An effective dialysis method for surface funtionalization of nanoparticles in liquid phase - Sample: Porphyrine derivatives @ ZnO-Nanorods

Klaumünzer M, Münzel C, Burger A, Mackovic M, Voigt M, Spiecker E, Hirsch A, Peukert W (2013)

Publication Type: Conference contribution, Conference Contribution

Publication year: 2013

Original Authors: Klaumünzer M., Münzel C., Burger A., Mackovi M., Voigt M., Spiecker E., Hirsch A., Peukert W.

Book Volume: 1

Pages Range: 690-691

Event location: Washington, DC

URI: https://www.scopus.com/record/display.uri?eid=2-s2.0-84881092806&origin=inward

Abstract

In order to optimize electron transfer and optoelectronic properties in nanoparticulate thin films for electronics we show the surface functionalization of ZnO nanorods by exchanging the stabilizing 2-[2-(2-Mefhoxyefhoxy)-ethoxy] acetic acid at the ZnO surface with redoxactive organic molecules. Surface functionalization is undertaken by an efficient dialysis method. Emission- and absorption-spectroscopy indicate an effective electronic interaction between the ZnO nanorods and the pophyrine derivatives. In addition, we discuss on the binding mechanism and the ligand exchange kinetics of the porphyrine molecules. Our experiments suggest a better and faster binding to the ZnO nanorod surface for porphyrine A than for porphyrine B. This can be explained by steric effects. Moreover we claim a fourfold anchored binding for porphyrine A and we shed light on entropic effects during ligand exchange.

Authors with CRIS profile

Martin Klaumünzer Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Alexandra Burger Lehrstuhl für Organische Chemie II Mirza Mackovic Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Michael Voigt Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Erdmann Spiecker Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Andreas Hirsch Lehrstuhl für Organische Chemie II Wolfgang Peukert Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

How to cite

APA:

Klaumünzer, M., Münzel, C., Burger, A., Mackovic, M., Voigt, M., Spiecker, E.,... Peukert, W. (2013). An effective dialysis method for surface funtionalization of nanoparticles in liquid phase - Sample: Porphyrine derivatives @ ZnO-Nanorods. In Proceedings of the Nanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 (pp. 690-691). Washington, DC.

MLA:

Klaumünzer, Martin, et al. "An effective dialysis method for surface funtionalization of nanoparticles in liquid phase - Sample: Porphyrine derivatives @ ZnO-Nanorods." Proceedings of the Nanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013, Washington, DC 2013. 690-691.

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