Login / Signup

Galvanic Replacement Reaction as a Route to Prepare Nanoporous Aluminum for UV Plasmonics.

Denis GaroliAndrea SchiratoGiorgia GiovanniniSandro CattarinPaolo PonzelliniEugenio CalandriniRemo Proietti ZaccariaFrancesco D'AmicoMaria PachettiWei YangHai-Jun JinRoman KrahneAlessandro Alabastri
Published in: Nanomaterials (Basel, Switzerland) (2020)
There is a growing interest in extending plasmonics applications into the ultraviolet region of the electromagnetic spectrum. Noble metals are commonly used in plasmonic, but their intrinsic optical properties limit their use above 350 nm. Aluminum is probably the most suitable material for UV plasmonics, and in this work we fabricated substrates of nanoporous aluminum starting from an alloy of Al2Mg3. The porous metal is obtained by means of a galvanic replacement reaction. Such nanoporous metal can be exploited to achieve a plasmonic material suitable for enhanced UV Raman spectroscopy and fluorescence. Thanks to the large surface to volume ratio, this material represents a powerful platform for promoting interaction between plasmonic substrates and molecules in the UV.
Keyphrases
  • single molecule
  • raman spectroscopy
  • energy transfer
  • metal organic framework
  • aqueous solution
  • photodynamic therapy
  • high throughput
  • drinking water