Preparation, characterization, and nonlinear optical properties of graphene oxide thin film doped with low chirality metallic SWCNTs
| Autor: | Asmaa M. Abozied, Emad A. Al-Ashkar, A. Abouelsayed, A.F. Hassan, Ayman M. Mostafa, Badawi Anis, Ashraf Ramadan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Z-scan Scanning electron microscope Oxide 02 engineering and technology Carbon nanotube NLO 01 natural sciences law.invention Biomaterials chemistry.chemical_compound symbols.namesake law 0103 physical sciences Thin film High-resolution transmission electron microscopy Graphene oxide 010302 applied physics Mining engineering. Metallurgy business.industry Graphene Metals and Alloys TN1-997 021001 nanoscience & nanotechnology Laser Surfaces Coatings and Films chemistry Ceramics and Composites symbols Optoelectronics Low chirality metallic-SWCNTs 0210 nano-technology business Raman spectroscopy |
| Zdroj: | Journal of Materials Research and Technology, Vol 12, Iss, Pp 1461-1472 (2021) |
| ISSN: | 2238-7854 |
| Popis: | We present non-linear optical properties of graphene oxide (GO) doped with low chirality metallic single walled carbon nanotubes (m-SWCNTs) thin films. The weight percentage of the m-SWCNTs was 5, 10, and 20 wt%. High-resolution transmission electron microscope (HRTEM), high resolution scanning electron microscope (HRSEM), Raman, and UV–vis spectroscopy were used to characterize the prepared samples. We have investigated their nonlinear optical properties using open and closed Z-scan technique at Nd:YAG laser at 1064 nm laser pulses (7 ns, 10 Hz). The nonlinear absorption coefficient β, nonlinear refractive index n2, and third order nonlinear susceptibility χ3 were calculated. The results show that all samples exhibit reverse saturable absorption (RSA) because of increasing metallicity and/or partial reduction of GO during laser illumination. The nonlinearity response of the GO/m-SWCNT films increase as the m-SWCNTs percentage increases. The high non-linear optical parameters of the GO/m-SWCNTs films make them as superior candidates for near-infrared (NIR) laser protection applications. |
| Databáze: | OpenAIRE |
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