Improving charge injection and charge transport in CuO-based p-type DSSCs-a quick and simple precipitation method for small CuO nanoparticles
Entity
UAM. Departamento de Química Orgánica; Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia); Instituto Madrileño de Estudios Avanzados en Materiales (IMDEA-Materiales)Publisher
The Royal Society of ChemistryDate
2018-04-23Citation
10.1039/c8tc00769a
Journal of Materials Chemistry C 6.19 (2018): 5176-5180
ISSN
2050-7534DOI
10.1039/c8tc00769aFunded by
The authors thank the German Science Council (DFG) for the financial support in the framework of the Cluster of Engineering of Advanced Materials (EAM). O.Langmar thanks S. Romeis for the BET measurementsEditor's Version
http://doi.org/10.1039/c8tc00769aSubjects
Co-precipitation; CuO; Nanoparticles; P-type DSSCs; Charge transport; Charge injection; QuímicaRights
© 2018 The Royal Society of ChemistryAbstract
Herein, we introduce a co-precipitation synthesis of CuO, which produces small and uniform nanoparticles (∼12 nm) with a specific surface area of 97.3 m2g-1. The resulting CuO nanoparticles are superior to the commercial ones, which have previously been used to prepare p-type DSSCs. In turn, we compared p-type DSSCs consisting of CuO-based photocathodes based on newly synthesized and commercial nanoparticles. Devices based on new CuO nanoparticles enable higher dye loadings, and, in turn, superior short-circuit current densities and efficiencies. To corroborate our findings, electrochemical impedance spectroscopy and intensity modulated photocurrent spectroscopy assays were conducted, revealing a better charge injection and faster charge transport for those photocathodes featuring the new CuO nanoparticles
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Google Scholar:Langmar, Oliver
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Ganivet, Carolina R.
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Schol, Peter
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Scharl, Tobias
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Torre, Gema de la
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Torres Cebada, Tomás
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Costa, Rubén D.
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Guldi, Dirk M.
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