On the structure, synthesis, and characterization of ultrafast blue-emitting CsPbBr.sub.3./sub. nanoplatelets

Tomanová, K.; Čuba, V.; Brik, M.G.; Mihóková, Eva; Turtos, R.M.; Lecoq, P.; Auffray, E.; Nikl, Martin

doi:https://dx.doi.org/10.1063/1.5079300

Number of the records: 1

On the structure, synthesis, and characterization of ultrafast blue-emitting CsPbBr.sub.3./sub. nanoplatelets

1.

SYSNO ASEP	0520348
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	On the structure, synthesis, and characterization of ultrafast blue-emitting CsPbBr₃ nanoplatelets
Author(s)	Tomanová, K. (CZ) Čuba, V. (CZ) Brik, M.G. (CN) Mihóková, Eva (FZU-D)_{RID, ORCID, SAI} Turtos, R.M. (CH) Lecoq, P. (CH) Auffray, E. (CH) Nikl, Martin (FZU-D)_{RID, ORCID, SAI}
Number of authors	8
Article number	011104
Source Title	APL Materials - ISSN 2166-532X Roč. 7, č. 1 (2019), s. 1-12
Number of pages	12 s.
Language	eng - English
Country	US - United States
Keywords	nanoplatelets ; TOF PET ; photoluminescence ; scintillators ; nanocomposite ; crystal-structure ; perovskites ; CsPbBr₃
Subject RIV	CF - Physical ; Theoretical Chemistry
OECD category	Physical chemistry
R&D Projects	GA17-06479S GA ČR - Czech Science Foundation (CSF)
	EF16_027/0008215 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access
Institutional support	FZU-D - RVO:68378271
UT WOS	000457407500005
EID SCOPUS	85060452038
DOI	10.1063/1.5079300
Annotation	We synthesize colloidal CsPbBr3 nanoplatelets emitting blue light with fast sub-nanosecond decay. We also prepare a nanocomposite material by embedding the nanoplatelets in the polystyrene matrix. We show that blue emission is preserved provided the composite is not exposed to UV/vis light and/or elevated temperatures. Motivated by conflicting information from the literature about the room temperature structure of colloidal CsPbX3 (X = Cl, Br, I) particles, that results being orthorhombic, rather than cubic, we perform ab initio electronic structure calculations of bulk crystals with an orthorhombic structure. We calculate optical properties, as well as exciton diameters and binding energies and compare them to those previously obtained for cubic CsPbX3 crystals.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2020
Electronic address	http://hdl.handle.net/11104/0305030

Number of the records: 1