Quantum efficiency enhancement in film by making nanoparticles of polyfluorene

Optics Express
Ilkem O HuyalHilmi V Demir

Abstract

We report on conjugated polymer nanoparticles of polyfluorene that were formed to exhibit higher fluorescence quantum efficiency in film (68%) and reduce undesired emission peak wavelength shifts in film (by 20 nm), compared to the solid-state polymer thin film made directly out of the same polymer solution without forming nanoparticles. Using the facile reprecipitation method, solutions of poly[9,9-dihexyl-9H-fluorene] in THF were added at different volume ratios to obtain different size distributions of nanoparticle dispersions in water. This allowed us to control the sizedependent optical emission of our polyfluorene nanoparticles. Such organic nanoparticles hold great promise for use as efficient emitters in optoelectronic device applications.

References

May 10, 2003·Nature Materials·Thomas KietzkeUllrich Scherf
Nov 13, 2004·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Naonori KurokawaHiroshi Masuhara
Jul 21, 2005·Journal of the American Chemical Society·Fuke WangYee-Hing Lai
Sep 2, 2005·Nature·Xun WangYadong Li
Mar 22, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Changfeng WuJason McNeill
Jul 21, 2006·The Journal of Physical Chemistry. B·Changfeng WuJason McNeill

❮ Previous
Next ❯

Citations

Jul 21, 2010·Nanoscale·Dönüs Tuncel, Hilmi Volkan Demir
Sep 4, 2013·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Ling-Hai XieWei Huang
Aug 6, 2010·Chemical Reviews·Johannes Pecher, Stefan Mecking
Jan 1, 2013·Journal of the American Chemical Society·Christoph S FischerStefan Mecking
Sep 6, 2017·ACS Omega·Timuçin BalkanDönüs Tuncel

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cell Imaging in CNS

Here is the latest research on cell imaging and imaging modalities, including light-sheet microscopy, in the central nervous system.