title: Light induced charging of polymer functionalized nanorods.
abstract: 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.
authors.affiliation: Johannes-Gutenberg University, Institute for Organic Chemistry, Duesbergweg 10-14, 55099 Mainz, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Zorn
authors.forename: Stefan A L
authors.initials: SA
authors.lastname: Weber
authors.forename: Muhammad Nawaz
authors.initials: MN
authors.lastname: Tahir
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Tremel
authors.forename: Hans-Jürgen
authors.initials: HJ
authors.lastname: Butt
authors.forename: Rüdiger
authors.initials: R
authors.lastname: Berger
authors.forename: Rudolf
authors.initials: R
authors.lastname: Zentel