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Different concentrations of Dy3+ and perovskite quantum dots (PQDs) were simultaneously embedded in the BSi-Zn glasses by melt-quenching and heat-treatment subsequently. A battery of experimental results including TEM, distribution of different elements, and photoluminescence prove that partial Dy ions are successfully doped into CsPbI3 and played different roles depending on the doping concentration. When the Dy3+ concentration is circa 0.1mol%, Dy3+ as a nucleation agent reduces the energy required for the precipitation and growth of perovskite quantum dots, obtaining outstanding quantum efficiency of 31.82%. The excess Dy3+ supplement will prevent the mobility of PQDs elements. Based on the as-made glass sample, the remote fluorescent films have been successfully prepared. A kind of prototype lighting device was assembled, which demonstrated a high color rendering index of 96.5 under the current of 20 mA. Interestingly, by adjusting the concentration of Dy3+, color regulation can be achieved from orange-red light to yellow-white light.

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• Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  

Keyword: CsPbI3, Dy3+, Boron-silicate glass , Remote fluorescent films, High quantum efficiency

Date published: 2023-02-09

Publisher: Elsevier BV

Journal:

• JOURNAL OF NON-CRYSTALLINE SOLIDS (ISSN: 00223093) vol. 606 p. 122073-122073

Funding:

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4339

First published URL: https://doi.org/10.1016/j.jnoncrysol.2022.122073

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Updated at: 2025-02-09 12:30:15 +0900

Published on MDR: 2025-02-09 12:30:16 +0900