Semiconductors, volume 49, issue 3, pages 373-379
Optical and structural properties of ensembles of colloidal Ag2S quantum dots in gelatin
O. V. Ovchinnikov
1
,
M. S. Smirnov
1
,
B. I. SHAPIRO
2
,
T S Shatskikh
1
,
A. S. Perepelitsa
1
,
N V Korolev
1
2
Moscow State University of Fine Chemical Technologies, Moscow, Russia
|
Publication type: Journal Article
Publication date: 2015-03-03
Journal:
Semiconductors
Q4
Q4
SJR: 0.173
CiteScore: 1.5
Impact factor: 0.6
ISSN: 10637826, 10906479, 17267315, 09412751
Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Abstract
The size dependences of the absorption and luminescence spectra of ensembles of hydrophilic colloidal Ag2S quantum dots produced by the sol-gel method and dispersed in gelatin are analyzed. By X-ray diffraction analysis and transmission electron microscopy, the formation of core/shell nanoparticles is detected. The characteristic feature of the nanoparticles is the formation of crystalline cores, 1.5–2.0 nm in dimensions, and shells of gelatin and its complexes with the components of synthesis. The observed slight size dependence of the position of infrared photoluminescence bands (in the range 1000–1400 nm) in the ensembles of hydrophilic colloidal Ag2S quantum dots is explained within the context of the model of the radiative recombination of electrons localized at structural and impurity defects with free holes.
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Ovchinnikov O. V. et al. Optical and structural properties of ensembles of colloidal Ag2S quantum dots in gelatin // Semiconductors. 2015. Vol. 49. No. 3. pp. 373-379.
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Ovchinnikov O. V., Smirnov M. S., SHAPIRO B. I., Shatskikh T. S., Perepelitsa A. S., Korolev N. V. Optical and structural properties of ensembles of colloidal Ag2S quantum dots in gelatin // Semiconductors. 2015. Vol. 49. No. 3. pp. 373-379.
Cite this
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TY - JOUR
DO - 10.1134/S1063782615030173
UR - https://doi.org/10.1134/S1063782615030173
TI - Optical and structural properties of ensembles of colloidal Ag2S quantum dots in gelatin
T2 - Semiconductors
AU - Ovchinnikov, O. V.
AU - Smirnov, M. S.
AU - SHAPIRO, B. I.
AU - Shatskikh, T S
AU - Perepelitsa, A. S.
AU - Korolev, N V
PY - 2015
DA - 2015/03/03
PB - Pleiades Publishing
SP - 373-379
IS - 3
VL - 49
SN - 1063-7826
SN - 1090-6479
SN - 1726-7315
SN - 0941-2751
ER -
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@article{2015_Ovchinnikov,
author = {O. V. Ovchinnikov and M. S. Smirnov and B. I. SHAPIRO and T S Shatskikh and A. S. Perepelitsa and N V Korolev},
title = {Optical and structural properties of ensembles of colloidal Ag2S quantum dots in gelatin},
journal = {Semiconductors},
year = {2015},
volume = {49},
publisher = {Pleiades Publishing},
month = {mar},
url = {https://doi.org/10.1134/S1063782615030173},
number = {3},
pages = {373--379},
doi = {10.1134/S1063782615030173}
}
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Ovchinnikov, O. V., et al. “Optical and structural properties of ensembles of colloidal Ag2S quantum dots in gelatin.” Semiconductors, vol. 49, no. 3, Mar. 2015, pp. 373-379. https://doi.org/10.1134/S1063782615030173.