Development of a nanocomposite system by combining an organic dyad 1-(4-chloro-phenyl)-3-(4-methoxy-naphthalen-1-yl)-Propenone with semiconductor TiO2 nanoparticles.

J Nanosci Nanotechnol

Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur Kolkata 700032, India.

Published: January 2010

AI Article Synopsis

  • The study examines an organic compound (dyad) that includes a donor and acceptor connected by a double bond, with tests conducted at room temperature using TiO2 nanoparticles.
  • Time-resolved fluorescence measurements show that when the medium shifts from chloroform to TiO2 nanoparticles, the rate of charge separation in the dyad increases while the rate of charge recombination decreases.
  • These findings suggest that integrating the dyad with TiO2 nanoparticles could lead to the creation of effective organic-inorganic nanocomposite systems for light energy conversion applications.

Article Abstract

Steady state and time resolved spectroscopic measurements on an organic dyad, 1-(4-chlorophenyl)-3-(4-methoxy-naphthalen-1-yl)-propenone, where the donor 1-methoxynaphthalene is connected with the acceptor p-chloroacetophenone by an unsaturated olefinic bond, in presence of TiO2 nanoparticles were made at the ambient temperature. Time resolved fluorescence measurements reveal that the rate parameters associated with charge separation, kCS, within the dyad increases whereas charge recombination rate reduces when the surrounding medium is changed from chloroform to TiO2 nanoparticles. The observed results indicate that the dyad being combined with TiO2 nanoparticles may form organic-inorganic nanocomposite systems useful for developing light energy conversion devices.

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Source
http://dx.doi.org/10.1166/jnn.2010.1820DOI Listing

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