99138 20230622083323.0 doi 10.1039/d0tc04394j sideral 122592 ART-2021-122592 eng Tang, Y. Room temperature synthesis and characterization of novel lead-free double perovskite nanocrystals with a stable and broadband emission 2021 Access copy available to the general public Unrestricted 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. This journal is info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 8.067 2021 PHYSICS, APPLIED 24 / 161 = 0.149 2021 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 71 / 345 = 0.206 2021 Q1 T1 1.608 2021 Materials Chemistry 2021 Q1 Chemistry (miscellaneous) 2021 Q1 11.8 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Gomez, L. Van Der Laan, M. Timmerman, D. Sebastian, V. Universidad de Zaragoza (orcid)0000-0002-6873-5244 Huang, C.C. Gregorkiewicz, T. Schall, P. 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 9, 1 (2021), 158-163 J. mater. chem. C JOURNAL OF MATERIALS CHEMISTRY C 2050-7526 1518218 http://zaguan.unizar.es/record/99138/files/texto_completo.pdf Versión publicada 2844893 http://zaguan.unizar.es/record/99138/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:99138 articulos driver 2023-06-21-15:03:20 ARTICLE