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Surface Functionalization and Electronic Interactions of ZnO Nanorods With a Porphyrin Derivative

Martin Klaumünzer, Axel Kahnt, Alexandra Burger, Mirza Mačković, Corinna Münzel, Rubitha Srikantharajah, Erdmann Spiecker, Andreas Hirsch, Wolfgang Peukert, Dirk M Guldi

ACS Appl Mater Interfaces. 2014 May 14;6(9):6724-30.

PMID: 24665864

Abstract:

To optimize electron transfer and optoelectronic properties in nanoparticulate thin films for electronics we show the surface functionalization of ZnO nanorods by means of replacing surface active 2-[2-(2-methoxyethoxy)ethoxy]acetic acid (TODA) by a redoxactive organic component, that is, 5,10,15,20-(phenoxyacetat)-porphyrin bearing four carboxylic acids as possible ZnO anchors. Microscopy-transmission electron microscopy-and spectroscopy-optical spectroscopy-verifies the successful and homogenous integration of the porphyrin onto the surface of ZnO nanorods, a process that is facilitated by the four anchoring groups. Photophysical investigations based on emission and absorption spectroscopy prompt to distinct electronic interactions between ZnO nanorods and the porphyrins. Consequently, we performed further photophysical studies flanked by pulse radiolysis assays to corroborate the nature of the electronic interactions.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP16024581 2-[2-(2-Methoxyethoxy)ethoxy]acetic acid 2-[2-(2-Methoxyethoxy)ethoxy]acetic acid 16024-58-1 Price
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