Comparison of Spectral Characteristics of TiO2 @Ag and Ag@TiO2 Core-Shell Nanoparticles
2019 International Conference on Information and Telecommunication Technologies and Radio Electronics (UkrMiCo)(2019)
摘要
Comparison of spectral characteristics of TiO
2
@Ag and Ag@TiO
2
core-shell nanoparticles has been carried out. It is shown that in the case of TiO
2
@Ag the spectral position of the extinction peaks shifts to the long-wave spectrum region when the shell thickness changes and when the nanostructure is deformed (elongated). Ag@TiO
2
is characterized by appearance of the additional plasmonic peak. This main peak shifts to the short-wave spectrum region when the shell thickness increases and under deformation. Moreover, the additional peak is practically not sensitive to such changes. It should be noted that with a certain shell thickness such structure will have characteristics similar to silver nanoparticles.
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关键词
nanoshells,localized plasmon resonance,extinction
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