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http://hdl.handle.net/1843/57614| Type: | Artigo de Periódico |
| Title: | Thermo-optical response of colloidal metallic and semiconducting single-walled carbon nanotubes |
| Authors: | Nazareno Nelito da Silva Leal Antônio Carlos Brandão Silva Cristiano Fantini Leite Jandir Miguel Hickmann Eduardo Jorge da Silva Fonseca Márcio André Rodrigues Cavalcanti de Alencar |
| Abstract: | The thermo-optical responses of aqueous solutions of semiconducting and metallic carbon nanotubes were investigated using thermal-lens technique. The colloids thermal diffusivity, thermal lens strength and thermo-optical coefficient were measured. The results suggest that the presence of carbon nanotubes at low concentration does not change significantly the thermal diffusivity and conductivity of the colloidal system in comparison with pure water. However, the thermal lens strength presented a huge enhancement due to the presence of carbon nanotubes. It was also observed that the colloid containing semiconducting carbon nanotubes presents a larger thermo-optical coefficient than the system containing metallic tubes. The thermal contribution to the nonlinear refraction of the colloidal systems was characterized by Z-scan technique and their parameters of nonlocality were also evaluated. |
| Subject: | Nanotubos de carbono |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE FÍSICA |
| Rights: | Acesso Restrito |
| metadata.dc.identifier.doi: | https://doi.org/10.1016/j.optlastec.2019.03.027 |
| URI: | http://hdl.handle.net/1843/57614 |
| Issue Date: | 2019 |
| metadata.dc.url.externa: | https://www.sciencedirect.com/science/article/pii/S0030399218318346 |
| metadata.dc.relation.ispartof: | Optics & Laser Technology |
| Appears in Collections: | Artigo de Periódico |
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