The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates

Spray pyrolysis (SP) and spray-gel (SG) techniques were used to deposit ZnO seeds on Fluor doped tin oxide glasses (FTO), heated at 350 C or 130 C, and PET heated at 90 C. The effect of seeding on the morphology and wettability of ZnO nanorods (NRs) films grown by wet chemical methods was analyzed....

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Autores principales:	Onna, Diego Ariel, Marchi, María Claudia, Candal, Roberto Jorge, Aldabe Bilmes, Sara Alfonsina Dora
Publicado:	2013
Materias:	Nanorods Spray pyrolysis Spray-gel ZnO Chemical analysis Cracking (chemical) Ethanol II-VI semiconductors Morphology Oxide films Sols Substrates Surface defects Tin oxides Wetting Different substrates Intrinsic defects Patterned distribution Precursor solutions Strong luminescence Vertically aligned Water ethanol mixtures Wet-chemical method Zinc oxide
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01694332_v279_n_p197_Rodriguez http://hdl.handle.net/20.500.12110/paper_01694332_v279_n_p197_Rodriguez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01694332_v279_n_p197_Rodriguez
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spelling	paper:paper_01694332_v279_n_p197_Rodriguez2023-06-08T15:18:22Z The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates Onna, Diego Ariel Marchi, María Claudia Candal, Roberto Jorge Aldabe Bilmes, Sara Alfonsina Dora Nanorods Spray pyrolysis Spray-gel ZnO Chemical analysis Cracking (chemical) Ethanol II-VI semiconductors Morphology Nanorods Oxide films Sols Spray pyrolysis Substrates Surface defects Tin oxides Wetting Different substrates Intrinsic defects Patterned distribution Precursor solutions Strong luminescence Vertically aligned Water ethanol mixtures Wet-chemical method Zinc oxide Spray pyrolysis (SP) and spray-gel (SG) techniques were used to deposit ZnO seeds on Fluor doped tin oxide glasses (FTO), heated at 350 C or 130 C, and PET heated at 90 C. The effect of seeding on the morphology and wettability of ZnO nanorods (NRs) films grown by wet chemical methods was analyzed. The morphology and wettability of ZnO NRs films depend on the seeding process. SP seeds formed from zinc acetate dissolved in water ethanol mixtures yield vertically aligned ZnO NRs, whose diameters and dispersion size are determined by the ethanol/water ratio in the precursor solution. SG seeds formed from a methanol ZnO sol produce a ring patterned distribution on the FTO substrate. The drying of ZnO sol drops impinging on the substrate produces high density of seeds along a ring yielding textured films with NRs vertically oriented on the rings and multi-oriented outside them. This effect was not observed when ZnO NRs grown onto the ZnO/PET substrate, however rod diameter is related with the density of seeds. This way to control the density and diameter of NRs deposited onto a substrate modify the wettability and opens new possibilities for the design of tailored nanomaterials for photochemical applications. Both type of NRs films showed a strong luminescence emission in the UV and in the blue, associated with surface and intrinsic defects. © 2013 Published by Elsevier B.V. Fil:Onna, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marchi, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Candal, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bilmes, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01694332_v279_n_p197_Rodriguez http://hdl.handle.net/20.500.12110/paper_01694332_v279_n_p197_Rodriguez
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Nanorods Spray pyrolysis Spray-gel ZnO Chemical analysis Cracking (chemical) Ethanol II-VI semiconductors Morphology Nanorods Oxide films Sols Spray pyrolysis Substrates Surface defects Tin oxides Wetting Different substrates Intrinsic defects Patterned distribution Precursor solutions Strong luminescence Vertically aligned Water ethanol mixtures Wet-chemical method Zinc oxide
spellingShingle	Nanorods Spray pyrolysis Spray-gel ZnO Chemical analysis Cracking (chemical) Ethanol II-VI semiconductors Morphology Nanorods Oxide films Sols Spray pyrolysis Substrates Surface defects Tin oxides Wetting Different substrates Intrinsic defects Patterned distribution Precursor solutions Strong luminescence Vertically aligned Water ethanol mixtures Wet-chemical method Zinc oxide Onna, Diego Ariel Marchi, María Claudia Candal, Roberto Jorge Aldabe Bilmes, Sara Alfonsina Dora The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates
topic_facet	Nanorods Spray pyrolysis Spray-gel ZnO Chemical analysis Cracking (chemical) Ethanol II-VI semiconductors Morphology Nanorods Oxide films Sols Spray pyrolysis Substrates Surface defects Tin oxides Wetting Different substrates Intrinsic defects Patterned distribution Precursor solutions Strong luminescence Vertically aligned Water ethanol mixtures Wet-chemical method Zinc oxide
description	Spray pyrolysis (SP) and spray-gel (SG) techniques were used to deposit ZnO seeds on Fluor doped tin oxide glasses (FTO), heated at 350 C or 130 C, and PET heated at 90 C. The effect of seeding on the morphology and wettability of ZnO nanorods (NRs) films grown by wet chemical methods was analyzed. The morphology and wettability of ZnO NRs films depend on the seeding process. SP seeds formed from zinc acetate dissolved in water ethanol mixtures yield vertically aligned ZnO NRs, whose diameters and dispersion size are determined by the ethanol/water ratio in the precursor solution. SG seeds formed from a methanol ZnO sol produce a ring patterned distribution on the FTO substrate. The drying of ZnO sol drops impinging on the substrate produces high density of seeds along a ring yielding textured films with NRs vertically oriented on the rings and multi-oriented outside them. This effect was not observed when ZnO NRs grown onto the ZnO/PET substrate, however rod diameter is related with the density of seeds. This way to control the density and diameter of NRs deposited onto a substrate modify the wettability and opens new possibilities for the design of tailored nanomaterials for photochemical applications. Both type of NRs films showed a strong luminescence emission in the UV and in the blue, associated with surface and intrinsic defects. © 2013 Published by Elsevier B.V.
author	Onna, Diego Ariel Marchi, María Claudia Candal, Roberto Jorge Aldabe Bilmes, Sara Alfonsina Dora
author_facet	Onna, Diego Ariel Marchi, María Claudia Candal, Roberto Jorge Aldabe Bilmes, Sara Alfonsina Dora
author_sort	Onna, Diego Ariel
title	The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates
title_short	The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates
title_full	The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates
title_fullStr	The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates
title_full_unstemmed	The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates
title_sort	role of seeding in the morphology and wettability of zno nanorods films on different substrates
publishDate	2013
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01694332_v279_n_p197_Rodriguez http://hdl.handle.net/20.500.12110/paper_01694332_v279_n_p197_Rodriguez
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The role of seeding in the morphology and wettability of ZnO nanorods films on different substrates

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