Luminescence of CdSe quantum dots near a layer of silver nanoparticles ion-synthesized in sapphire

被引：0
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作者：
Yu. G. Galyametdinov
R. R. Shamilov
V. I. Nuzhdin
V. F. Valeev
A. L. Stepanov
机构：
[1] Kazan National Research Technological University,Kazan E.K. Zavoisky Physical Technical Institute, Kazan Scientific Center
[2] Russian Academy of Sciences,undefined
[3] Kazan Federal University,undefined
来源：
Technical Physics Letters | 2016年 / 42卷
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摘要：
We study the characteristics of the luminescence of composite films based on polymethyl methacrylate with CdSe quantum dots deposited from solution onto the surface of a sapphire substrate containing a preliminarily formed layer with ion-synthesized silver nanoparticles. The sapphire layer with silver nanoparticles exhibits selective plasmon absorption in the visible spectral range with a peak at 463 nm. Enhancement in the exciton luminescence intensity of quantum dots with a peak at 590 nm is observed upon excitation at wavelengths lying in the region of plasmon resonance of metal nanoparticles, as well as luminescence quenching for quantum dots located in the vicinity of silver nanoparticles.
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页码：1067 / 1070
页数：3
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