Dresden 2006 – wissenschaftliches Programm
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CPP: Chemische Physik und Polymerphysik
CPP 25: POSTER Electronic Structure and Spectroscopy
CPP 25.2: Poster
Donnerstag, 30. März 2006, 17:00–19:00, P2
Electronic Properties of Metals Embedded into Porous Polymeric Nanotemplates — •Radim Krenek1, Vera Cimrova2, Olaf Seifarth3, Vera Bocharova1, Ganna Gorodyska1, Alexander Sidorenko4, Dieter Schmeisser3, and Manfred Stamm1 — 1Leibniz-Institut für Polymerforschung e.V., Dresden, Germany — 2Institute of Macromolecular Chemistry, Academy of Sciences of Czech Rep., Prague, Czech Rep. — 3Brandenburgische Technische Universität, Cottbus, Germany — 4Bell Labs, Lucent Technologies, Murray Hill, USA
We report on electrical measurements (current-voltage characteristics (CVC)) of metals which are templated via porous polymeric nanotemplates. The nanotemplates are based on self-organization of poly(styrene-block-4-vinylpyridine) (PS-PVP). The cylindrical pores of 8 nm in the diameter are ordered in a hexagonal lattice (24 nm in the period). Chromium and gold were embedded in the nanotemplates by magnetron sputtering, nickel was electrodeposited. These thin films were characterized by AFM, ellipsometry, x-ray reflectivity, XAS, XPS and NEXAFS.
CVC were acquired by a connection common for light emitting diodes discussing a further use of nanotemplated metals in these devices. To make the connection, the nanotemplate was deposited on glass with ITO electrodes, then metal was embedded into it and finally Al electrodes were evaporated on the device. Behaviour of space charge limited currents (SCLC) was observed. Also, we deal with the electrical mode of AFM as well. Finally electronic behaviour of the metallic nanorods embedded in polymeric nanotemplates is discussed in respective to the structure and chemical composition obtained by AFM and x-ray techniques.