Photoinduced changes in SPIONs/CdSe/ZnS nanocomposites optical properties

被引：0
|
作者：
Reznik, Ivan A. [1 ]
Matiushkina, Anna [1 ]
Dubavik, Aliaksei [1 ]
Orlova, Anna O. [1 ]
机构：
[1] ITMO Univ, Kronverkskiy Pr 49, St Petersburg 197101, Russia
来源：
NANOPHOTONICS VIII | 2021年 / 11345卷
关键词：
SPIONs; quantum sized CdSe shell; magneto-luminescent nanocomposites; photoluminescence quantum yield; photoinduced processes in quantum semiconductor nanocrystals; IRON-OXIDE NANOPARTICLES; QUANTUM DOTS; MAGNETIC NANOPARTICLES; LUMINESCENCE; PROSPECTS;
D O I：
10.1117/12.2556898
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The impact of prolonged irradiation of SPIONs/CdSe/ZnS nanocomposites by visible light on nanocomposite luminescence has been studied. It has been shown that prolonged irradiation of the nanocomposites with 405 nm laser can triple their photoluminescence quantum yield. It has been demonstrated that the efficiency of photoinduced processes on the nanocomposite surface correlates very well with the concentration of the nanocomposite surface ligand in our samples. We have also found that the quantum sized CdSe shell of SPIONs/CdSe/ZnS nanocomposites demonstrates the QD-like dependence of photoluminescence quantum yield on visible light dose and this nanocomposite property can be efficiently used to brighten their photoluminescence.
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页数：7
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