Percorsi digitali : storia

Strumento didattico rivolto a studenti e docenti della scuola secondaria di primo grado. Si compone di 31 percorsi monografici strutturati (con ricche gallerie di immagini per la personalizzazione della lezione), dal raccordo con la scuola primaria ai conflitti del '900. Le presentazioni propongono spunti e stimoli per l'apprendimento e l'insegnamento della storia a partire dall'utilizzo della lavagna interattiva multimediale (LIM)

Galvanic replacement reaction as a route to prepare nanoporous aluminum for UV plasmonics

13siThere 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.openopenGaroli D.; Schirato A.; Giovannini G.; Cattarin S.; Ponzellini P.; Calandrini E.; Zaccaria R.P.; D'amico F.; Pachetti M.; Yang W.; Jin H.-J.; Krahne R.; Alabastri A.Garoli, D.; Schirato, A.; Giovannini, G.; Cattarin, S.; Ponzellini, P.; Calandrini, E.; Zaccaria, R. P.; D'Amico, F.; Pachetti, M.; Yang, W.; Jin, H. -J.; Krahne, R.; Alabastri, A

Galvanic replacement reaction as a route to prepare nanoporous aluminum for UV plasmonics

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