Homogeneous and inhomogeneous broadening in single perovskite nanocrystals investigated by micro-photoluminescence
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Otros documentos de la autoría: Pashaei Adl, Hamid; Gorji, Setatira; Muñoz-Matutano, Guillermo; Sánchez Alarcón, Raúl Ivan; Abargues, Rafael; Gualdrón Reyes, Andrés Fabián; Mora-Sero, Ivan; Martínez-Pastor, Juan P.
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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INVESTIGACIONMetadatos
Título
Homogeneous and inhomogeneous broadening in single perovskite nanocrystals investigated by micro-photoluminescenceAutoría
Fecha de publicación
2021-09-10Editor
Elsevier; North-HollandISSN
0022-2313Cita bibliográfica
ADL, Hamid Pashaei, et al. Homogeneous and inhomogeneous broadening in single perovskite nanocrystals investigated by micro-photoluminescence. Journal of Luminescence, 2021, p. 118453.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/journal/journal-of-luminescenceVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Metal halides with perovskite crystalline structure have given rise to efficient optoelectronic and photonic devices. In the present work, we have studied the light emission properties of single CsPbBr3 and CsPbI3 ... [+]
Metal halides with perovskite crystalline structure have given rise to efficient optoelectronic and photonic devices. In the present work, we have studied the light emission properties of single CsPbBr3 and CsPbI3 semiconductor perovskite nanocrystals (PNCs), as the basis for a statistical analysis of micro-photoluminescence (micro-PL) spectra measured on tens of them. At room temperature, the linewidth extracted from PL spectra acquired in dense films of these nanocrystals is not very different from that of micro-PL measured in single nanocrystals. This means that the homogeneous linewidth due to exciton-phonon interaction is comparable or larger than the inhomogeneous effect associated to the micro-PL peak energy dispersion due to the nanocrystal size distribution defined by the chemical synthesis of the PNCs. Contrarily, we observe very narrow micro-PL lines in CsPbBr3 and CsPbI3 PNCs at 4 K, in the range of 1–5 meV and 0.1–0.5 meV, respectively, because they are limited by spectral diffusion. Aging of PNCs under ambient conditions has been also studied by micro-PL and a clear reduction of their nanocube edge size in the order of the nm/day is deduced. [-]
Publicado en
Journal of Luminescence 240 (2021) 118453Datos relacionados
https://ars.els-cdn.com/content/image/1-s2.0-S002223132100569X-mmc1.docxEntidad financiadora
Ministerio de Ciencia e Innovación | Generalitat Valenciana
Código del proyecto o subvención
TEC2017-86102-C2-1 | PID2019-107314RB-I00 | Prometeo/2018/098 | RTI2018-099015-J-I00
Derechos de acceso
0022-2313 © 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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