Dresden 2017 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 44: Postersession II
DS 44.27: Poster
Donnerstag, 23. März 2017, 17:00–19:00, P1C
Combinatorial research on thin film Bi-W-Mo-O-N electrocatalysts for solar water splitting — •Mona Scherbeck1, Ramona Gutkowski2, Wolfgang Schuhmann2,3, and Alfred Schuhmann1,3 — 1Chair for MEMS Materials, Institute for Materials, Ruhr-Universität Bochum, Universitätsstraße 150, D-44780 Bochum, Germany — 2Analytical Chemistry-Center for Electrochemical Sciences (CES) — 3Materials Research Department, Ruhr-Universität Bochum, Universitätsstraße 150, D-44780 Bochum, Germany
The discovery of novel photoabsorbers for solar water splitting with improved properties e.g. photocorrosion resistance, high photocurrents and photovoltages is an important topic. In this contribution, results on Bi-W-Mo-O-N n-type photoelectrodes synthesized by combinatorial reactive magnetron co-sputtering are presented. The material libraries were deposited by varying the sputtering parameters e.g. reactive gas flow, sputtering pressure and temperature to identify dependencies of sputtering parameters on the properties of the thin film material libraries. To further characterize the properties of the material libraries the crystal structure, composition, optical properties, and photoelectrochemical performance were measured with high-throughput methods. The functional properties of these material libraries are correlated to their structure, composition, and processing in phase diagrams.