Jump to main content
Jump to site search

AuAg@CdS double-walled nanotubes: Synthesis and nonlinear absorption properties


Novel AuAg@CdS double-walled nanotubes (DWNTs) were successfully fabricated through a three-steps solvothermal method, starting with silver nanowires as the template. In the DWNTs, a uniform layer of CdS shell is coated onto the AuAg nanotubes, finally forming the one-dimensional nanocomposites. Nonlinear optical analysis indicated that the plasmon-exciton interaction in the AuAg@CdS DWNTs induced an obviously saturated absorption response under visible light excitation, in contrast with individual AuAg nanotube and CdS shell. Furthermore, the effective nonlinear absorption coefficient of the AuAg@CdS DWNTs was 7 times larger than that of CdS shell, which was attributed to the local field enhancement effect. Such unique morphological configuration and optical properties enable the AuAg@CdS DWNTs an ideal candidate for next generation nano-photonic devices served as mode-locking element, optical switch, and so on.

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 Apr 2017, accepted on 15 Jun 2017 and first published on 16 Jun 2017

Article type: Paper
DOI: 10.1039/C7NR02861J
Citation: Nanoscale, 2017, Accepted Manuscript
  •   Request permissions

    AuAg@CdS double-walled nanotubes: Synthesis and nonlinear absorption properties

    S. Guan, X. Fu, Y. Tang and Z. Peng, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR02861J

Search articles by author