Oligothiophene self-assembly on the surface of ZnO nanorods: toward coaxial p-n hybrid heterojunctions.
We describe herein the design, synthesis and detailed structural characterization of hybrid 1D nanostructures. They are prepared by supramolecular self-assembly of oligothiophene molecules on the surface of zinc oxide nanorods in solution at room temperature. Electronic absorption spectroscopy and X-ray diffraction show that both organic and inorganic components in the coaxial p-n heterojunctions are crystalline. Especially, it is demonstrated that the organic compounds form a self-assembled monolayer at the surface of the nanorods, which is not the case when zinc oxide quantum dots are instead used. As a result of their hybrid nature, the 1D nanostructures lead to ambipolar semiconducting nanostructured materials as active layers in field-effect transistors.
Martini
Cyril
C
Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), UPR 3118, CNRS, Aix-Marseille Université, Campus de Luminy, Case 913, 13288 Marseille Cedex 09, France.
Poize
Guillaume
G
Ferry
Daniel
D
Kanehira
Daiki
D
Yoshimoto
Noriyuki
N
Ackermann
Jörg
J
Fages
Frédéric
F