The Influence of Electrolyte Composition on the Charge Transfer Dynamics in Dye-Sensitized Water Splitting Systems
Iwona Grądzka-Kurzaj a, Mateusz Gierszewski a, Gotard Burdziński a, Marcin Ziółek a
a Adam Mickiewicz University Poznań, Poland, Uniwersytetu Poznańskiego 2, Poznań, Poland
International Conference on Hybrid and Organic Photovoltaics
Proceedings of Online International Conference on Hybrid and Organic Photovoltaics (OnlineHOPV20)
Online, Spain, 2020 May 26th - 29th
Organizers: Tracey Clarke, James Durrant, Annamaria Petrozza and Trystan Watson
Poster, Iwona Grądzka-Kurzaj, 099
Publication date: 22nd May 2020
ePoster: 

The photoanodes consisting of TiO2 sensitized with the standard ruthenium compounds (RuP - absorber, RuOEC – catalyst) have been intensively examined to incorporate them into the water-splitting systems driven by solar radiation [1,2]. We show a clear dependency of the TiO2 conduction band position on the dye-TiO2 electron transfer rate. The former is related to the specific adsorption of different electrolyte ions onto the sensitized electrode since no direct-pH effect was found. Moreover, we have observed a fast component of electron transfer from the catalyst to the oxidized dye below 100 ps. 

 

Funding: NCN (National Science Centre, Poland) under project 2015/18/E/ST4/00196

  

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