Photocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-UV irradiation

Abstract This paper is aimed at investigating the process of photocrosslinking under Deep-UV irradiation of nanocomposite thin films doped with cobalt ferrite magnetic nanoparticles (MNPs). This material is composed of a hybrid sol–gel matrix in which MNP can be introduced with high concentrations u...

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Autores principales:	C. Bidaud, D. Berling, D. Jamon, E. Gamet, S. Neveu, F. Royer, O. Soppera
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c2dd23c35bed479aae74791de897f376
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spelling	oai:doaj.org-article:c2dd23c35bed479aae74791de897f3762021-12-02T13:30:12ZPhotocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-UV irradiation10.1038/s41598-021-84376-62045-2322https://doaj.org/article/c2dd23c35bed479aae74791de897f3762021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84376-6https://doaj.org/toc/2045-2322Abstract This paper is aimed at investigating the process of photocrosslinking under Deep-UV irradiation of nanocomposite thin films doped with cobalt ferrite magnetic nanoparticles (MNPs). This material is composed of a hybrid sol–gel matrix in which MNP can be introduced with high concentrations up to 20 vol%. Deep-UV (193 nm) is not only interesting for high-resolution patterning but we also show an efficient photopolymerization pathway even in the presence of high concentration of MNPs. In this study, we demonstrate that the photocrosslinking is based on the free radical polymerization of the methacrylate functions of the hybrid precursor. This process is initiated by Titanium-oxo clusters. The impact of the nanoparticles on the photopolymerization kinetic and photopatterning is investigated. We finally show that the photosensitive nanocomposite is suitable to obtain micropatterns with sub-micron resolution, with a simple and versatile process, which opens many opportunities for fabrication of miniaturized magneto-optical devices for photonic applications.C. BidaudD. BerlingD. JamonE. GametS. NeveuF. RoyerO. SopperaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q C. Bidaud D. Berling D. Jamon E. Gamet S. Neveu F. Royer O. Soppera Photocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-UV irradiation
description	Abstract This paper is aimed at investigating the process of photocrosslinking under Deep-UV irradiation of nanocomposite thin films doped with cobalt ferrite magnetic nanoparticles (MNPs). This material is composed of a hybrid sol–gel matrix in which MNP can be introduced with high concentrations up to 20 vol%. Deep-UV (193 nm) is not only interesting for high-resolution patterning but we also show an efficient photopolymerization pathway even in the presence of high concentration of MNPs. In this study, we demonstrate that the photocrosslinking is based on the free radical polymerization of the methacrylate functions of the hybrid precursor. This process is initiated by Titanium-oxo clusters. The impact of the nanoparticles on the photopolymerization kinetic and photopatterning is investigated. We finally show that the photosensitive nanocomposite is suitable to obtain micropatterns with sub-micron resolution, with a simple and versatile process, which opens many opportunities for fabrication of miniaturized magneto-optical devices for photonic applications.
format	article
author	C. Bidaud D. Berling D. Jamon E. Gamet S. Neveu F. Royer O. Soppera
author_facet	C. Bidaud D. Berling D. Jamon E. Gamet S. Neveu F. Royer O. Soppera
author_sort	C. Bidaud
title	Photocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-UV irradiation
title_short	Photocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-UV irradiation
title_full	Photocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-UV irradiation
title_fullStr	Photocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-UV irradiation
title_full_unstemmed	Photocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-UV irradiation
title_sort	photocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-uv irradiation
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c2dd23c35bed479aae74791de897f376
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Photocrosslinking and photopatterning of magneto-optical nanocomposite sol–gel thin film under deep-UV irradiation

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