Electrical bistability in electrografted 5-(4-undecenyloxyphenyl)-10,15,20-triphenylporphyrin monolayer on Si

  • Koiry S
  • Aswal D
  • Chauhan A
 et al. 
  • 21


    Mendeley users who have this article in their library.
  • 13


    Citations of this article.


For futuristic hybrid nanoelectronics it is essential that functional organic molecules should be grafted to Si. For this purpose, we have synthesized a specifically designed organic molecule, that is, 5-(4-undecenyloxyphenyl)-10,15,20-triphenylporphyrin (TPP-C11), and these molecules were electrografted on highly doped n-Si substrates. TPP-C11 molecules exhibited a hysteresis in current-voltage (J-V) characteristics, with a sharp jump in current at a bias of ±0.6 V. We propose that the J-V hysteresis could be associated with the resonant tunneling through HOMO/LUMO of the porphyrin moiety. We also demonstrate that such electrical bistability can be utilized for the molecular memory effect. © 2008 Elsevier B.V. All rights reserved.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free