The I–V behavior of self-assembled monolayers of a 1,3-alternate bis(dipyridyl)calix[4]arene derivative and its Cu2+ complex have been studied by conducting-atomic force microscopy; theoretical calculations have been carried out to simulate I–V curves. The experimental data show that the two systems have different conductive properties, the Cu2+ complex monolayer having a lower resistance. Theoretical calculations demonstrate that the difference between the two simulated systems results from the different position of their Fermi level. Such a different response to charge transfer may be of interest for the fabrication of molecular electronics devices based on calixarenes.
Electron transport properties of calix[4]arene based systems in a metal-molecule-metal junction
ARENA, Giuseppe;FORTE, GIUSEPPE;LOMBARDO, Giuseppe Marcello;SGARLATA, CARMELO;SPOTO, Giuseppe
2007-01-01
Abstract
The I–V behavior of self-assembled monolayers of a 1,3-alternate bis(dipyridyl)calix[4]arene derivative and its Cu2+ complex have been studied by conducting-atomic force microscopy; theoretical calculations have been carried out to simulate I–V curves. The experimental data show that the two systems have different conductive properties, the Cu2+ complex monolayer having a lower resistance. Theoretical calculations demonstrate that the difference between the two simulated systems results from the different position of their Fermi level. Such a different response to charge transfer may be of interest for the fabrication of molecular electronics devices based on calixarenes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
