Toward high-power-density laser-driven lighting: enhancing heat dissipation in phosphor-in-glass film by introducing h-BN

In this work,  hexagonal boron nitride (h-BN) nanocrystals as functional additives in a phosphor-in-glass film are shown to substantially increase the luminous performance driven by a blue laser. Microstructural and spectroscopic studies reveal that h-BN particles distributed over the whole glass ma...

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Bibliographic Details
Published in:Optics letters 2022-07, Vol.47 (14), p.3455-3458
Main Authors: Sui, Ping, Lin, Hang, Lin, Yue, Lin, Shisheng, Huang, Jiajing, Xu, Ju, Cheng, Yao, Wang, Yuansheng
Format: Article
Language:English
Subjects:
Additives
Boron nitride
Composite materials
Converters
Density
Dissipation
Lighting
Nanocrystals
Phosphors
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Summary:In this work,  hexagonal boron nitride (h-BN) nanocrystals as functional additives in a phosphor-in-glass film are shown to substantially increase the luminous performance driven by a blue laser. Microstructural and spectroscopic studies reveal that h-BN particles distributed over the whole glass matrix build in situ a local heat conductive path which effectively accelerates heat dissipation and so greatly relieves the “thermal run-away effect”. The developed composite material with fine thermal manipulation may be a promising phosphor color converter for high-power-density laser-driven lighting.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.460008