Plasmon enhanced light absorption in aluminium@ Hematite core shell hybrid nanocylinders: the critical role of length ?

EDUARDO A. CORONADO

RSC Advances

Royal Society of Chemistry

Año: 2017 vol. 7 p. 2857 - 2857

2046-2069

he light absorption as well as the near field enhancements properties of Al@α-Fe2O3 core shell hybrid nanocylinders (HNs) have been systematically studied by means of Discrete Dipole Approximation simulations. The Al@α-Fe2O3 HNs consist of a right circular cylinder Al core, wrapped by a circular section of an α-Fe2O3 shell, both having the same finite length L. A general and useful methodology has been implemented to assess separately the partial contributions to the absorption spectrum of each component of the Al@α-Fe2O3 HN. The employed methodology can be applied not only to those HNs studied here but also to any other nanostructure with arbitrary geometry and several components providing relevant information not accessible through standard spectroscopic techniques. The absorption spectra have been employed to calculate the absorbed photon flux ϕ within the α-Fe2O3 shell. According to the HN size, plasmon enhanced light absorption in the α-Fe2O3 sh