English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/155088
Título

Graphene patterning by nanosecond laser ablation: the effect of the substrate interaction with graphene

AutorPérez Mas, Ana Matilde ; Álvarez Rodríguez, Patricia ; Campos, Nuria; Gómez, David; Menéndez López, Rosa María
Palabras claveCVD Graphene,
Laser scribing
Nanosecond laser
Pulsed laser
Fecha de publicación7-jul-2016
EditorInstitute of Physics Publishing
CitaciónJournal of Physics D - Applied Physics 49: 305301 (2016)
ResumenThis paper focuses on the development of patterned graphene/substrate by means of green nanosecond pulse laser irradiation. Monolayer graphene samples supported on a Si/SiO2 substrate were patterned using 532 nm laser irradiation under fluence conditions ranging from 31 mJ/cm2 and to 4240 mJ/cm2. Raman spectroscopy was used to investigate the effect of laser irradiation on the graphene. It was found that at 356 mJ/cm2 selective ablation of the graphene occurs. However, at fluence values above 1030 mJ/cm2 (when damage to the substrate is observed) no ablation of the graphene takes place. In contrast, its graphenic structure was found to have been modified. Only at fluence values where the ablation of the substrate occurs, is graphene eliminated in an area almost equivalent to that of the ablated substrate. In this case, additional damage to the graphene sheet edges is produced. The increment in the number of oxygenated functional groups in these regions, as measured by XPS spectroscopy, suggests that this damage is probably caused by thermal phenomena during the ablation of the substrate.
Versión del editorhttps://doi.org/10.1088/0022-3727/49/30/305301
URIhttp://hdl.handle.net/10261/155088
DOI10.1088/0022-3727/49/30/305301
ISSN0022-3727
E-ISSN1361-6463
Aparece en las colecciones: (INCAR) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Graphene_pattering_Perez-Mas.pdf363 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.