Ramakrishna Matte, H.S.S. ; Subrahmanyam, K.S. ; Venkata Rao, K. ; George, Subi J. ; Rao, C.N.R. (2011) Quenching of fluorescence of aromatic molecules by graphene due to electron transfer Chemical Physics Letters, 506 (4-6). pp. 260-264. ISSN 0009-2614
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Official URL: http://doi.org/10.1016/j.cplett.2011.03.031
Related URL: http://dx.doi.org/10.1016/j.cplett.2011.03.031
Abstract
Investigations on the fluorescence quenching of graphene have been carried out with two organic donor molecules, pyrene butanaoic acid succinimidyl ester (PyBS, I) and oligo(p-phenylenevinylene) methyl ester (OPV-ester, II). Absorption and photoluminescence spectra of I and II recorded in mixture with increasing the concentrations of graphene showed no change in the former, but remarkable quenching of fluorescence. The property of graphene to quench fluorescence of these aromatic molecules is shown to be associated with photo-induced electron transfer, on the basis of fluorescence decay and time-resolved transient absorption spectroscopic measurements.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 117777 |
| Deposited On: | 03 May 2021 09:52 |
| Last Modified: | 03 May 2021 09:52 |
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