Crescimento de grafeno por CVD em folhas de cobre
| Ano de defesa: | 2011 |
|---|---|
| Autor(a) principal: | |
| Orientador(a): | |
| Banca de defesa: | |
| Tipo de documento: | Dissertação |
| Tipo de acesso: | Acesso aberto |
| Idioma: | por |
| Instituição de defesa: |
Universidade Federal de Minas Gerais
UFMG |
| Programa de Pós-Graduação: |
Não Informado pela instituição
|
| Departamento: |
Não Informado pela instituição
|
| País: |
Não Informado pela instituição
|
| Palavras-chave em Português: | |
| Link de acesso: | http://hdl.handle.net/1843/JCBV-8PALHG |
Resumo: | In this work we are interested in stablishing a condition to growth graphene by CVD (chemical vapor deposition) on copper sheets, using a high concentration of methane at atmospheric pressure. To achieve this study on the growth that extends from the heat treatment of the substrate to obtaining a graphene lm large area and good quality. Such lmswere characterized by Raman spectroscopy and UV-VIS, and optical microscopy. Analysis of Raman spectra reveal that the grown lm consists of monolayer graphene, with few centers of nucleation of carbon, and also has a low defect density. In addition, measurements of transmittance of the lm were performed showing that graphene is a promising material for applications in electrodes conductive and transparent. |