects. To overcome this problem, we deposited nanostructured TiO(2) thin film on ZnO nanorods to form a stable shell. ZnO nanorods synthesized by wet-chemistry are single crystals. Three different procedures for deposition of TiO(2) were applied. The influence of preparation methods and parameters on the structure, morphology, electrical and optical properties were studied. Nanostructured TiO(2) shells show different morphologies dependent on deposition methods: (1) separated nanoparticles (by pulsed laser deposition (PLD) in Ar), (2) a layer with nonhomogeneous thickness (by PLD in vacuum or DC reactive magnetron sputtering), and (3) a homogenous thin layer along the nanorods (by chemical deposition). Based on the structural study, we chose the preparation parameters to obtain an anatase structure of the TiO(2) shell. Impedance spectroscopy shows pure electron conductivity that was considerably better in all the ZnO@TiO(2) than in bare ZnO nanorods or TiO(2) layers. The best conductivity among the studied samples and the lowest activation energy was observed for the sample with a chemically deposited TiO(2) shell. Higher transparency in the visible part of spectrum was achieved for the sample with a homogenous TiO(2) layer along the nanorods, then in the samples with a layer of varying thickness. MDPI 2019-11-01 /pmc/articles/PMC6864808/ /pubmed/31683868 http://dx.doi.org/10.3390/molecules24213965 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Panžić, Ivana
Juraić, Krunoslav
Krstulović, Nikša
Šantić, Ana
Belić, Domagoj
Blažeka, Damjan
Plodinec, Milivoj
Mandić, Vilko
Macan, Jelena
Hammud, Adnan
Ivanov, Danail
Plaisier, Jasper
Willinger, Marc Gregor
Gracin, Davor
Gajović, Andreja
ZnO@TiO(2) Core Shell Nanorod Arrays with Tailored Structural, Electrical, and Optical Properties for Photovoltaic Application
title ZnO@TiO(2) Core Shell Nanorod Arrays with Tailored Structural, Electrical, and Optical Properties for Photovoltaic Application
title_full ZnO@TiO(2) Core Shell Nanorod Arrays with Tailored Structural, Electrical, and Optical Properties for Photovoltaic Application
title_fullStr ZnO@TiO(2) Core Shell Nanorod Arrays with Tailored Structural, Electrical, and Optical Properties for Photovoltaic Application
title_full_unstemmed ZnO@TiO(2) Core Shell Nanorod Arrays with Tailored Structural, Electrical, and Optical Properties for Photovoltaic Application
title_short ZnO@TiO(2) Core Shell Nanorod Arrays with Tailored Structural, Electrical, and Optical Properties for Photovoltaic Application
title_sort zno@tio(2) core shell nanorod arrays with tailored structural, electrical, and optical properties for photovoltaic application
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6864808/
https://www.ncbi.nlm.nih.gov/pubmed/31683868
http://dx.doi.org/10.3390/molecules24213965
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