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Phosphor-in-glass represents a promising avenue for merging the luminous efficiency of high-quality phosphor and the thermal stability of a glass matrix. Undoubtedly, the glass matrix system and its preparation are pivotal factors in achieving high stability and preserving the original performance of embedded phosphor particles. In contrast to the well-established commercial Y3Al5O12:Ce3+ oxide phosphor, red nitride phosphor, which plays a critical role in high-quality lighting, exhibits greater structural instability during the high-temperature synthesis of inorganic glasses. A telluride glass with a refractive index (RI = 2.15@615 nm) akin to that of nitride phosphor (∼2.19) has been devised, demonstrating high efficiency in photon utilization. The lower glass-transition temperature plays a crucial role in safeguarding phosphor particles against erosion resulting from exposure to high-temperature melts. Phosphor-in-glass retains 93% of the quantum efficiency observed for pure phosphor. The assembled white light-emitting diodes module has precise color tuning capabilities, achieving an optimal color rendering index of 93.7, a luminous efficacy of 80.4 lm/W, and a correlated color temperature of 5850 K. These outcomes hold potential for advancing the realm of inorganic package and high-quality white light illumination.

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• In Copyright
  This document is the Accepted Manuscript version of a Published Work that appeared in final form in Rational Design of Nitride Phosphor-In-Glass with Robust Stability and Photoluminescence Performance, copyright © 2024 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.inorgchem.4c00850

Keyword: luminescent materials

Date published: 2024-05-13

Publisher: American Chemical Society (ACS)

Journal:

• Inorganic Chemistry (ISSN: 00201669) vol. 63 issue. 19 p. 8889-8898

Funding:

• National Key Research and Development Program of China 2021YFB3500500
• Shanghai Rising-Star Program 21QC1401100
• Shanghai Institute of Technology and Development BFXT-2022-D0046
• Shanghai Institute of Technology and Development XTCX2022-03
• Science and Technology Talents Development Fund for Young Middle-aged Teachers Fund

Manuscript type: Author's version (Accepted manuscript)

MDR DOI:

First published URL: https://doi.org/10.1021/acs.inorgchem.4c00850

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Updated at: 2024-05-16 16:30:17 +0900

Published on MDR: 2025-05-02 08:19:53 +0900