Mostrar el registro sencillo del ítem
Controlling the Phase Segregation in Mixed Halide Perovskites through Nanocrystal Size
dc.contributor.author | Gualdrón Reyes, Andrés Fabián | |
dc.contributor.author | YOON, SEOG JOON | |
dc.contributor.author | Barea, Eva M | |
dc.contributor.author | Agouram, Said | |
dc.contributor.author | Muñoz-Sanjosé, Vicente | |
dc.contributor.author | Meléndez, Ángel M. | |
dc.contributor.author | Niño-Gómez, Martha E. | |
dc.contributor.author | Mora-Sero, Ivan | |
dc.date.accessioned | 2018-12-05T08:23:19Z | |
dc.date.available | 2018-12-05T08:23:19Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | GUALDRÓN-REYES, Andrés, et al. Controlling the Phase Segregation in Mixed Halide Perovskite through Nanocrystal Size. ACS Energy Letters 2019 4 (1), 54-62 | ca_CA |
dc.identifier.issn | 2380-8195 | |
dc.identifier.uri | http://hdl.handle.net/10234/177887 | |
dc.description.abstract | Mixed halide perovskites are one of the promising candidates in developing solar cells and light-emitting diodes (LEDs), among other applications, because of their tunable optical properties. Nonetheless, photoinduced phase segregation, by formation of segregated Br-rich and I-rich domains, limits the overall applicability. We tracked the phase segregation with increasing crystalline size of CsPbBr3–xIx and their photoluminescence under continuous-wave laser irradiation (405 nm, 10 mW cm–2) and observed the occurrence of the phase segregation from the threshold size of 46 ± 7 nm. These results have an outstanding agreement with the diffusion length (45.8 nm) calculated also experimentally from the emission lifetime and segregation rates. Furthermore, through Kelvin probe force microscopy, we confirmed the correlation between the phase segregation and the reversible halide ion migration among grain centers and boundaries. These results open a way to achieve segregation-free mixed halide perovskites and improve their performances in optoelectronic devices. | ca_CA |
dc.format.extent | 9 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Chemical Society | ca_CA |
dc.relation.isPartOf | ACS Energy Letters, 2018 | ca_CA |
dc.rights | This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | mixed halide perovskites | ca_CA |
dc.subject | solar cells | ca_CA |
dc.subject | phase segregation | ca_CA |
dc.subject | nanocrystals | ca_CA |
dc.title | Controlling the Phase Segregation in Mixed Halide Perovskites through Nanocrystal Size | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1021/acsenergylett.8b02207 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | https://pubs.acs.org/doi/full/10.1021/acsenergylett.8b02207 | ca_CA |
dc.contributor.funder | This work was supported by the University Jaume I (project SOLENPE UJI-B2016-05) and the European Research Council (ERC) via Consolidator Grant (724424 - No-LIMIT). In addition, we acknowledge the Spanish Ministry of Economy, Industry and Competitiveness (MINECO) and EU (FEDER) under project TEC2014-60173 and the Generalitat Valenciana under project Prometeo II 2015/004 and Prometeo/2018/098 (Q-Devices) for financial support. A.F.G.-R. acknowledges Colciencias for a Ph.D. 617-scholarship and Universidad Industrial de Santander through the Colciencias project 8836, external code 110265843664. The authors are also grateful to the SCSIE-University of Valencia for providing TEM microscopy facilities and SCSI-University Jaume I for its help with SEM and XRD characterization. | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
Ficheros en el ítem
Este ítem aparece en la(s) siguiente(s) colección(ones)
-
INAM_Articles [506]