Abstract
In this paper, Au nanoshell arrays, serving as a photo-activated material, are fabricated via the combination of self-assembled nanosphere lithography and the thermal decomposing polymer method. The intensity and position of surface plasmonic resonance can be tuned from the visible region to the near-infrared region by changing the size of Au nanoshell arrays. When resonance absorption peaks of metal nanoparticles are matched with emission wavelengths of core-shell CdSe/CdS quantum dots, fluorescent intensity of CdSe/CdS quantum dots can be strongly enhanced. The physical mechanism of fluorescent enhancement is explained.
Highlights
Quantum dots (QDs), as a low-cost and multifunctional material, have excellent optoelectronic properties, such as narrow emission band width and tunable emission in the full visible spectral range
Au NS arrays prepared by monolayer and multilayer polystyrene spheres (PS) sphere arrays and CdSe/CdS QDs coated on Au NS arrays, with the NS diameters of 500, 750, and 1000 nm, do not bring about more energy to CdSe/CdS QDs
We demonstrate luminescence enhancement of CdSe/CdS QDs film assisted by surface plasmon resonance on Au NS arrays
Summary
Quantum dots (QDs), as a low-cost and multifunctional material, have excellent optoelectronic properties, such as narrow emission band width and tunable emission in the full visible spectral range. Luminous properties of core-shell CdSe/CdS QDs film based on metal nanostructure arrays focused on improving the luminous efficiency of QDs film based on metal nanostructure arrays [12–. Luminous properties of core-shell CdSe/CdS QDs film based on metal nanostructure. Au nanoshell (NS) arrays are used to enhance fluorescence properties of core-shell arrays combined with thermal decomposition by electron beam deposition. QDs film based on arrays be modulated from the visible to near infrared region by adjusting the size of Au NS arrays. Addition, fluorescence enhancement mechanisms of core-shell CdSe/CdS QDs film based on Au NS arrays are further explained
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