Revealing giant exciton fine-structure splitting in two-dimensional perovskites using van der Waals passivation
![Thumbnail](/xmlui/bitstream/handle/10234/200666/00000_MoraSeroI_2022.pdf.jpg?sequence=5&isAllowed=y)
Ver/ Abrir
Impacto
![Google Scholar](/xmlui/themes/Mirage2/images/uji/logo_google.png)
![Microsoft Academico](/xmlui/themes/Mirage2/images/uji/logo_microsoft.png)
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Revealing giant exciton fine-structure splitting in two-dimensional perovskites using van der Waals passivationAutoría
Fecha de publicación
2022-09-08Editor
ACS PublicationsISSN
1530-6984; 1530-6992Cita bibliográfica
Revealing Giant Exciton Fine-Structure Splitting in Two-Dimensional Perovskites Using van der Waals Passivation. Rodolfo Canet-Albiach, Marie Kreĉmarová, José Bosch Bailach, Andrés F. Gualdrón-Reyes, Jesús Rodríguez-Romero, Setatira Gorji, Hamid Pashaei-Adl, Iván Mora-Seró, Juan P. Martínez Pastor, Juan Francisco Sánchez-Royo, and Guillermo Muñoz-Matutano Nano Letters 2022 22 (18), 7621-7627Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/submittedVersionPalabras clave / Materias
Resumen
Organic–inorganic layered perovskites are currently some of the most promising 2D van der Waals materials. Low crystal quality usually broadens the exciton line width, obscuring the fine structure of the exciton in ... [+]
Organic–inorganic layered perovskites are currently some of the most promising 2D van der Waals materials. Low crystal quality usually broadens the exciton line width, obscuring the fine structure of the exciton in conventional photoluminescence experiments. Here, we propose a mechanical approach to reducing the effect of spectral diffusion by means of hBN capping on layered perovskites, revealing the exciton fine structure. We used a stochastic model to link the reduction of the spectral line width with the population of charge fluctuation centers present in the organic spacer. van der Waals forces between both lattices cause the partial clamping of the perovskite organic spacer molecules, and hence the amplitude of the overall spectral diffusion effect is reduced. Our work provides a low-cost solution to the problem of accessing important fine-structure excitonic state information, along with an explanation of the important carrier dynamics present in the organic spacer that affect the quality of the optical emission. [-]
Publicado en
Nano Letters 22, 18 (2022)Entidad financiadora
Agencia Estatal de Investigación. Ministerio de Ciencia e Innovación | European Regional Development Fund (ERDF) | Generalitat Valenciana
Código del proyecto o subvención
RTI2018-099015-J-I00 | PID2020-112507GB-I00 | PID2019-107314RB-I00
Título del proyecto o subvención
2D-SPD (two-dimensional semiconductor photonic dots) | S2QUIP project | PROMETEU/2021/082
Derechos de acceso
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
Aparece en las colecciones
- INAM_Articles [521]