The effect of ionic strength on spectral properties of quantum dots and aluminum phthalocyanine complexes
- Авторлар: Gvozdev D.A.1, Maksimov E.G.1, Strakhovskaya M.G.1,2, Ivanov M.V.1, Paschenko V.Z.1, Rubin A.B.1
-
Мекемелер:
- Department of Biology
- Federal Research and Clinical Center of Specialized Types of Health Care and Medical Technologies
- Шығарылым: Том 12, № 1-2 (2017)
- Беттер: 73-85
- Бөлім: Article
- URL: https://journals.rcsi.science/2635-1676/article/view/219887
- DOI: https://doi.org/10.1134/S1995078017010050
- ID: 219887
Дәйексөз келтіру
Аннотация
The effect of ionic strength on spectral properties of negatively charged semiconductor (CdSe/ZnS) nanocrystals (quantum dots, QDs) and polycationic aluminum phthalocyanines (PCs) is considered. A QD/PC complex, formed via self-assembly, remains stable throughout a wide range of ionic strength values of a solution and [PC]/[QD] concentration ratio. The efficiency of nonradiative energy transfer from QDs to PCs rises with an increase in the ionic strength of solution. The fluorescence amplification factor of PC reduces with an increase in number of PC molecules in a complex with a quantum dot, reaching negative values at high [PC]/[QD] ratios. This is probably due to the decrease in the effect of energy migration on the total PC fluorescence upon its own significant absorption ability of a large number of acceptors. These effects are of interest to develop selection principles of components for hybrid complexes stabilized with electrostatic interaction.
Авторлар туралы
D. Gvozdev
Department of Biology
Хат алмасуға жауапты Автор.
Email: danil131054@mail.ru
Ресей, Moscow, 119234
E. Maksimov
Department of Biology
Email: danil131054@mail.ru
Ресей, Moscow, 119234
M. Strakhovskaya
Department of Biology; Federal Research and Clinical Center of Specialized Types of Health Care and Medical Technologies
Email: danil131054@mail.ru
Ресей, Moscow, 119234; Moscow, 115682
M. Ivanov
Department of Biology
Email: danil131054@mail.ru
Ресей, Moscow, 119234
V. Paschenko
Department of Biology
Email: danil131054@mail.ru
Ресей, Moscow, 119234
A. Rubin
Department of Biology
Email: danil131054@mail.ru
Ресей, Moscow, 119234
Қосымша файлдар
