CrossRef enabled

PAC Archives

Archive →

Pure Appl. Chem., 2001, Vol. 73, No. 3, pp. 535-542

Molecular and biomolecular optoelectronics

Itamar Willner* and Bilha Willner

Institute of Chemistry, The Farkas Center for Light-Induced Processes, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel

Abstract: Reversible electronic transduction of photonic processes occurring on electrodes is the conceptual method to develop molecular and biomolecular optoelectronic systems. Cyclic photochemical activation of molecular or biomolecular monolayer redox-functions provides a general methodology for the amperometric transduction of photonic information that is recorded by the chemical assembly. Alternatively, photoisomerizable monolayers associated with electrodes act as "command interfaces" for controlling the interfacial electron transfer between molecular redox-species or redox-proteins. The systems use a photonic input for the generation of an electronic output and act as information processing assemblies. Programmed arrays of photosensitizer/electron acceptor cross-linked Au-nanoparticle arrays are assembled on indium tin oxide (ITO) for photoelectrochemical applications.