Numerical investigation of surface plasmon resonance effects on photocatalytic activities using silver nanobeads photodeposited onto a titanium dioxide layer

We numerically investigated the surface plasmon resonance effects on photocatalytic activities using silver nanobeads photodeposited onto a titanium dioxide (TiO2) layer by three-dimensional finite element method. Results show that the proposed case C structure exhibits significantly high photocatal...

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Bibliographic Details
Published in:Optics communications 2014-11, Vol.331, p.223-228
Main Authors: Chau, Yuan-Fong, Hu, Chih-Chan, Jheng, Ci-Yao, Tsai, Yao-Tsung, Hsieh, Li-Zen, Yang, Wayne, Chiang, Chien-Ying, Sun, Yuh-Sien, Lee, Cheng-Min
Format: Article
Language:English
Subjects:
Finite element method
Peak resonance wavelength
Plasmonic photocatalytic reactor
Titanium dioxide (TiO2)
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Summary:We numerically investigated the surface plasmon resonance effects on photocatalytic activities using silver nanobeads photodeposited onto a titanium dioxide (TiO2) layer by three-dimensional finite element method. Results show that the proposed case C structure exhibits significantly high photocatalytic activity in a wide range of incident angle of light and broad wavelength range in near-UV, visible and near-infrared. The enhanced electric field region, intensity and peak resonance wavelength could be increased by enhancing the inner medium dielectric constant (ε) in silver nanobeads with ε in the range 1.7689–11.56 and the incident angle of light θ in the range 30°–75°.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2014.06.018