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Proceedings Paper

White fluorescent nano-fibers prepared by periodic organic hetero-epitaxy
Author(s): G. Schwabegger; F. Quochi; G. Hernandez-Sosa; T. Djuric; G. Bongiovanni; A. Vollmer; M. Oehzelt; I. Salzmann; R. Resel; N. Koch; H. Sitter; C. Simbrunner
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Paper Abstract

To preserve the morphological properties of para-hexaphenyl (p-6P) based nano- bers and simultaneously tune their emission wavelength, periodic organic-organic hetero-epitaxy was utilized. Multilayer structures of p-6P and -sexithiophene (6T) have been prepared by hot wall epitaxy and analyzed by scanning force microscopy, uorescence microscopy, X-ray di raction and time resolved spectroscopy. We demonstrate that organic heteroepitaxy can be applied to produce multilayered nano- bers with high crystallinity, well de ned epitaxial relationships along di erent material phases, molecular azimuthal order, and long-range morphological homogeneity. It is shown, that it is possible to precisely control and tune the highly polarized photoluminescence emission of the nano- bers from the blue to the green and orange spectral regime by a variation of the 6T concentration. Remarkably, it is possible to prepare nano- bers emitting white polarized light.

Paper Details

Date Published: 10 September 2013
PDF: 7 pages
Proc. SPIE 8827, Optical Processes in Organic Materials and Nanostructures II, 882707 (10 September 2013); doi: 10.1117/12.2023033
Show Author Affiliations
G. Schwabegger, Johannes Kepler Univ. Linz (Austria)
F. Quochi, SLACS-INFM, CNR, Univ. di Cagliari (Italy)
G. Hernandez-Sosa, Johannes Kepler Univ. Linz (Austria)
T. Djuric, Technische Univ. Graz (Austria)
G. Bongiovanni, SLACS-INFM, CNR, Univ. di Cagliari (Italy)
A. Vollmer, Helmholtz Zentrum Berlin für Materialien und Energie GmbH (Germany)
M. Oehzelt, Helmholtz Zentrum Berlin für Materialien und Energie GmbH (Germany)
I. Salzmann, Humboldt-Univ. zu Berlin (Germany)
R. Resel, Technische Univ. Graz (Austria)
N. Koch, Humboldt-Univ. zu Berlin (Germany)
H. Sitter, Johannes Kepler Univ. Linz (Austria)
C. Simbrunner, Johannes Kepler Univ. Linz (Austria)


Published in SPIE Proceedings Vol. 8827:
Optical Processes in Organic Materials and Nanostructures II
Manfred Eich; Jean-Michel Nunzi; Rachel Jakubiak, Editor(s)

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