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Colloidal indium sulfide quantum dots in water: synthesis and optical properties

Published online by Cambridge University Press:  19 November 2013

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

Colloidal β-In2S3 quantum dots stabilized in water by a number of polymers or sodium polyphosphate and mercaptoacetate were synthesized. An increase in the stabilizer content was found to result in a decrease in the average dot size from 20–30 to 5–10 nm and formation of a narrow absorption band centered at 290 nm. The position and spectral width of the band were found to be independent on stabilizer concentration, synthesis temperature and molar In:S ratio. The band was assumed to belong to a molecular cluster smaller than 1 nm which is a precursor for formation of larger regular indium sulfide quantum dots.

Keywords

luminescencecolloidal particlesindium sulfide

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Type
Articles
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MRS Online Proceedings Library (OPL) , Volume 1617: Symposium 7E – Low-Dimensional Semiconductor Structures , 2013 , pp. 163 - 169
Copyright
Copyright © Materials Research Society 2013 

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References

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