Web of Science: 8 cites, Scopus: 7 cites, Google Scholar: cites,
Room temperature synthesis and characterization of novel lead-free double perovskite nanocrystals with a stable and broadband emission
Tang, Yingying (University of Amsterdam. Institute of Physics)
Gomez, Leyre (Institut Català de Nanociència i Nanotecnologia)
Van Der Laan, Marco (University of Amsterdam. Institute of Physics)
Timmerman, Dolf (Osaka University. Graduate School of Engineering)
Sebastian, Víctor (Universidad de Zaragoza. Instituto de Nanociencia y Materiales de Aragón)
Huang, Chia-Ching (University of Amsterdam. Institute of Physics)
Gregorkiewicz, Tom (University of Amsterdam. Institute of Physics)
Schall, Peter (University of Amsterdam. Institute of Physics)

Data: 2021
Resum: Low-dimensional and lead-free halide perovskites are of great interest for their wide application potential for optoelectronic applications. We report on the successful synthesis of novel lead-free colloidal Cs3BiBr6 nanocrystals (NCs) with an ultra-small size of ∼1. 5-3 nm by a room temperature antisolvent process. From crystallographic characterization we show that it is critical to precisely control the ratio of precursors to obtain the pure 3-1-6 phase. The synthesis process is facile and repeatable and results in Cs3BiBr6 NCs that display stable blue emission around 438 nm with a relatively broad linewidth of 92. 1 nm. Low-temperature photoluminescence (PL) measurements displayed a red-shift of bandgap with decreasing temperature, which might be attributed to the thermal expansion of the lattice. In addition, the NCs demonstrate high stability at ambient conditions.
Nota: Ajuts: we are grateful for the Dutch Technology Foundation STW, The Netherlands Organization for Scientific Research (NWO), and the Joint Solar Program (JSP III, 680-91-011) of The NWO for financial support. We acknowledge Arnon Lesage and Dido Van der Gon for their kind help. V. S. acknowledges the LMA-INA for offering access to their instruments and expertise.
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. Creative Commons
Llengua: Anglès
Document: Article ; recerca ; Versió publicada
Matèria: Antisolvent process ; Crystallographic characterization ; Double perovskites ; Halide perovskites ; Low temperature photoluminescence ; Optoelectronic applications ; Room temperature synthesis ; Stable blue emission
Publicat a: Journal of Materials Chemistry C, Vol. 9, issue 1 (2021) , p. 158-163, ISSN 2050-7534

DOI: 10.1039/d0tc04394j


6 p, 2.5 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > Institut Català de Nanociència i Nanotecnologia (ICN2)
Articles > Articles de recerca
Articles > Articles publicats

 Registre creat el 2021-03-17, darrera modificació el 2022-09-11



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