The University of Southampton
University of Southampton Institutional Repository

Control over the charge transfer in dye-nanoparticle decorated graphene

Control over the charge transfer in dye-nanoparticle decorated graphene
Control over the charge transfer in dye-nanoparticle decorated graphene

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.

0009-2614
176-182
Bongu, Sudhakara Reddy
0570d0c3-f0f8-42fe-afde-ab736b47bdb0
Veluthandath, Aneesh V.
6a183413-e10f-4374-bc64-a33bf7fd9cfa
Nanda, B. R.K.
0d9ecf3d-f7c5-4ab5-89e9-57a764d85c87
Ramaprabhu, Sundara
2253a98c-9bd5-46d7-8ac1-25dadd9ed10d
Bisht, Prem B.
9e617371-071b-48b1-9f33-2801ea08cace
Bongu, Sudhakara Reddy
0570d0c3-f0f8-42fe-afde-ab736b47bdb0
Veluthandath, Aneesh V.
6a183413-e10f-4374-bc64-a33bf7fd9cfa
Nanda, B. R.K.
0d9ecf3d-f7c5-4ab5-89e9-57a764d85c87
Ramaprabhu, Sundara
2253a98c-9bd5-46d7-8ac1-25dadd9ed10d
Bisht, Prem B.
9e617371-071b-48b1-9f33-2801ea08cace

Bongu, Sudhakara Reddy, Veluthandath, Aneesh V., Nanda, B. R.K., Ramaprabhu, Sundara and Bisht, Prem B. (2016) Control over the charge transfer in dye-nanoparticle decorated graphene. Chemical Physics Letters, 644, 176-182. (doi:10.1016/j.cplett.2015.12.023).

Record type: Article

Abstract

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.

This record has no associated files available for download.

More information

Accepted/In Press date: 9 December 2015
e-pub ahead of print date: 17 December 2015
Published date: 16 January 2016

Identifiers

Local EPrints ID: 444636
URI: http://eprints.soton.ac.uk/id/eprint/444636
ISSN: 0009-2614
PURE UUID: 8ce9b4a0-6742-42f3-9d7c-4d5c5ebe8457
ORCID for Aneesh V. Veluthandath: ORCID iD orcid.org/0000-0003-4306-6723

Catalogue record

Date deposited: 28 Oct 2020 17:30
Last modified: 18 Mar 2024 03:56

Export record

Altmetrics

Contributors

Author: Sudhakara Reddy Bongu
Author: B. R.K. Nanda
Author: Sundara Ramaprabhu
Author: Prem B. Bisht

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×