Premium
Inside Cover: Light‐Powered Electrical Switch Based on Cargo‐Lifting Azobenzene Monolayers (Angew. Chem. Int. Ed. 18/2008)
Author(s) -
Ferri Violetta,
Elbing Mark,
Pace Giuseppina,
Dickey Michael D.,
Zharnikov Michael,
Samorì Paolo,
Mayor Marcel,
Rampi Maria Anita
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200890080
Subject(s) - azobenzene , photoswitch , monolayer , electrode , materials science , self assembled monolayer , drop (telecommunication) , rod , irradiation , nanotechnology , optoelectronics , chemistry , photochemistry , composite material , polymer , electrical engineering , physics , medicine , alternative medicine , engineering , pathology , nuclear physics
A molecular cargo lifter based on tightly packed monolayers (SAMs) of rigid azobenzene rods is described by M. A. Rampi et al. in their Communication on page 3407 ff. The monolayer, sandwiched between Hg and Au electrodes, is irradiated in situ through a transparent gold surface. The current flowing through the electrodes increases and decreases reversibly under alternating irradiation at 370 and 450 nm. The azobenzene SAM exerts a mechanical force and lifts the Hg drop electrode, and thus the system operates as a photoswitch.