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Chemical Vapor Functionalization of ZnO Nanocrystals

Published online by Cambridge University Press:  01 February 2011

Moazzam Ali ,
Marty D. Donakowski  and
Markus Winterer
Moazzam Ali
Affiliation:
[email protected], University Duisburg-Essen, Nanoparticle Process Technology, Duisburg, Germany
Marty D. Donakowski
Affiliation:
[email protected], University of Minnesota, Department of Chemistry, Minneapolis, United States
Markus Winterer
Affiliation:
[email protected], University Duisburg-Essen, Nanoparticle Process Technology, Duisburg, Germany
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Abstract

Chemical Vapor Functionalization (CVF) is a method in which nanocrystals undergo in situ functionalization in the gas phase. In CVF, two reactors are used in series. The first reactor consists of a hot quartz tube (1073 K) where ZnO nanocrystals are synthesized in the gas phase from diethylzinc and oxygen. The second reactor, connected at the exit of the first one and kept at lower temperature (673 K), is used as functionalization chamber. At the connecting point of the two reactors, vapors of organic functionalizing agents are injected which react with the surface of ZnO nanocrystals. ZnO nanocrystals have been functionalized by 1-hexanol, n-hexanoic acid, n-hexanal and 1-hexylamine. Functionalized ZnO nanocrystals have been characterized by Dynamic Light Scattering, X-ray Diffraction and Diffuse Reflectance Infrared Fourier Transform Spectroscopy.

Keywords

aerogelchemical vapor deposition (CVD) (chemical reaction)nanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1260: Symposium T – Photovoltaics and Optoelectronics from Nanoparticles , 2010 , 1260-T01-05
Copyright
Copyright © Materials Research Society 2010

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