Berlin 2005 – scientific programme
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CPP: Chemische Physik und Polymerphysik
CPP 30: POSTER: Chemical physics
CPP 30.47: Poster
Tuesday, March 8, 2005, 16:30–18:30, Poster TU D
Conductive Polymers in Nanotemplates — •Radim Křenek1, Alexander Sidorenko1, Věra Cimrová2, and Manfred Stamm1 — 1Leibniz Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany — 2Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
We report on synthesis of conductive polymers in block copolymer (BC) nanotemplates, polyaniline (PANI) and poly(3,4-ethylenedioxythiophene) (PEDOT). The nanotemplates are based on self-organization of poly(styrene-block-4-vinylpyridine) (PS-PVP) with low molecular additive (LMA). Thin porous nanotemplates were prepared by coating from solution of PS-PVP+LMA and selective washing of LMA from the film [1]. The cylindrical pores of 8 nm in the diameter are ordered in a hexagonal lattice (24 nm in the period) as determined from AFM in tapping mode. PANI and PEDOT were synthesized in the porous nanotemplates electrochemically. Presence of the polymers in the nanopores was proven using uv-vis spectrophotometry, atomic force microscopy (AFM) and ellipsometry. Electrical properties of the devices (glass/ITO/PANI/Al and glass/ITO/BC+PANI/Al) were studied. Current-voltage characteristics of the devices are compared and discussed.
[1] A. Sidorenko, I. Tokarev, S. Minko, M. Stamm: J. Am. Chem. Soc. 125 (2003) 12211