Photo-Induced Black Phase Stabilization of CsPbI3 QDs Films
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Otros documentos de la autoría: Erazo, Eider A.; Sánchez-Godoy, H. E.; Gualdrón Reyes, Andrés Fabián; Masi, Sofia; Mora-Sero, Ivan
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Título
Photo-Induced Black Phase Stabilization of CsPbI3 QDs FilmsAutoría
Fecha de publicación
2020Editor
MDPIISSN
2079-4991Cita bibliográfica
Erazo, E.A.; Sánchez-Godoy, H.; Gualdrón-Reyes, A.F.; Masi, S.; Mora-Seró, I. Photo-Induced Black Phase Stabilization of CsPbI3 QDs Films. Nanomaterials 2020, 10, 1586.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.mdpi.com/2079-4991/10/8/1586Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
α-CsPbI3 quantum dots (QDs) show outstanding photoelectrical properties that had been
harnessed in the fabrication of perovskite QDs solar cells. Nevertheless, the stabilization of the
CsPbI3 perovskite cubic phase ... [+]
α-CsPbI3 quantum dots (QDs) show outstanding photoelectrical properties that had been
harnessed in the fabrication of perovskite QDs solar cells. Nevertheless, the stabilization of the
CsPbI3 perovskite cubic phase remains a challenge due to its own thermodynamic and the presence
of surface defects. Herein, we report the optimization of the CsPbI3 QDs solar cells, by monitoring
the structure, the morphology and the optoelectronic properties after a precise treatment, consisting
of the conventional solvent washing with a time limited ultraviolet (UV) exposure combination,
during the layer-by-layer deposition. The UV treatment compensates the defects coming from the
essential but deleterious washing treatment. The material is stable for 200 h and the PCE improved by
the 25% compared with that of the device without UV treatment. The photo-enhanced ion mobility
mechanism is discussed as the main process for the CsPbI3 QDs and solar cell stability. [-]
Publicado en
Nanomaterials 2020, 10, 1586.Proyecto de investigación
724424-No-LIMIT, Prometeo/2018/098, Proyecto INV-2019-86-1798Derechos de acceso
info:eu-repo/semantics/openAccess
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