Scalable Triple Cation Mixed Halide Perovskite-BiVO4 Tandems for Bias-Free Water Splitting

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Ressource 1Télécharger: Cam-Tandem-2018-AEnM.pdf (1650.17 [Ko])
Etat: Public
Version: Author's accepted manuscript
ID Serval
serval:BIB_A4AB6DFBC0FB
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Scalable Triple Cation Mixed Halide Perovskite-BiVO4 Tandems for Bias-Free Water Splitting
Périodique
Advanced Energy Materials
Auteur⸱e⸱s
Andrei Virgil, Hoye Robert L. Z., Crespo-Quesada Micaela, Bajada Mark, Ahmad Shahab, De Volder Michael, Friend Richard, Reisner Erwin
ISSN
1614-6832
Statut éditorial
Publié
Date de publication
01/07/2018
Peer-reviewed
Oui
Pages
1801403
Langue
anglais
Résumé
Strong interest exists in the development of organic–inorganic lead halide perovskite photovoltaics and of photoelectrochemical (PEC) tandem absorber systems for solar fuel production. However, their scalability and durability have long been limiting factors. In this work, it is revealed how both fields can be seamlessly merged together, to obtain scalable, bias-free solar water splitting tandem devices. For this purpose, state-of-the-art cesium formamidinium methylammonium (CsFAMA) triple cation mixed halide perovskite photovoltaic cells with a nickel oxide (NiOx) hole transport layer are employed to produce Field’s metal-epoxy encap-sulated photocathodes. Their stability (up to 7 h), photocurrent density (–12.1 ± 0.3 mA cm−2 at 0 V versus reversible hydrogen electrode, RHE), and reproducibility enable a matching combination with robust BiVO4 photoanodes, resulting in 0.25 cm2 PEC tandems with an excellent stability of up to 20 h and a bias-free solar-to-hydrogen efficiency of 0.35 ± 0.14%. The high reliability of the fabrication procedures allows scaling of the devices up to 10 cm2, with a slight decrease in bias-free photocurrent den-sity from 0.39 ± 0.15 to 0.23 ± 0.10 mA cm−2 due to an increasing series resistance. To characterize these devices, a versatile 3D-printed PEC cell is also developed.
Mots-clé
Renewable Energy, Sustainability and the Environment, General Materials Science
Création de la notice
13/07/2018 14:38
Dernière modification de la notice
20/08/2019 15:10
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