FIELD DESORPTION OF INTERCALATED CAESIUM ATOMS FROM GRAPHENE ON THE (100) IRIDIUM FACE

The desorption of caesium atoms from the quasi-spherical carbonized surface of an iridium single crystal was studied using the field desorption microscopy. Field electron and desorption images of the surface during the formation of graphene on the (100) iridium face are obtained. The field electron...

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Autores principales:	D.P. Bernatskii, V.G. Pavlov
Formato:	article
Lenguaje:	RU
Publicado:	Tver State University 2021
Materias:	field desorption microscopy graphene field emitter alkali metals intercalation Physical and theoretical chemistry QD450-801
Acceso en línea:	https://doaj.org/article/8fcb37324a124653aa77e750cb211144
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spelling	oai:doaj.org-article:8fcb37324a124653aa77e750cb2111442021-12-03T07:46:47ZFIELD DESORPTION OF INTERCALATED CAESIUM ATOMS FROM GRAPHENE ON THE (100) IRIDIUM FACE10.26456/pcascnn/2021.13.0182226-44422658-4360https://doaj.org/article/8fcb37324a124653aa77e750cb2111442021-12-01T00:00:00Zhttps://physchemaspects.ru/2021/doi-10-26456-pcascnn-2021-13-018/?lang=enhttps://doaj.org/toc/2226-4442https://doaj.org/toc/2658-4360The desorption of caesium atoms from the quasi-spherical carbonized surface of an iridium single crystal was studied using the field desorption microscopy. Field electron and desorption images of the surface during the formation of graphene on the (100) iridium face are obtained. The field electron images of the emitter surface before intercalation and after intercalation of graphene with caesium atoms do not change. The electric field stimulates the desorption of caesium atoms from the intercalated state, due to the breaking of the bonds of the extreme carbon atoms with the surface of the face (100) of iridium. Using frame-by-frame recording, the possibility is shown of observing the localization of graphene layer defects on the surface of the field emitter. It is also shown that the field desorption of caesium atoms from the intercalated state begins with graphene defects located along the perimeter of the graphene island. It is found that desorption centers can be located not only along the perimeter of the graphene island, but also in its central part in the case of the disordered graphene formation.D.P. BernatskiiV.G. PavlovTver State Universityarticlefield desorption microscopygraphenefield emitteralkali metalsintercalationPhysical and theoretical chemistryQD450-801RUФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, Iss 13, Pp 18-24 (2021)
institution	DOAJ
collection	DOAJ
language	RU
topic	field desorption microscopy graphene field emitter alkali metals intercalation Physical and theoretical chemistry QD450-801
spellingShingle	field desorption microscopy graphene field emitter alkali metals intercalation Physical and theoretical chemistry QD450-801 D.P. Bernatskii V.G. Pavlov FIELD DESORPTION OF INTERCALATED CAESIUM ATOMS FROM GRAPHENE ON THE (100) IRIDIUM FACE
description	The desorption of caesium atoms from the quasi-spherical carbonized surface of an iridium single crystal was studied using the field desorption microscopy. Field electron and desorption images of the surface during the formation of graphene on the (100) iridium face are obtained. The field electron images of the emitter surface before intercalation and after intercalation of graphene with caesium atoms do not change. The electric field stimulates the desorption of caesium atoms from the intercalated state, due to the breaking of the bonds of the extreme carbon atoms with the surface of the face (100) of iridium. Using frame-by-frame recording, the possibility is shown of observing the localization of graphene layer defects on the surface of the field emitter. It is also shown that the field desorption of caesium atoms from the intercalated state begins with graphene defects located along the perimeter of the graphene island. It is found that desorption centers can be located not only along the perimeter of the graphene island, but also in its central part in the case of the disordered graphene formation.
format	article
author	D.P. Bernatskii V.G. Pavlov
author_facet	D.P. Bernatskii V.G. Pavlov
author_sort	D.P. Bernatskii
title	FIELD DESORPTION OF INTERCALATED CAESIUM ATOMS FROM GRAPHENE ON THE (100) IRIDIUM FACE
title_short	FIELD DESORPTION OF INTERCALATED CAESIUM ATOMS FROM GRAPHENE ON THE (100) IRIDIUM FACE
title_full	FIELD DESORPTION OF INTERCALATED CAESIUM ATOMS FROM GRAPHENE ON THE (100) IRIDIUM FACE
title_fullStr	FIELD DESORPTION OF INTERCALATED CAESIUM ATOMS FROM GRAPHENE ON THE (100) IRIDIUM FACE
title_full_unstemmed	FIELD DESORPTION OF INTERCALATED CAESIUM ATOMS FROM GRAPHENE ON THE (100) IRIDIUM FACE
title_sort	field desorption of intercalated caesium atoms from graphene on the (100) iridium face
publisher	Tver State University
publishDate	2021
url	https://doaj.org/article/8fcb37324a124653aa77e750cb211144
work_keys_str_mv	AT dpbernatskii fielddesorptionofintercalatedcaesiumatomsfromgrapheneonthe100iridiumface AT vgpavlov fielddesorptionofintercalatedcaesiumatomsfromgrapheneonthe100iridiumface
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FIELD DESORPTION OF INTERCALATED CAESIUM ATOMS FROM GRAPHENE ON THE (100) IRIDIUM FACE

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