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A new mild synthesis and optical properties of colloidal ZnO nanocrystals in dimethylformamide/ethanol solutions

Published online by Cambridge University Press:  19 November 2013

Yaroslav V. Panasyuk ,
Oleskandra E. Rayevska ,
Oleksandr L. Stroyuk  and
Stepan Ya. Kuchmiy
Yaroslav V. Panasyuk
Affiliation:
L.V. Pysarzhevsky Institute of Physical Chemistry of National Academy of Sciences of Ukraine, 31 Nauky av., 03028, Kyiv, Ukraine
Oleskandra E. Rayevska
Affiliation:
L.V. Pysarzhevsky Institute of Physical Chemistry of National Academy of Sciences of Ukraine, 31 Nauky av., 03028, Kyiv, Ukraine
Oleksandr L. Stroyuk
Affiliation:
L.V. Pysarzhevsky Institute of Physical Chemistry of National Academy of Sciences of Ukraine, 31 Nauky av., 03028, Kyiv, Ukraine
Stepan Ya. Kuchmiy
Affiliation:
L.V. Pysarzhevsky Institute of Physical Chemistry of National Academy of Sciences of Ukraine, 31 Nauky av., 03028, Kyiv, Ukraine
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Abstract

A green and mild synthesis of colloidal zinc oxide nanocrystals in ethanol/dimethylformamide mixtures was introduced which allows to produce stable crystalline ZnO particles and tailor their average size in the range of 2.8−4.5 nm by varying temperature and duration of post-synthesis ageing. An increase in dimethylformamide fraction in the mixture results in acceleration of ZnO nanocrystals ripening. Colloidal ZnO nanocrystals emit broadband photoluminescence in the range of 2−3 eV with the quantum yields of up to 12 %.

Keywords

ZnO nanocrystalsluminescencecolloidal particles
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1617: Symposium 7E – Low-Dimensional Semiconductor Structures , 2013 , pp. 119 - 124
Copyright
Copyright © Materials Research Society 2013 

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References

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