Bias-dependent visualization of electron donor (D) and electron acceptor (A) moieties in a chiral DAD triad molecule.
The 2D crystal lattice structure and bias-dependent contrast of a chiral electron donor-acceptor-donor triad system, composed of two oligo(p-phenylene vinylene) electron donors and a perylenediimide electron acceptor (OPV4-PDI-OPV4), have been studied by means of scanning tunneling microscopy (STM) at the liquid-graphite interface. OPV4-PDI-OPV4 is ordered in rows and forms a well-ordered 2D crystal lattice structure. The electrical properties of the donor and acceptor parts are distinguished by the contrast in bias-dependent STM imaging.
Miura
Atsushi
A
Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200 F, B-3001 Leuven, Belgium.
Chen
Zhijian
Z
Uji-I
Hiroshi
H
De Feyter
Steven
S
Zdanowska
Magdalena
M
Jonkheijm
Pascal
P
Schenning
Albertus P H J
AP
Meijer
E W
EW
Würthner
Frank
F
De Schryver
Frans C
FC