An Electrochemical, resonant Photoemission and Ambient Pressure-X-ray Photoelectron Spectroscopic Investigation of Si/TiO2/Ni/Electrolyte Interfaces

  • Photoelectrochemical cells based on semiconductor-liquid interfaces provide a method of converting solar energy to electricity or fuels. Recently, we have demonstrated operational systems that involved stabilized semiconductor-liquid junctions [1]. The electrical and spectroscopic properties of the TiO2/Ni protection layer system have been investigated in contact with electrolyte solutions [2, 3, 4]. From the response of the photoelectron binding energies to variations in applied potential the energetics of the solid/electrolyte interface are elucidated. The degree of conductivity depended on the chemical state of the Ni on the TiO2 surface. The combinations of these techniques provide a powerful tool for the investigation of hybrid electrode/solution contacts. [1] Science 344 (2014) 1005; [2] Sci Rep 5 (2015) 9788; [3] Ener & Env Sci 8 (2015) 2409; [4] J Electrochem Soc 162 (2016) H1

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Author: Matthias RichterGND, Michael F. Lichterman, Shu Hu, Ethan J. CrumlinORCiD, Stephanus Axnanda, Marco Favaro, Walter S. DrisdellORCiD, Zahid Hussain, Bruce S. BrunschwigORCiD, Zhi Liu, Nathan S. LewisORCiD, Hans-Joachim Lewerenz
URL:http://www.dpg-verhandlungen.de/year/2016/conference/regensburg/part/o/session/82/contribution/2?lang=en
Title of the source (German):Verhandlungen der Deutschen Physikalischen Gesellschaft
Publisher:Deutsche Physikalische Gesellschaft
Place of publication:Bad Honnef
Document Type:Conference Proceeding
Language:English
Year of publication:2016
Tag:ambient pressure spectroscopy; resonant photoelectron spectroscopy; water splitting
First Page:S. 414
Series ; volume number:Verhandlungen der Deutschen Physikalischen Gesellschaft ; Reihe 6, Band 51
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Angewandte Physik und Halbleiterspektroskopie
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