Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/25418
Título: | Enhancement of graphene visibility on transparent substrates by refractive index optimization |
Autor(es): | Gonçalves, Hugo Alves, Luis Moura, C. Belsley, M. Stauber, Tobias Pascal Schellenberg, Peter Michael |
Palavras-chave: | Graphene Visibility Graphene contrast Graphene absorption |
Data: | 20-Mai-2013 |
Editora: | Optical Society of America |
Revista: | Optics Express |
Resumo(s): | Optical reflection microscopy is one of the main imaging tools to visualize graphene microstructures. Here is reported a novel method that employs refractive index optimization in an optical reflection microscope, which greatly improves the visibility of graphene flakes. To this end, an immersion liquid with a refractive index that is close to that of the glass support is used in-between the microscope lens and the support improving the contrast and resolution of the sample image. Results show that the contrast of single and few layer graphene crystals and structures can be enhanced by a factor of 4 compared to values commonly achieved with transparent substrates using optical reflection microscopy lacking refractive index optimization. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/25418 |
DOI: | 10.1364/OE.21.012934 |
ISSN: | 1094-4087 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - FAMO - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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gonc13_Opt_Expr.pdf Acesso restrito! | paper | 1,63 MB | Adobe PDF | Ver/Abrir |