Hybrid Dye-Titania Nanoparticles for Superior Low-Temperature Dye-Sensitized Solar Cells

Kunzmann A, Valero S, Sepulveda AE, Rico-Santacruz M, Lalinde E, Berenguer JR, Garcia-Martinez J, Guldi DM, Serrano E, Costa Riquelme RD (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Advanced Energy Materials Wiley

Book Volume: 8

Article Number: 1702583

Journal Issue: 12

DOI: 10.1002/aenm.201702583

Abstract

In this work, a new strategy to design low-temperature (≤200 °C) sintered dye-sensitized solar cells (lt-DSSC) is reported to enhance charge collection efficiencies (ηcoll), photoconversion efficiencies (η), and stabilities under continuous operation conditions. Realization of lt-DSSC is enabled by the integration of hybrid nanoparticles based on TiO2-Ru(II) complex (TiO2_Ru_IS)—obtained by in situ bottom-up construction of Ru(II) N3 dye-sensitized titania—into the photoelectrode. Incentives for the use of TiO2_Ru_IS are i) dye stability due to its integration into the TiO2 anatase network and ii) enhanced charge collection yield due to its significant resistance toward electron recombination with electrolytes. It is demonstrated that devices with single-layer photoelectrodes featuring blends of P25 and TiO2_Ru_IS give rise to a 60% ηcoll relative to a 46% ηcoll for devices with P25-based photoelectrodes. Responsible for this trend is a better charge transport and a reduced electron recombination. When using a multilayered photoelectrode architecture with a top layer based only on TiO2_Ru_IS, devices with an even higher ηcoll (74%) featuring a η of around 8.75% and stabilities of 600 h are achieved. This represents the highest values reported for lt-DSSC to date.

Authors with CRIS profile

Andreas Kunzmann Lehrstuhl für Physikalische Chemie I Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I Rubén Dario Costa Riquelme Lehrstuhl für Physikalische Chemie I

Involved external institutions

Universidad de La Rioja ES Spain (ES) University of Alicante / Universidad de Alicante / Universitat d'Alacant ES Spain (ES)

How to cite

APA:

Kunzmann, A., Valero, S., Sepulveda, A.E., Rico-Santacruz, M., Lalinde, E., Berenguer, J.R.,... Costa Riquelme, R.D. (2018). Hybrid Dye-Titania Nanoparticles for Superior Low-Temperature Dye-Sensitized Solar Cells. Advanced Energy Materials, 8(12). https://doi.org/10.1002/aenm.201702583

MLA:

Kunzmann, Andreas, et al. "Hybrid Dye-Titania Nanoparticles for Superior Low-Temperature Dye-Sensitized Solar Cells." Advanced Energy Materials 8.12 (2018).

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