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Control over the charge transfer in dye-nanoparticle decorated graphene
Published in Elsevier
2016
Volume: 644
Pages: 176 - 182
Charge transfer interaction between silver decorated graphene and three differently charged dyes, cationic (rhodamine 6G), neutral (rhodamine B) and anionic (fluorescein 27) has been studied. The ground state association constants have been evaluated and changes in the fluorescence intensity and lifetimes have been obtained in two solvents. Strength of complex-formation has been found to be higher with the cationic molecule in water. In a higher viscosity solvent, the ground state complex formation is restricted. Local field of localized surface plasmons of nanoparticles adsorbed on the graphene sheets leads to enhanced absorption and fluorescence of fluorescein 27. © 2015 Elsevier B.V. All rights reserved.
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About the journal
| Journal | Data powered by TypesetChemical Physics Letters |
|---|---|
| Publisher | Data powered by TypesetElsevier |
| ISSN | 00092614 |
| Open Access | No |
Authors (3)
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Concepts (14)
Dyes- Fluorescence
- Graphene
- Ground state
- Nanoparticles
- Association constant
- CATIONIC MOLECULES
- CHARGE TRANSFER INTERACTION
- Complex formations
- ENHANCED ABSORPTION
- Fluorescence intensities
- Graphene sheets
- LOCALIZED SURFACE PLASMON
- Charge transfer
