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

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Langmar O, Ganivet CR, Scharl T, De La Torre G, Torres T, Costa RD, Guldi DM
Zeitschrift: ACS Applied Energy Materials
Jahr der Veröffentlichung: 2018
Band: 1
Heftnummer: 11
Seitenbereich: 6388-6400
ISSN: 2574-0962


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.


FAU-Autoren / FAU-Herausgeber

Guldi, Dirk Michael Prof. Dr.
Lehrstuhl für Physikalische Chemie I
Langmar, Oliver
Sonderforschungsbereich 953/2 Synthetische Kohlenstoffallotrope
Scharl, Tobias
Lehrstuhl für Physikalische Chemie I


Zusätzliche Organisationseinheit(en)
Interdisziplinäres Zentrum für Molekulare Materialien


Autor(en) der externen Einrichtung(en)
Universidad Autónoma de Madrid (UAM)


Zitierweisen

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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Zuletzt aktualisiert 2019-06-03 um 12:08