Study of the Optical Properties of CdZnSe/ZnS-Quantum Dot–Au-Nanoparticle Complexes
- Авторы: Volgina D.A.1, Stepanidenko E.A.1, Kormilina T.K.1, Cherevkov S.A.1, Dubavik A.1, Baranov M.A.1, Litvin A.P.1, Fedorov A.V.1, Baranov A.V.1, Takai K.2, Samokhvalov P.S.3, Nabiev I.R.3, Ushakova E.V.1
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Учреждения:
- ITMO University
- Hosei University
- Laboratory of Nano-Bioengineering
- Выпуск: Том 124, № 4 (2018)
- Страницы: 494-500
- Раздел: Condensed-Matter Spectroscopy
- URL: https://ogarev-online.ru/0030-400X/article/view/165673
- DOI: https://doi.org/10.1134/S0030400X18040185
- ID: 165673
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Аннотация
The interaction of gold nanoparticles (NPs) and semiconductor alloyed CdZnSe/ZnS quantum dots (QDs) in colloidal solutions is studied. It is shown that the photoluminescence intensity of QDs in a mixture decreases compared to that in the initial QD solution, which is caused by resonance nonradiative energy transfer from QDs to Au NPs in spontaneously formed aggregates. To control the formation of pairs of interacting QDs and Au NPs, we proposed have a method for creating QD–Au NP complexes bound by special molecules—ligands. It is shown that the morphology and optical properties of the samples obtained depend on the method of their preparation, in particular, on the chemical environment of QDs. It is found that the complexes form in the case of addition of hydrophilic Au NPs to hydrophobic QDs and that this almost does not change the optical properties of the latter compared to those of quasi-isolated QDs in colloidal solution.
Об авторах
D. Volgina
ITMO University
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
E. Stepanidenko
ITMO University
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
T. Kormilina
ITMO University
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
S. Cherevkov
ITMO University
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
A. Dubavik
ITMO University
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
M. Baranov
ITMO University
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
A. Litvin
ITMO University
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
A. Fedorov
ITMO University
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
A. Baranov
ITMO University
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
K. Takai
Hosei University
Email: el.ushakova@gmail.com
Япония, 3-7-2 Kajino, Koganei, 1848584 Tokyo
P. Samokhvalov
Laboratory of Nano-Bioengineering
Email: el.ushakova@gmail.com
Россия, Moscow, 115409
I. Nabiev
Laboratory of Nano-Bioengineering
Email: el.ushakova@gmail.com
Россия, Moscow, 115409
E. Ushakova
ITMO University
Автор, ответственный за переписку.
Email: el.ushakova@gmail.com
Россия, St. Petersburg, 197101
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