Graphite to diamond transition induced by photoelectric absorption of ultraviolet photons

Abstract The phase transition from graphite to diamond is an appealing object of study because of many fundamental and also, practical reasons. The out-of-plane distortions required for the transition are a good tool to understand the collective behaviour of layered materials (graphene, graphite) an...

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Autores principales:	Ana I. Gómez de Castro, Maikel Rheinstädter, Patrick Clancy, Maribel Castilla, Federico de Isidro, Juan I. Larruquert, Tomas de Lis-Sánchez, James Britten, Mariona Cabero Piris, Federico P. de Isidro-Gómez
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/96ba8e4e7d4b42ae81fbe650612e5ebe
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spelling	oai:doaj.org-article:96ba8e4e7d4b42ae81fbe650612e5ebe2021-12-02T10:48:02ZGraphite to diamond transition induced by photoelectric absorption of ultraviolet photons10.1038/s41598-021-81153-32045-2322https://doaj.org/article/96ba8e4e7d4b42ae81fbe650612e5ebe2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81153-3https://doaj.org/toc/2045-2322Abstract The phase transition from graphite to diamond is an appealing object of study because of many fundamental and also, practical reasons. The out-of-plane distortions required for the transition are a good tool to understand the collective behaviour of layered materials (graphene, graphite) and the van der Waals forces. As today, two basic processes have been successfully tested to drive this transition: strong shocks and high energy femtolaser excitation. They induce it by increasing either pressure or temperature on graphite. In this work, we report a third method consisting in the irradiation of graphite with ultraviolet photons of energies above 4.4 eV. We show high resolution electron microscopy images of pyrolytic carbon evidencing the dislocation of the superficial graphitic layers after irradiation and the formation of crystallite islands within them. Electron energy loss spectroscopy of the islands show that the sp2 to sp3 hybridation transition is a surface effect. High sensitivity X-ray diffraction experiments and Raman spectroscopy confirm the formation of diamond within the islands.Ana I. Gómez de CastroMaikel RheinstädterPatrick ClancyMaribel CastillaFederico de IsidroJuan I. LarruquertTomas de Lis-SánchezJames BrittenMariona Cabero PirisFederico P. de Isidro-GómezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ana I. Gómez de Castro Maikel Rheinstädter Patrick Clancy Maribel Castilla Federico de Isidro Juan I. Larruquert Tomas de Lis-Sánchez James Britten Mariona Cabero Piris Federico P. de Isidro-Gómez Graphite to diamond transition induced by photoelectric absorption of ultraviolet photons
description	Abstract The phase transition from graphite to diamond is an appealing object of study because of many fundamental and also, practical reasons. The out-of-plane distortions required for the transition are a good tool to understand the collective behaviour of layered materials (graphene, graphite) and the van der Waals forces. As today, two basic processes have been successfully tested to drive this transition: strong shocks and high energy femtolaser excitation. They induce it by increasing either pressure or temperature on graphite. In this work, we report a third method consisting in the irradiation of graphite with ultraviolet photons of energies above 4.4 eV. We show high resolution electron microscopy images of pyrolytic carbon evidencing the dislocation of the superficial graphitic layers after irradiation and the formation of crystallite islands within them. Electron energy loss spectroscopy of the islands show that the sp2 to sp3 hybridation transition is a surface effect. High sensitivity X-ray diffraction experiments and Raman spectroscopy confirm the formation of diamond within the islands.
format	article
author	Ana I. Gómez de Castro Maikel Rheinstädter Patrick Clancy Maribel Castilla Federico de Isidro Juan I. Larruquert Tomas de Lis-Sánchez James Britten Mariona Cabero Piris Federico P. de Isidro-Gómez
author_facet	Ana I. Gómez de Castro Maikel Rheinstädter Patrick Clancy Maribel Castilla Federico de Isidro Juan I. Larruquert Tomas de Lis-Sánchez James Britten Mariona Cabero Piris Federico P. de Isidro-Gómez
author_sort	Ana I. Gómez de Castro
title	Graphite to diamond transition induced by photoelectric absorption of ultraviolet photons
title_short	Graphite to diamond transition induced by photoelectric absorption of ultraviolet photons
title_full	Graphite to diamond transition induced by photoelectric absorption of ultraviolet photons
title_fullStr	Graphite to diamond transition induced by photoelectric absorption of ultraviolet photons
title_full_unstemmed	Graphite to diamond transition induced by photoelectric absorption of ultraviolet photons
title_sort	graphite to diamond transition induced by photoelectric absorption of ultraviolet photons
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/96ba8e4e7d4b42ae81fbe650612e5ebe
work_keys_str_mv	AT anaigomezdecastro graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons AT maikelrheinstadter graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons AT patrickclancy graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons AT maribelcastilla graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons AT federicodeisidro graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons AT juanilarruquert graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons AT tomasdelissanchez graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons AT jamesbritten graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons AT marionacaberopiris graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons AT federicopdeisidrogomez graphitetodiamondtransitioninducedbyphotoelectricabsorptionofultravioletphotons
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Graphite to diamond transition induced by photoelectric absorption of ultraviolet photons

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