Exciton transfer of azobenzene derivatives in self-assembled monolayers

Enrico Benassi, Stefano Corni

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Diphenyl-diazene and its derivative bis[(1,1′)-biphenyl-4-yl]diazene were found to have innovative technological applications when arranged in self-assembled monolayers (SAMs). This is due to their switching capability after photoisomerization that is preserved also when they are in a close-packed assembly over the metal surface forming SAMs. One of the possible phenomena that may hinder the photoisomerization process is the intermolecular excitonic transfer. Understanding this possibility is therefore of the utmost importance. For doing so, we tackled a quantum mechanical (QM) study that begins from the exploration of the electronic excited state properties of a single molecule, to the intermolecular exciton couplings computed at different theory levels, until the excitonic diffusion dynamics, evaluated both within a frozen SAM portion and as an average along a molecular dynamics (MD) simulation.

Original languageEnglish
Pages (from-to)25026-25041
Number of pages16
JournalJournal of Physical Chemistry C
Issue number47
Publication statusPublished - 27 Nov 2013
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

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