Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/303449
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Statistical analysis of photoluminescence decay kinetics in quantum dot ensembles: Effects of inorganic shell composition and environment |
Autor: | Martins, João R.; Krivenkov, Victor CSIC ORCID; Bernardo, César R.; Samokhvalov, Pavel S.; Nabiev, Igor; Rakovich, Yury P. CSIC ORCID; Vasilevskiy, Mikhail I. | Fecha de publicación: | 2022 | Editor: | American Chemical Society | Citación: | Journal of Physical Chemistry C 126(48): 20480-20490 (2022) | Resumen: | Discerning the kinetics of photoluminescence (PL) decay of packed quantum dots (QDs) and QD-based hybrid materials is of crucial importance for achieving their promising potential. However, the interpretation of the decay kinetics of QD-based systems, which usually are not single-exponential, remains challenging. Here, we present a method for analyzing photoluminescence (PL) decay curves of fluorophores by studying their statistical moments. A certain combination of such moments, named as the n-th order moments’ ratio, Rn, is studied for several theoretical decay curves and experimental PL kinetics of CdSe quantum dots (QDs) acquired by time-correlated single photon counting (TCSPC). For the latter, three different case studies using the Rn ratio analysis are presented, namely, (i) the effect of the inorganic shell composition and thickness of the core–shell QDs, (ii) QD systems with Förster resonance energy transfer (FRET) decay channels, and (iii) system of QDs near a layer of plasmonic nanoparticles. The proposed method is shown to be efficient for the detection of slight changes in the PL kinetics, being time-efficient and requiring low computing power for performing the analysis. It can also be a powerful tool to identify the most appropriate physically meaningful theoretical decay function, which best describes the systems under study. | Versión del editor: | https://doi.org/10.1021/acs.jpcc.2c06134 | URI: | http://hdl.handle.net/10261/303449 | DOI: | 10.1021/acs.jpcc.2c06134 | E-ISSN: | 1932-7455 |
Aparece en las colecciones: | (CFM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
statienviro.pdf | 5,95 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
2
checked on 21-abr-2024
WEB OF SCIENCETM
Citations
1
checked on 22-feb-2024
Page view(s)
24
checked on 22-abr-2024
Download(s)
23
checked on 22-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Este item está licenciado bajo una Licencia Creative Commons