Up-Conversion Photoluminescence in Polyfluorene Doped with Metal(II)-Octaethyl Porphyrins

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/18162

Title:	Up-Conversion Photoluminescence in Polyfluorene Doped with Metal(II)-Octaethyl Porphyrins
Authors:	Keivanidis, Panagiotis E. Baluschev, Stanislav Miteva, Tzenka Nelles, Gabriele Scherf, Ullrich Yasuda, Akio Wegner, Gerhard
Major Field of Science:	Engineering and Technology
Field Category:	Mechanical Engineering
Keywords:	Absorption;Continuous wave lasers;Density (optical);Doping (additives);Fluorescence;Gas lasers;Liquid crystals;Molecular vibrations;Morphology;Neodymium lasers
Issue Date:	17-Dec-2003
Source:	Advanced Materials, 2003, vol. 15, iss. 24, pp. 2095-2098
Volume:	15
Issue:	24
Start page:	2095
End page:	2098
Journal:	Advanced Materials
Abstract:	The quasi-continuous wave (cw) up-conversion in polyfluorenes (PF) films doped with metal (II)-octaethyl porphyrins was studied. An intercavity frequency-doubled diode-pumped cw-Nd:YAG laser and the green line of a helium-neon laser were used as pumping sources. The efficiency of the up-conversion process in poly(9,9-bis(2-ethylhexyl)fluorene):Pd(2,7,8,12,13,17,18-octaethyl-porphyri nato) (PF2/6:PdOEP) was estimated by direct excitation of the active host polymer by pumping at 405 nm. The results show that the pump intensities were five orders of magnitude lower than the pump intensities used.
URI:	https://hdl.handle.net/20.500.14279/18162
ISSN:	09359648
DOI:	10.1002/adma.200305717
Rights:	© John Wiley & Sons
Type:	Article
Affiliation :	SONY Bergische Universitaet Wuppertal
Appears in Collections:	Άρθρα/Articles

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