Hyper-Efficient Quenching of Non-Conjugated Pendant Polymer by Silver Nanoparticles: A Demonstration and Versatile Mechanistic PropositionChemical Physics Letters (2012)
Hyper-efficient quenching of fluorescence of non-conjugated polymer poly(N-vinylcarbazole) by silver nanoparticles is demonstrated. The quenching efficiency increases with an increase in the length of the polymer chain containing the pendant chromophore units. The Stern–Volmer constants (109–1010 mol−1 dm3) are found to be orders of magnitude higher than the normal photochemical quenching processes. Although nanoparticle induced hyper-quenching is reported for conjugated polymers, similar observation in non-conjugated polymers is unprecedented. A versatile mechanism is proposed that rationalizes the hyper-quenching of both conjugated and non-conjugated polymers.
- Silver nanoparticles,
Publication DateApril 12, 2012
Citation InformationDebanjana Ghosh and Nitin Chattopadhyay. "Hyper-Efficient Quenching of Non-Conjugated Pendant Polymer by Silver Nanoparticles: A Demonstration and Versatile Mechanistic Proposition" Chemical Physics Letters Vol. 532 (2012) p. 52 - 56
Available at: http://works.bepress.com/debanjana-ghosh/5/