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O: Fachverband Oberflächenphysik

O 38: Semiconductor Substrates

O 38.9: Poster

Dienstag, 17. März 2015, 18:15–21:00, Poster A

Nanostructuring and Dye-Functionalization of Diamond Electrodes for Photoelectrochemical Applications — •Nina Felgen¹, Christo Petkov¹, Philipp Reintanz², Alberto Pasquarelli³, Thomas Hantschel⁴, Menelaos Tsigkourakos⁵, Ulrich Siemeling², Johann Peter Reithmaier¹, and Cyril Popov¹ — ¹Institute of Nanostructure Technologies and Analytics, Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Germany — ²Institute of Chemistry, Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Germany — ³Institute of Electron Devices and Circuits, University of Ulm, Germany — ⁴IMEC, Leuven, Belgium — ⁵Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Belgium

Diamond is a prospective electrode material for a number of applications providing efficient electron transport, high stability of electrolytic performance with time, a possibility for dye-sensitizing with photosensitive molecules, etc. Boron-doped diamond (BDD) films have been prepared by hot filament chemical vapor deposition (HFCVD) and structured by reactive ion etching with oxygen plasma applying a gold mask lithographically defined or composed of random droplets. Further, the nanostructured BDD surfaces were modified by O2 or NH3 plasma and grafted with different phthalocyanines. The modified and functionalized BDD were tested as electrodes for photoelectrochemical measurements.