Coherent electron transport through an azobenzene molecule: a light-driven molecular switch.
We apply a first-principles computational approach to study a light-sensitive molecular switch. The molecule that comprises the switch can convert between a trans and a cis configuration upon photoexcitation. We find that the conductance of the two isomers varies dramatically, which suggests that this system has potential application as a molecular device. A detailed analysis of the band structure of the metal leads and the local density of states of the system reveals the mechanism of the switch.
Zhang
C
C
Department of Physics and Quantum Theory Project, University of Florida, Gainesville, Florida 32611, USA.
Du
M-H
MH
Cheng
H-P
HP
Zhang
X-G
XG
Roitberg
A E
AE
Krause
J L
JL