Non-radiative resonance energy transfer in bi-polymer nanoparticles of fluorescent conjugated polymers
Demir, Hilmi Volkan
Optical Society of American (OSA)
670 - 684
Item Usage Stats
This work demonstrates the comparative studies of non-radiative resonance energy transfer in bi-polymer nanoparticles based on fluorescent conjugated polymers. For this purpose, poly[(9,9-dihexylfluorene) (PF) as a donor (D) and poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) as an acceptor (A) have been utilized, from which four different bi-polymer nanoparticle systems are designed and synthesized. Both, steady-state fluorescence spectra and time-resolved fluorescence measurements indicate varying energy transfer efficiencies from the host polymer PF to the acceptor polymer MEH-PPV depending on the D-A distances and structural properties of the nanoparticles. The first approach involves the preparation of PF and MEH-PPV nanoparticles separately and mixing them at a certain ratio. In the second approach, first PF and MEH-PPV solutions are mixed prior to nanoparticle formation and then nanoparticles are prepared from the mixture. Third and fourth approaches involve the sequential nanoparticle preparation. In the former, nanoparticles are prepared to have PF as a core and MEH-PPV as a shell. The latter is the reverse of the third in which the core is MEH-PPV and the shell is PF. The highest energy transfer efficiency recorded to be 35% is obtained from the last system, in which a PF layer is sequentially formed on MEH-PPV NPs. © 2010 Optical Society of America.
Energy transfer efficiency
Fluorescent conjugated polymers
Resonance energy transfer
Time-resolved fluorescence measurements
fluorescence resonance energy transfer
Fluorescence Resonance Energy Transfer
Published Version (Please cite this version)http://dx.doi.org/10.1364/OE.18.000670
Showing items related by title, author, creator and subject.
Novel design-based complex nanostructures in hybrid core-shell architectures for high-efficiency light generation Özel, İlkem Özge (Bilkent University, 2010)Recent developments in nanoscience and nanotechnology have given rise to the discovery of hybrid nanostructured multi-component materials that serve several tasks all at once. A very important and rapidly growing field ...
Tuncel, D.; Demir, Hilmi Volkan (2010)Conjugated polymer nanoparticles are highly versatile nano-structured materials that can potentially find applications in various areas such as optoelectronics, photonics, bio-imaging, bio-sensing and nanomedicine. Their ...
Broadband optical transparency in plasmonic nanocomposite polymer films via exciton-plasmon energy transfer Dhama R.; Rashed, A. R.; Caligiuri V.; El Kabbash M.; Strangi, G.; De Luca A. (OSA - The Optical Society, 2016)Inherent absorptive losses affect the performance of all plasmonic devices, limiting their fascinating applications in the visible range. Here, we report on the enhanced optical transparency obtained as a result of the ...