Modifying the Semiconductor/Electrolyte Interface in CuO p-Type Dye-Sensitized Solar Cells: Optimization of Iodide/Triiodide-Based Electrolytes

Langmar O, Ganivet CR, Scharl T, De La Torre G, Torres T, Costa RD, Guldi DM (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Book Volume: 1

Pages Range: 6388-6400

Journal Issue: 11

DOI: 10.1021/acsaem.8b01370

Abstract

Studies related to novel electrolyte concepts for p-type dye-sensitized solar cells (p-DSSCs) set focus on developing alternatives to the iodide/triiodide (I-/I-3(-)) redox couples, while attempts to improve the performance of the latter are scarce. In this study, we report on the first complete optimization of an I-/I-3(-)-based electrolyte for p-DSSCs employing CuO-based photocathodes. Optimization of the electrolyte solvent, the effect of ionic liquids, and the concentration-dependent properties of various electrolyte additives were at the focal point. Electrochemical impedance spectroscopy and intensity-modulated photovoltage and photocurrent spectroscopies complemented basic electrochemical and device characterization, leading to a sound understanding of charge injection, charge recombination, and charge transport. To this end, optimization of the aforementioned parameters enabled 2-fold device efficiencies of 0.156% compared to 0.078% for nonoptimized devices.

Authors with CRIS profile

Additional Organisation(s)

Involved external institutions

Universidad Autónoma de Madrid (UAM) Spain (ES)

How to cite

APA:

Langmar, O., Ganivet, C.R., Scharl, T., De La Torre, G., Torres, T., Costa, R.D., & Guldi, D.M. (2018). Modifying the Semiconductor/Electrolyte Interface in CuO p-Type Dye-Sensitized Solar Cells: Optimization of Iodide/Triiodide-Based Electrolytes. ACS Applied Energy Materials, 1(11), 6388-6400. https://dx.doi.org/10.1021/acsaem.8b01370

MLA:

Langmar, Oliver, et al. "Modifying the Semiconductor/Electrolyte Interface in CuO p-Type Dye-Sensitized Solar Cells: Optimization of Iodide/Triiodide-Based Electrolytes." ACS Applied Energy Materials 1.11 (2018): 6388-6400.

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