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|Title:||Up-Conversion Photoluminescence in Polyfluorene Doped with Metal(II)-Octaethyl Porphyrins||Authors:||Keivanidis, Panagiotis E.
|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://ktisis.cut.ac.cy/handle/10488/18162||ISSN:||0935-9648||DOI:||10.1002/adma.200305717||Rights:||© John Wiley & Sons||Type:||Article||Affiliation :||SONY International (Europe)
Bergische Universitaet Wuppertal
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