Perovskite CsPbX3 (X=Cl, Br, I) Nanocrystals in fluorophosphate glasses

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Perovskite CsPbX₃ (X=Cl, Br, I) Nanocrystals in fluorophosphate glasses. / Kolobkova, E. V.; Kuznetsova, M. S.; Nikonorov, N. V.

In: Journal of Non-Crystalline Solids, Vol. 563, 120811, 01.07.2021.

Research output: Contribution to journal › Article › peer-review

Author

Kolobkova, E. V. ; Kuznetsova, M. S. ; Nikonorov, N. V. / Perovskite CsPbX₃ (X=Cl, Br, I) Nanocrystals in fluorophosphate glasses. In: Journal of Non-Crystalline Solids. 2021 ; Vol. 563.

BibTeX

@article{c9b5128d637d4a3c864f70c59af885e9,

title = "Perovskite CsPbX3 (X=Cl, Br, I) Nanocrystals in fluorophosphate glasses",

abstract = "For the first time, CsPbX3 (X=Cl, Br, I) nanocrystals (NCs) are synthesized in fluorophosphate glasses. The controlled formation of CsPbX3 quantum dots is realized by adjustment of cooling rate and heat treatment conditions. X-ray diffraction data and optical measurements have confirmed the formation of 4-11 nm sized CsPbX3 nanocrystals. The crystallization of CsPbCl3 is assumed to proceed according to a heterogeneous mechanism, with small CsPbBr NCs acting as nuclei. The introduction of two anions (Cl, Br or Br, I) has results in the appearance of two narrow bands in the luminescence spectra corresponding to quantum dots with different chemical compositions, suggesting that the preparation of NCs with a mixed anion is complicated by phase segregation during the high-temperature synthesis. The photoluminescence of CsPb(Cl, Br)3 quantum dots has a high intensity with a quantum yield of 45-50 % and narrow emission band.",

keywords = "Fluorophosphate glass, Perovskite nanocrystals, Photoluminescence, Quantum dots, CSPBBR3 QUANTUM DOTS, QDS, PRECIPITATION, STABILITY, OPTICAL-PROPERTIES, ION-EXCHANGE, HALIDE PEROVSKITES, EMISSION",

author = "Kolobkova, {E. V.} and Kuznetsova, {M. S.} and Nikonorov, {N. V.}",

year = "2021",

month = jul,

day = "1",

doi = "10.1016/j.jnoncrysol.2021.120811",

language = "English",

volume = "563",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Perovskite CsPbX3 (X=Cl, Br, I) Nanocrystals in fluorophosphate glasses

AU - Kolobkova, E. V.

AU - Kuznetsova, M. S.

AU - Nikonorov, N. V.

PY - 2021/7/1

Y1 - 2021/7/1

N2 - For the first time, CsPbX3 (X=Cl, Br, I) nanocrystals (NCs) are synthesized in fluorophosphate glasses. The controlled formation of CsPbX3 quantum dots is realized by adjustment of cooling rate and heat treatment conditions. X-ray diffraction data and optical measurements have confirmed the formation of 4-11 nm sized CsPbX3 nanocrystals. The crystallization of CsPbCl3 is assumed to proceed according to a heterogeneous mechanism, with small CsPbBr NCs acting as nuclei. The introduction of two anions (Cl, Br or Br, I) has results in the appearance of two narrow bands in the luminescence spectra corresponding to quantum dots with different chemical compositions, suggesting that the preparation of NCs with a mixed anion is complicated by phase segregation during the high-temperature synthesis. The photoluminescence of CsPb(Cl, Br)3 quantum dots has a high intensity with a quantum yield of 45-50 % and narrow emission band.

AB - For the first time, CsPbX3 (X=Cl, Br, I) nanocrystals (NCs) are synthesized in fluorophosphate glasses. The controlled formation of CsPbX3 quantum dots is realized by adjustment of cooling rate and heat treatment conditions. X-ray diffraction data and optical measurements have confirmed the formation of 4-11 nm sized CsPbX3 nanocrystals. The crystallization of CsPbCl3 is assumed to proceed according to a heterogeneous mechanism, with small CsPbBr NCs acting as nuclei. The introduction of two anions (Cl, Br or Br, I) has results in the appearance of two narrow bands in the luminescence spectra corresponding to quantum dots with different chemical compositions, suggesting that the preparation of NCs with a mixed anion is complicated by phase segregation during the high-temperature synthesis. The photoluminescence of CsPb(Cl, Br)3 quantum dots has a high intensity with a quantum yield of 45-50 % and narrow emission band.

KW - Fluorophosphate glass

KW - Perovskite nanocrystals

KW - Photoluminescence

KW - Quantum dots

KW - CSPBBR3 QUANTUM DOTS

KW - QDS

KW - PRECIPITATION

KW - STABILITY

KW - OPTICAL-PROPERTIES

KW - ION-EXCHANGE

KW - HALIDE PEROVSKITES

KW - EMISSION

UR - http://www.scopus.com/inward/record.url?scp=85103413616&partnerID=8YFLogxK

U2 - 10.1016/j.jnoncrysol.2021.120811

DO - 10.1016/j.jnoncrysol.2021.120811

M3 - Article

AN - SCOPUS:85103413616

VL - 563

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

SN - 0022-3093

M1 - 120811

ER -

ID: 76126346