Optical characterization of graphene-f-o-phenylenediamine and charge transfer interaction with organic dyes
| Autor: | Shubhayan Bhattacharya, Prem B. Bisht, Soumyodeep Dey, Vijay Kumar Sagar |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Quenching (fluorescence) Dye laser Graphene business.industry Composite number Doping 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Characterization (materials science) law.invention Rhodamine 6G chemistry.chemical_compound Wavelength chemistry law Optoelectronics General Materials Science 0210 nano-technology business |
| Zdroj: | Carbon. 166:15-25 |
| ISSN: | 0008-6223 |
| Popis: | Carbon based nanomaterials can effectively be doped to tailor their electronic and optical properties for various applications. In this work, we have synthesized and characterized the o-phenylenediamine doped graphene (G-f-OPD) to study the charge transfer with a standard laser dye rhodamine 6G (R6G). A comparison with pristine graphene shows that the static quenching efficiency of the graphene is 25 times higher than that of the G-f-OPD. Time-resolved measurements reveal the absence of dynamic quenching of the dye in presence of graphene and its nitrogen doped derivative. Nonlinear optical characterization of G-f-OPD has also been done in presence of R6G by degenerate four wave mixing (DFWM) technique. The measured values of third order optical nonlinearity ( χ ( 3 ) ) reveals the fact that the dominant contribution to the optical nonlinearity is due to its real part at the probe wavelength (532 nm). Furthermore, the nonlinear optical study by Z-Scan technique shows that G-f-OPD-R6G composite can be suitable for passive mode-locking applications. |
| Databáze: | OpenAIRE |
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