Efficient Ligand Passivation Enables Ultrastable CsPbX3 Perovskite Nanocrystals in Fully Alcohol Environments
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INVESTIGACIONMetadatos
Título
Efficient Ligand Passivation Enables Ultrastable CsPbX3 Perovskite Nanocrystals in Fully Alcohol EnvironmentsAutoría
Fecha de publicación
2023Editor
WileyISSN
2195-1071Cita bibliográfica
Gualdrón-Reyes, A. F., Fernández-Climent, R., Masi, S., Mesa, C. A., Echeverría-Arrondo, C., Aiello, F., Balzano, F., Uccello-Barretta, G., Rodríguez-Pereira, J., Giménez, S., Mora-Seró, I., Efficient Ligand Passivation Enables Ultrastable CsPbX3 Perovskite Nanocrystals in Fully Alcohol Environments. Adv. Optical Mater. 2023, 2203096. https://doi.org/10.1002/adom.202203096Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://onlinelibrary.wiley.com/doi/full/10.1002/adom.202203096Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Halide perovskite nanocrystals (PNCs) have demonstrated their wide potential to fabricate efficient optoelectronic devices and to prepare promising photocatalysts for solar-driven photo(electro)chemical reactions. ... [+]
Halide perovskite nanocrystals (PNCs) have demonstrated their wide potential to fabricate efficient optoelectronic devices and to prepare promising photocatalysts for solar-driven photo(electro)chemical reactions. However, their use in most of the practical applications is limited due to the instability of PNCs in polar environments. Here, the preparation of non-encapsulated CsPbX3 nanocrystals dispersed in fully alcohol environments, with outstanding stability through surface defect passivation strategy is reported. By using didodecyldimethylammonium bromide (DDAB) during material post-treatment, highly luminescent CsPbBr3 PNCs with remarkable stability in methanol/butanol medium up to 7 months with near-unity photoluminescence quantum yield are achieved. This approach is extrapolated to stabilize iodine-based CsPbBr3-xIx and CsPbI3 PNCs, showing an improvement of their photoluminescence features and stability in these high polar alcohols up to 6 h. DDAB mediates the defect suppression through ligand exchange and avoids the full permeation of alcohol to be in contact with the PNCs. In this context, DDAB induces ionization of alcohol molecules to strengthen the surface passivation. The findings open the door to the development of long-term stable CsPbX3 PNCs with high optical performance to be used in polar environments. [-]
Publicado en
Advanced Optical Materials, 2023Entidad financiadora
European Innovation Council (EIC) | Ministerio de Ciencia, Innovación y Universidades | Generalitat Valenciana | APOSTD | Ministry of Education, Youth and Sports, Czech Republic
Identificador de la entidad financiadora
http://dx.doi.org/10.13039/501100011033
Código del proyecto o subvención
101071010 | PID2019-107314RB-I00 | PID2020-116093RB-C41 | PID2021-122960OA-I00 | CIPROM/2021/078 | APOSTD/2021/251 | LM 2018103
Título del proyecto o subvención
Nuevas Perovskitas de Haluro Obtenidas Mediante la Estabilización de la Fase Perovskita a Través de la Energía Superficial para Dispositivos Optoelectrónicos Avanzados | Desarrollo de sistemas electrocatalíticos integrados para la síntesis de productos químicos de alto valor añadido'
Derechos de acceso
info:eu-repo/semantics/openAccess
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