Abstract
The number change of absorption peaks of three-layered nanoshells have been investigated in theory with variation of the
composition. With an increase of the gold content in the inner core and outer shell, the number of absorption peaks
changed from three to two and from one to two, respectively. And the corresponding physical mechanism had been
discussed. The number tunability of peaks coming from the composition was affected by the geometrical parameters and
the dielectric constant. This composition dependent number change of peaks would provide insights to synthesis and
designing of three-layered nanoshells sensors for multi-molecular sensing..
Keywords
Au/Ag alloy, Quasistatic approximation, Three-layered nanoshells, Number tunability of absorption peaks.
Citation
GUOJUN WENG, JIANJUN LI, JUNWU ZHAO, Composition controlling the number of absorption peaks in three-layered metal-dielectric-metal nanoshell, Optoelectronics and Advanced Materials - Rapid Communications, 10, 3-4, March-April 2016, pp.185-190 (2016).
Submitted at: April 2, 2015
Accepted at: April 5, 2016