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Perovskite/Perovskite Tandem Solar Cells in the Substrate Configuration with Potential for Bifacial Operation

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Perovskite/Perovskite Tandem Solar Cells in the Substrate Configuration with Potential for Bifacial Operation

dc.contributor.author	Gil Escrig, Lidón
dc.contributor.author	Hu, Shuaifeng
dc.contributor.author	Zanoni, Kassio P. S.
dc.contributor.author	Paliwal, Abhyuday
dc.contributor.author	Hernández-Fenollosa, M. Ángeles
dc.contributor.author	Roldán-Carmona, Cristina
dc.contributor.author	Sessolo, Michele
dc.contributor.author	Wakamiya, Atsushi
dc.contributor.author	Bolink, Henk
dc.date.accessioned	2023-02-08T17:07:30Z
dc.date.available	2023-02-08T17:07:30Z
dc.date.issued	2022
dc.identifier.citation	Gil Escrig, Lidón Hu, Shuaifeng Zanoni, Kassio P. S. Paliwal, Abhyuday Hernández-Fenollosa, M. Ángeles Roldán-Carmona, Cristina Sessolo, Michele Wakamiya, Atsushi Bolink, Henk 2022 Perovskite/Perovskite Tandem Solar Cells in the Substrate Configuration with Potential for Bifacial Operation Acs Materials Letters 4 12 2638 2644
dc.identifier.uri	https://hdl.handle.net/10550/85361
dc.description.abstract	Perovskite/perovskite tandem solar cells have recently exceeded the record power conversion efficiency (PCE) of single-junction perovskite solar cells. They are typically built in the superstrate configuration, in which the device is illuminated from the substrate side. This limits the fabrication of the solar cell to transparent substrates, typically glass coated with a transparent conductive oxide (TCO), and adds constraints because the first subcell that is deposited on the substrate must contain the wide-bandgap perovskite. However, devices in the substrate configuration could potentially be fabricated on a large variety of opaque and inexpensive substrates, such as plastic and metal foils. Importantly, in the substrate configuration the narrow-bandgap subcell is deposited first, which allows for more freedom in the device design. In this work, we report perovskite/perovskite tandem solar cells fabricated in the substrate configuration. As the substrate we use TCO-coated glass on which a solution-processed narrow-bandgap perovskite solar cell is deposited. All of the other layers are then processed using vacuum sublimation, starting with the charge recombination layers, then the wide-bandgap perovskite subcell, and finishing with the transparent top TCO electrode. Proof-of-concept tandem solar cells show a maximum PCE of 20%, which is still moderate compared to those of best-in-class devices realized in the superstrate configuration yet higher than those of the corresponding single-junction devices in the substrate configuration. As both the top and bottom electrodes are semitransparent, these devices also have the potential to be used as bifacial tandem solar cells.
dc.language.iso	eng
dc.relation.ispartof	Acs Materials Letters, 2022, vol. 4, num. 12, p. 2638-2644
dc.subject	Materials
dc.subject	Cèl·lules fotoelèctriques
dc.title	Perovskite/Perovskite Tandem Solar Cells in the Substrate Configuration with Potential for Bifacial Operation
dc.type	journal article	es_ES
dc.date.updated	2023-02-08T17:07:31Z
dc.identifier.doi	10.1021/acsmaterialslett.2c01001
dc.identifier.idgrec	156863
dc.rights.accessRights	open access	es_ES