Interfacial Passivation of Perovskite Solar Cells by Reactive Ion Scavengers
Impacte
![Google Scholar](/xmlui/themes/Mirage2/images/uji/logo_google.png)
![Microsoft Academico](/xmlui/themes/Mirage2/images/uji/logo_microsoft.png)
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
comunitat-uji-handle4:
INVESTIGACIONMetadades
Títol
Interfacial Passivation of Perovskite Solar Cells by Reactive Ion ScavengersAutoria
Data de publicació
2021-02-22Editor
American Chemical SocietyISSN
2574-0962Cita bibliogràfica
Teymourinia, H.; Gonzales, C.; Gallardo, J. J.; Salavati-Niasari, M.; Bisquert, J.; Navas, J.; Guerrero, A. Interfacial Passivation of Perovskite Solar Cells by Reactive Ion Scavengers. ACS Appl. Energy Mater. 2021, 4, 2, 1078–1084. DOI: 10.1021/acsaem.0c01804Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://pubs.acs.org/doi/10.1021/acsaem.0c01804Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
Lead halide perovskites suffer from uncontrolled ion migration and the interactions at the external contacts play a fundamental role in the hysteretic response and performance degradation kinetics. In this work, we ... [+]
Lead halide perovskites suffer from uncontrolled ion migration and the interactions at the external contacts play a fundamental role in the hysteretic response and performance degradation kinetics. In this work, we passivate the external interfaces by a reaction of migrating iodide ions with a silver buffer layer placed between Spiro-OMeTAD and Au layers. In the presence of an electrical field, iodine migration occurs and ions that are close to the perovskite/contact interface irreversibly form a layer of AgI. Overall, the interfacial reaction of iodide ions totally suppresses hysteresis and leads to more stable devices. A new sample preparation method unburies the reactive interface, which is then probed by X-ray photoelectron spectroscopy measurements. The kinetics of the layer formation are monitored by impedance spectroscopy highlighting that in the presence of an electrical field and light, the reaction occurs in the order of minutes. We further identify the resistive response of AgI in operating devices. The present work provides a new approach to passivate the external interfaces in lead halide perovskites. [-]
Publicat a
ACS Applied Energy Materials, 2021, vol. 4, no 2Entitat finançadora
Generalitat Valenciana | Andalusian Government | The council of Iran National Science Foundation | University of Kashan
Codi del projecte o subvenció
PROMETEO/2020/028 | GRISOLIAP/2019/048 | SOL-201800107510-TRA | 97017837 | 159271/811290
Drets d'accés
info:eu-repo/semantics/openAccess
Apareix a les col.leccions
- INAM_Articles [523]