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Issue 6, 2017
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Charge transfer-induced assembly of a gold nanocomposite mediated by N-methylfulleropyrrolidine: excitation energy transfer from Rhodamine B

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Abstract

We report here the structure–property correlations in a new N-methylfulleropyrrolidine derivative mediated 3-mercaptopropanoic acid capped gold nanocomposite, designed, synthesized and monitored by UV-visible spectroscopy, transmission electron microscopy, dynamic light scattering and pH of the reaction medium. The computational assessments further provided in-depth knowledge on the nanocomposite structure and interaction. In addition, the composite's interaction with a pure fluorescent dye, Rhodamine B, implied energy transfer from the dye to the composite, studied via fluorescence lifetime spectroscopy. A significant quenching in photoluminescence intensity and shortening of the lifetime of the pure dye were revealed upon its interaction with the composite. Upon changing the molar ratio, a characteristic surface energy transfer (SET) from the dye to the composite following a distance dependence of 1/r4 was concluded. This investigation into correlation between spectroscopic properties and nanoscale structure provided a base for novel functional materials.

Graphical abstract: Charge transfer-induced assembly of a gold nanocomposite mediated by N-methylfulleropyrrolidine: excitation energy transfer from Rhodamine B

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Supplementary files

Article information


Submitted
24 Sep 2016
Accepted
15 Feb 2017
First published
16 Feb 2017

New J. Chem., 2017,41, 2401-2408
Article type
Paper

Charge transfer-induced assembly of a gold nanocomposite mediated by N-methylfulleropyrrolidine: excitation energy transfer from Rhodamine B

S. Sutradhar and A. Patnaik, New J. Chem., 2017, 41, 2401
DOI: 10.1039/C6NJ03019J

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