Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy

Abstract We propose direct synthesis of ultra-thin graphitic films on a dielectric substrate using sacrificial Ni catalyst layer, which significantly increases the crystallinity of the photoresist pyrolyzed at the temperature of 800 °C and above. A considerable amount of multilayer graphene in the p...

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Autores principales:	Tommi Kaplas, Antti Matikainen, Tarmo Nuutinen, Sari Suvanto, Pasi Vahimaa, Yuri Svirko
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/eaa97ad79bdb4fd0b9d70fbac44d0220
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spelling	oai:doaj.org-article:eaa97ad79bdb4fd0b9d70fbac44d02202021-12-02T16:06:30ZScalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy10.1038/s41598-017-09308-92045-2322https://doaj.org/article/eaa97ad79bdb4fd0b9d70fbac44d02202017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09308-9https://doaj.org/toc/2045-2322Abstract We propose direct synthesis of ultra-thin graphitic films on a dielectric substrate using sacrificial Ni catalyst layer, which significantly increases the crystallinity of the photoresist pyrolyzed at the temperature of 800 °C and above. A considerable amount of multilayer graphene in the photoresist film pyrolyzed in the presence of the Ni catalyst gives rise to an enhancement of the Raman signal of dye Sudan III molecules deposited on the substrate. We demonstrate comparable enhancement of the Raman signal from Sudan III molecules deposited on the fabricated graphitic substrate and those deposited on graphene, which was conventionally transferred to the silica substrate.Tommi KaplasAntti MatikainenTarmo NuutinenSari SuvantoPasi VahimaaYuri SvirkoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tommi Kaplas Antti Matikainen Tarmo Nuutinen Sari Suvanto Pasi Vahimaa Yuri Svirko Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy
description	Abstract We propose direct synthesis of ultra-thin graphitic films on a dielectric substrate using sacrificial Ni catalyst layer, which significantly increases the crystallinity of the photoresist pyrolyzed at the temperature of 800 °C and above. A considerable amount of multilayer graphene in the photoresist film pyrolyzed in the presence of the Ni catalyst gives rise to an enhancement of the Raman signal of dye Sudan III molecules deposited on the substrate. We demonstrate comparable enhancement of the Raman signal from Sudan III molecules deposited on the fabricated graphitic substrate and those deposited on graphene, which was conventionally transferred to the silica substrate.
format	article
author	Tommi Kaplas Antti Matikainen Tarmo Nuutinen Sari Suvanto Pasi Vahimaa Yuri Svirko
author_facet	Tommi Kaplas Antti Matikainen Tarmo Nuutinen Sari Suvanto Pasi Vahimaa Yuri Svirko
author_sort	Tommi Kaplas
title	Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy
title_short	Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy
title_full	Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy
title_fullStr	Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy
title_full_unstemmed	Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy
title_sort	scalable fabrication of the graphitic substrates for graphene-enhanced raman spectroscopy
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/eaa97ad79bdb4fd0b9d70fbac44d0220
work_keys_str_mv	AT tommikaplas scalablefabricationofthegraphiticsubstratesforgrapheneenhancedramanspectroscopy AT anttimatikainen scalablefabricationofthegraphiticsubstratesforgrapheneenhancedramanspectroscopy AT tarmonuutinen scalablefabricationofthegraphiticsubstratesforgrapheneenhancedramanspectroscopy AT sarisuvanto scalablefabricationofthegraphiticsubstratesforgrapheneenhancedramanspectroscopy AT pasivahimaa scalablefabricationofthegraphiticsubstratesforgrapheneenhancedramanspectroscopy AT yurisvirko scalablefabricationofthegraphiticsubstratesforgrapheneenhancedramanspectroscopy
_version_	1718384998400131072

Scalable fabrication of the graphitic substrates for graphene-enhanced Raman spectroscopy

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