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Effect of Airborne Hydrocarbons on the Wettability of Phase Change Nanoparticle Decorated Surfaces
[Image: see text] We present here a detailed study of the wettability of surfaces nanostructured with amorphous and crystalline nanoparticles (NPs) derived from the phase-change material Ge(2)Sb(2)Te(5) (GST). Particular attention was devoted to the effect of airborne surface hydrocarbons on surface...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6887839/ https://www.ncbi.nlm.nih.gov/pubmed/31625718 http://dx.doi.org/10.1021/acsnano.9b06909 |
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author | Guo, Weiteng Chen, Bin Do, Van Lam ten Brink, Gert H. Kooi, Bart J. Svetovoy, Vitaly B. Palasantzas, George |
author_facet | Guo, Weiteng Chen, Bin Do, Van Lam ten Brink, Gert H. Kooi, Bart J. Svetovoy, Vitaly B. Palasantzas, George |
author_sort | Guo, Weiteng |
collection | PubMed |
description | [Image: see text] We present here a detailed study of the wettability of surfaces nanostructured with amorphous and crystalline nanoparticles (NPs) derived from the phase-change material Ge(2)Sb(2)Te(5) (GST). Particular attention was devoted to the effect of airborne surface hydrocarbons on surface wetting. Our analysis illustrates that a reversible hydrophilic–hydrophobic wettability switch is revealed by combined ultraviolet-ozone (UV-O(3)) treatments and exposure to hydrocarbon atmospheres. Indeed, the as-prepared surfaces exhibited a hydrophilic state after thermal annealing or UV-O(3) treatment which can partially remove hydrocarbon contaminants, while a hydrophobic state was realized after exposure to hydrocarbon atmosphere. Using high-angle annular dark-field scanning transmission electron microscopy for the specially designed GST NP decorated graphene substrates, a network of hydrocarbon connecting GST NPs was observed. Our findings indicate that airborne hydrocarbons can significantly enhance the hydrophobicity of nanostructured surfaces. Finally, the experiments reveal that previously defined hydrophilic materials can be used for the design of hydrophobic surfaces even if the meniscus is highly adhered to a solid surface, which is in agreement with our qualitative model involving the contribution of the nanomeniscus formed between the substrate and a decorating NP. |
format | Online Article Text |
id | pubmed-6887839 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-68878392019-12-05 Effect of Airborne Hydrocarbons on the Wettability of Phase Change Nanoparticle Decorated Surfaces Guo, Weiteng Chen, Bin Do, Van Lam ten Brink, Gert H. Kooi, Bart J. Svetovoy, Vitaly B. Palasantzas, George ACS Nano [Image: see text] We present here a detailed study of the wettability of surfaces nanostructured with amorphous and crystalline nanoparticles (NPs) derived from the phase-change material Ge(2)Sb(2)Te(5) (GST). Particular attention was devoted to the effect of airborne surface hydrocarbons on surface wetting. Our analysis illustrates that a reversible hydrophilic–hydrophobic wettability switch is revealed by combined ultraviolet-ozone (UV-O(3)) treatments and exposure to hydrocarbon atmospheres. Indeed, the as-prepared surfaces exhibited a hydrophilic state after thermal annealing or UV-O(3) treatment which can partially remove hydrocarbon contaminants, while a hydrophobic state was realized after exposure to hydrocarbon atmosphere. Using high-angle annular dark-field scanning transmission electron microscopy for the specially designed GST NP decorated graphene substrates, a network of hydrocarbon connecting GST NPs was observed. Our findings indicate that airborne hydrocarbons can significantly enhance the hydrophobicity of nanostructured surfaces. Finally, the experiments reveal that previously defined hydrophilic materials can be used for the design of hydrophobic surfaces even if the meniscus is highly adhered to a solid surface, which is in agreement with our qualitative model involving the contribution of the nanomeniscus formed between the substrate and a decorating NP. American Chemical Society 2019-10-18 2019-11-26 /pmc/articles/PMC6887839/ /pubmed/31625718 http://dx.doi.org/10.1021/acsnano.9b06909 Text en Copyright © 2019 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
spellingShingle | Guo, Weiteng Chen, Bin Do, Van Lam ten Brink, Gert H. Kooi, Bart J. Svetovoy, Vitaly B. Palasantzas, George Effect of Airborne Hydrocarbons on the Wettability of Phase Change Nanoparticle Decorated Surfaces |
title | Effect
of Airborne Hydrocarbons on the Wettability
of Phase Change Nanoparticle Decorated Surfaces |
title_full | Effect
of Airborne Hydrocarbons on the Wettability
of Phase Change Nanoparticle Decorated Surfaces |
title_fullStr | Effect
of Airborne Hydrocarbons on the Wettability
of Phase Change Nanoparticle Decorated Surfaces |
title_full_unstemmed | Effect
of Airborne Hydrocarbons on the Wettability
of Phase Change Nanoparticle Decorated Surfaces |
title_short | Effect
of Airborne Hydrocarbons on the Wettability
of Phase Change Nanoparticle Decorated Surfaces |
title_sort | effect
of airborne hydrocarbons on the wettability
of phase change nanoparticle decorated surfaces |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6887839/ https://www.ncbi.nlm.nih.gov/pubmed/31625718 http://dx.doi.org/10.1021/acsnano.9b06909 |
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