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Coating evaporated MAPI thin films with organic molecules: improved stability at high temperature and implementation in high-efficiency solar cells

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Coating evaporated MAPI thin films with organic molecules: improved stability at high temperature and implementation in high-efficiency solar cells

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dc.contributor.author	Palazón Huet, Francisco
dc.contributor.author	Pérez-del-Rey, Daniel
dc.contributor.author	Marras, Sergio
dc.contributor.author	Prato, Mirko
dc.contributor.author	Sessolo, Michele
dc.contributor.author	Bolink, Henk
dc.contributor.author	Manna, Liberato
dc.date.accessioned	2019-09-16T14:13:43Z
dc.date.available	2019-09-16T14:13:43Z
dc.date.issued	2018
dc.identifier.citation	Palazón Huet, Francisco Pérez-del-Rey, Daniel Marras, Sergio Prato, Mirko Sessolo, Michele Bolink, Henk Manna, Liberato 2018 Coating Evaporated MAPI Thin Films with Organic Molecules: Improved Stability at High Temperature and Implementation in High-Efficiency Solar Cells Acs Energy Letters 3 4 835 839
dc.identifier.uri	https://hdl.handle.net/10550/71538
dc.description.abstract	Methylammonium lead iodide (MAPI) has proven to be an exceptional light-absorber for single-junction thin-film solar cells. Nonetheless, degradation induced by environmental agents (air, moisture, heat) limits the stability of this hybrid perovskite. Here, we demonstrate that coating evaporated MAPI thin films with different hydrophobic molecules leads to a significant improvement in their stability. We especially investigated the degradation of MAPI and the subsequent formation of PbI2 at 150 °C by in situ XRD analysis and showed that this transformation is remarkably slowed down in films coated with trioctyl phosphine oxide and tridodecyl methylammonium iodide. This enhances the processability of such films, which is an important aspect for the fabrication of thin-film devices. Eventually, we demonstrate that such protected films can be implemented in single-junction n−i−p solar cells without any loss in the device efficiency.
dc.language.iso	eng
dc.relation.ispartof	Acs Energy Letters, 2018, vol. 3, num. 4, p. 835-839
dc.subject	Energia
dc.subject	Calefacció solar
dc.title	Coating evaporated MAPI thin films with organic molecules: improved stability at high temperature and implementation in high-efficiency solar cells
dc.type	journal article	es_ES
dc.date.updated	2019-09-16T14:13:43Z
dc.identifier.doi	10.1021/acsenergylett.8b00193
dc.identifier.idgrec	124350
dc.rights.accessRights	open access	es_ES