Dresden 2020 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 49: Poster Session II
CPP 49.53: Poster
Tuesday, March 17, 2020, 14:00–16:00, P1A
Charge Transfer at the Interface of Dye-sensitized Solar Cells with MgxZnO1-x — •Nico Hofeditz1, Andreas Ringleb2, Derck Schlettwein2, and Wolfram Heimbrodt1 — 1Department of Physics and Material Sciences Center, Philipps-University Marburg, Renthof 5, 35032 Marburg, Germany — 2Institute of Applied Physics, Justus-Liebig-University Gießen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
Dye-sensitized solar cells containing the indoline dye D149 have been prepared with an iodide/triiodide electrolyte. The mesoporous photoanode has been prepared from ZnO with different concentrations of Mg. Hereby the effect of Mg-doping on cell performance can be studied.
An important process in high efficient dye-sensitized solar cells is an optimized electron transfer, i.e., the electron injection yield from the dye into the conduction band of the (Mgx)ZnO1-x at the organic-inorganic interface.
The desired effect of the Mg-doping is an increased open-circuit voltage of the cell through a change in the energy level alignment of the anode. Since this has an effect on the charge injection characteristicts, we use time-resolved photoluminescence spectroscopy to study this process in detail.