Journal of Physical Chemistry C, volume 114, issue 51, pages 22478-22486
Synthesis and Characterization of White-Emitting CdS Quantum Dots Stabilized with Polyethylenimine
Oleksandra E Rayevska
1
,
Galyna Ya Grodzyuk
1
,
O. Stroyuk
1
,
Stepan Ya Kuchmiy
1
,
Victor F. Plyusnin
1
,
Vyacheslav P Grivin
1
,
Mykhailo Ya. Valakh
1
Publication type: Journal Article
Publication date: 2010-12-07
Journal:
Journal of Physical Chemistry C
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 3.7
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
We report on the synthesis and optical and structural characterization of ultrasmall (<2 nm) CdS nanoparticles with a narrow size distribution of 10% prepared in aqueous and alcohol solutions of polyethyleneimine (PEI). The PEI-stabilized CdS nanoparticles reveal a structured absorption band with the first excitonic maximum at 3.5 eV and broad-band photoluminescence with quantum yields of 12−14% in water, 18−20% in ethanol (80 vol %), and up to 60−70% in solid PEI films at room temperature. The nature of the photoluminescence was studied by using the time- and wavelength-dependent emission measurements. The role of precursor cadmium(II)−PEI complex in the formation of uniform and ultrasmall luminescent CdS nanoparticles, as well as the dynamic emission quenching by water, are discussed. A study of the photochemical properties of PEI-stabilized CdS nanoparticles both under continuous and nanosecond pulse illumination showed excellent stability of solid PEI films incorporating CdS nanoparticles toward UV il...
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Rayevska O. E. et al. Synthesis and Characterization of White-Emitting CdS Quantum Dots Stabilized with Polyethylenimine // Journal of Physical Chemistry C. 2010. Vol. 114. No. 51. pp. 22478-22486.
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Rayevska O. E., Grodzyuk G. Ya., Zahn D. R. T., Stroyuk O., Kuchmiy S. Ya., Plyusnin V. F., Grivin V. P., Valakh M. Y. Synthesis and Characterization of White-Emitting CdS Quantum Dots Stabilized with Polyethylenimine // Journal of Physical Chemistry C. 2010. Vol. 114. No. 51. pp. 22478-22486.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/jp108561u
UR - https://doi.org/10.1021/jp108561u
TI - Synthesis and Characterization of White-Emitting CdS Quantum Dots Stabilized with Polyethylenimine
T2 - Journal of Physical Chemistry C
AU - Rayevska, Oleksandra E
AU - Grodzyuk, Galyna Ya
AU - Kuchmiy, Stepan Ya
AU - Plyusnin, Victor F.
AU - Grivin, Vyacheslav P
AU - Zahn, Dietrich R. T.
AU - Stroyuk, O.
AU - Valakh, Mykhailo Ya.
PY - 2010
DA - 2010/12/07
PB - American Chemical Society (ACS)
SP - 22478-22486
IS - 51
VL - 114
SN - 1932-7447
SN - 1932-7455
ER -
Cite this
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@article{2010_Rayevska,
author = {Oleksandra E Rayevska and Galyna Ya Grodzyuk and Stepan Ya Kuchmiy and Victor F. Plyusnin and Vyacheslav P Grivin and Dietrich R. T. Zahn and O. Stroyuk and Mykhailo Ya. Valakh},
title = {Synthesis and Characterization of White-Emitting CdS Quantum Dots Stabilized with Polyethylenimine},
journal = {Journal of Physical Chemistry C},
year = {2010},
volume = {114},
publisher = {American Chemical Society (ACS)},
month = {dec},
url = {https://doi.org/10.1021/jp108561u},
number = {51},
pages = {22478--22486},
doi = {10.1021/jp108561u}
}
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Rayevska, Oleksandra E., et al. “Synthesis and Characterization of White-Emitting CdS Quantum Dots Stabilized with Polyethylenimine.” Journal of Physical Chemistry C, vol. 114, no. 51, Dec. 2010, pp. 22478-22486. https://doi.org/10.1021/jp108561u.