Optimizing CuO p-type dye-sensitized solar cells by using a comprehensive electrochemical impedance spectroscopic study

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Langmar O, Ganivet CR, De La Torre G, Torres T, Costa RD, Guldi DM
Zeitschrift: Nanoscale
Jahr der Veröffentlichung: 2016
Band: 8
Heftnummer: 41
Seitenbereich: 17963-17975
ISSN: 2040-3364
eISSN: 2040-3372


Abstract

We introduce a novel and comprehensive approach for the evaluation and interpretation of electrochemical impedance spectroscopy (EIS) measurements in p-type DSSCs. In detail, we correlate both the device performance and EIS figures-of-merit of a series of devices in which, the calcination temperature, film thickness, and electrolyte concentration have been systematically modified. This new approach enables the separation of the different processes across the dye/semiconductor/electrolyte interface, namely the unfavorable charge recombination and the favorable electron injection/regeneration processes. In addition, studies on non-sensitized CuO and NiO electrodes provide insights into their affinity towards a reaction with the electrolyte - CuO is far less reactive towards the polyiodide species. Overall, this work underlines the superior features of CuO with respect to NiO for p-DSSCs and demonstrates a comprehensive optimization of the CuO-based DSSCs with respect to the device architecture by the aid of EIS analysis.


FAU-Autoren / FAU-Herausgeber

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


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials
Interdisziplinäres Zentrum für Molekulare Materialien


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


Zitierweisen

APA:
Langmar, O., Ganivet, C.R., De La Torre, G., Torres, T., Costa, R.D., & Guldi, D.M. (2016). Optimizing CuO p-type dye-sensitized solar cells by using a comprehensive electrochemical impedance spectroscopic study. Nanoscale, 8(41), 17963-17975. https://dx.doi.org/10.1039/C6NR05507A

MLA:
Langmar, Oliver, et al. "Optimizing CuO p-type dye-sensitized solar cells by using a comprehensive electrochemical impedance spectroscopic study." Nanoscale 8.41 (2016): 17963-17975.

BibTeX: 

Zuletzt aktualisiert 2019-18-03 um 12:08