Jebb, Meghan ; Sudeep, P. K. ; Pramod, P. ; George Thomas, K. ; Kamat, Prashant V. (2007) Ruthenium(II) trisbipyridine functionalized gold nanorods. Morphological changes and excited-state interactions The Journal of Physical Chemistry B, 111 (24). pp. 6839-6844. ISSN 1089-5647
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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp070701j
Related URL: http://dx.doi.org/10.1021/jp070701j
Abstract
Gold nanorods synthesized using cetyltrimethylammonium bromide and tetraoctylammonium bromide as stabilizers are functionalized with a thiol derivative of ruthenium(II) trisbipyridyl complex [(Ru(bpy)32+-C5-SH] in dodecanethiol using a place-exchange reaction. The changes in the plasmon absorption bands and transmission electron micrographs indicate significant changes in the gold rod morphology during the place-exchange reaction. The (Ru(bpy)32+-C5-SH in its excited state undergoes quick deactivation when bound to gold nanorods. More than 60% of the emission was quenched when [(Ru(bpy)32+-C5-SH] was bound to gold nanorods. Emission decay analysis indicates that the energy transfer rate constant is greater than 1010 s−1.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 51412 |
| Deposited On: | 28 Jul 2011 11:47 |
| Last Modified: | 28 Jul 2011 11:47 |
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