Light induced charging of polymer functionalized nanorods.
ZnO nanorods were functionalized with new block copolymers containing a hole transporting moiety in one block and a dye and an anchor system in the second block. After functionalization, the ZnO nanorods are well dispersible in organic media and the fluorescence of the dye is quenched. Kelvin probe force microscopy was used to measure changes in electrical potential between the ZnO nanorod and the polymeric corona. Upon light irradiation, potential changes on the order of some tens of millivolts were observed on individual structures. This effect is attributed to light-induced charge separation between the ZnO nanorod and its hole transporting polymeric corona.
Zorn
Matthias
M
Johannes-Gutenberg University, Institute for Organic Chemistry, Duesbergweg 10-14, 55099 Mainz, Germany.
Weber
Stefan A L
SA
Tahir
Muhammad Nawaz
MN
Tremel
Wolfgang
W
Butt
Hans-Jürgen
HJ
Berger
Rüdiger
R
Zentel
Rudolf
R