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Light intensity influence on strontium Titanate based photo-electrochemical cells

Hertkorn, Daniel; Megnin, Christof; Müller, Claas; Hanemann, Thomas 1; Reinecke, Holger
1 Karlsruher Institut für Technologie (KIT)


The influence of light intensity on photo-electrochemical cells (PECs) consisting of an n-type strontium titanate (SrTiO₃)
photoanode and nickel cathode in potassium hydroxide electrolyte is studied. The band levels of an electrolyte metalsemiconductor-electrolyte system are presented and the effect of different light intensities on the energy levels is investigated. Photocurrent density, quantum efficiency, and open circuit potential measurements are performed on the processed PECs under different light intensities (375 nm). It is demonstrated that a threshold value of the light intensity has to be reached in order to obtain positive photo activity and that beyond this value the performance remains nearly constant.

Volltext §
DOI: 10.5445/IR/1000070852
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2017
Sprache Englisch
Identifikator ISSN: 0862-5468
KITopen-ID: 1000070852
HGF-Programm 43.22.03 (POF III, LK 01) Printed Materials and Systems
Erschienen in Ceramics silikáty
Verlag University of Chemistry and Technology, Prague
Band 61
Heft 3
Seiten 179-182
Schlagwörter Photo-electrochemical cells, SrTiO3, Light intensity, Quantum efficiency
Nachgewiesen in Web of Science
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