Ce/Mn/Cr: (Re,Y)3Al5O12 Phosphor Ceramics (Re = Gd, Tb and Lu) for White LED Lighting with Significant Spectral Redshift and Improved Color-Rendering Index

Yukun Li; Svenja Hanson; Cheng Heng Pang; Peng Lyu; Jun Jiang

doi:10.3390/ma16206667

Ce/Mn/Cr: (Re,Y)3Al5O12 Phosphor Ceramics (Re = Gd, Tb and Lu) for White LED Lighting with Significant Spectral Redshift and Improved Color-Rendering Index

Yukun Li, Svenja Hanson, Cheng Heng Pang, Peng Lyu, Jun Jiang

Research output: Journal Publication › Article › peer-review

Abstract

In order to attain phosphor ceramics with a high Color-Rendering Index (CRI), samples with the composition of Y_0.997−xRe_xCe_0.003)₃(Al_0.9748 Mn²⁺_0.024Cr³⁺_0.0012)₅O₁₂(Re_x = 0, Gd_0.333, Gd_0.666, Gd_0.997, Tb_0.333, Tb_0.666, Tb_0.997 and Lu_0.997 were prepared by solid-state reaction and vacuum sintering, and exhibited potential for high-quality, solid-state lighting. Doping with Cr³⁺ and Mn²⁺ effectively enhanced the red component of Ce³⁺ spectra through the intense energy transfer from Ce³⁺ ions to Mn²⁺/Cr³⁺ ions. The crystal field splitting of [GdO₈] and [TbO₈] was more extensive than that of [YO₈], causing a massive redshift in the Ce³⁺ emission peaks from 542 to 561 and 595 nm, while [LuO₈] had an opposite effect and caused a blueshift with a peak position at 512 nm. White LED devices incorporating Ce/Mn/Cr: (Gd_0.333Y_0.664)₃Al₅O₁₂ phosphor ceramic exhibited a high CRI of 83.97, highlighting the potential for enhancing the red-light component of white LED lighting.

Original language	English
Article number	6667
Journal	Materials
Volume	16
Issue number	20
DOIs	https://doi.org/10.3390/ma16206667
Publication status	Published - Oct 2023

Keywords

Ce/Mn/Cr: (Re,Y)AlO
full spectrum
garnet phosphor
laser lighting
spectral modulation

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.3390/ma16206667

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@article{0184a2fa75114bf18a79f67a02bc4072,

title = "Ce/Mn/Cr: (Re,Y)3Al5O12 Phosphor Ceramics (Re = Gd, Tb and Lu) for White LED Lighting with Significant Spectral Redshift and Improved Color-Rendering Index",

abstract = "In order to attain phosphor ceramics with a high Color-Rendering Index (CRI), samples with the composition of Y0.997−xRexCe0.003)3(Al0.9748 Mn2+0.024Cr3+0.0012)5O12(Rex = 0, Gd0.333, Gd0.666, Gd0.997, Tb0.333, Tb0.666, Tb0.997 and Lu0.997 were prepared by solid-state reaction and vacuum sintering, and exhibited potential for high-quality, solid-state lighting. Doping with Cr3+ and Mn2+ effectively enhanced the red component of Ce3+ spectra through the intense energy transfer from Ce3+ ions to Mn2+/Cr3+ ions. The crystal field splitting of [GdO8] and [TbO8] was more extensive than that of [YO8], causing a massive redshift in the Ce3+ emission peaks from 542 to 561 and 595 nm, while [LuO8] had an opposite effect and caused a blueshift with a peak position at 512 nm. White LED devices incorporating Ce/Mn/Cr: (Gd0.333Y0.664)3Al5O12 phosphor ceramic exhibited a high CRI of 83.97, highlighting the potential for enhancing the red-light component of white LED lighting.",

keywords = "Ce/Mn/Cr: (Re,Y)AlO, full spectrum, garnet phosphor, laser lighting, spectral modulation",

author = "Yukun Li and Svenja Hanson and Pang, {Cheng Heng} and Peng Lyu and Jun Jiang",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = oct,

doi = "10.3390/ma16206667",

language = "English",

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T1 - Ce/Mn/Cr: (Re,Y)3Al5O12 Phosphor Ceramics (Re = Gd, Tb and Lu) for White LED Lighting with Significant Spectral Redshift and Improved Color-Rendering Index

AU - Li, Yukun

AU - Hanson, Svenja

AU - Pang, Cheng Heng

AU - Lyu, Peng

AU - Jiang, Jun

PY - 2023/10

Y1 - 2023/10

N2 - In order to attain phosphor ceramics with a high Color-Rendering Index (CRI), samples with the composition of Y0.997−xRexCe0.003)3(Al0.9748 Mn2+0.024Cr3+0.0012)5O12(Rex = 0, Gd0.333, Gd0.666, Gd0.997, Tb0.333, Tb0.666, Tb0.997 and Lu0.997 were prepared by solid-state reaction and vacuum sintering, and exhibited potential for high-quality, solid-state lighting. Doping with Cr3+ and Mn2+ effectively enhanced the red component of Ce3+ spectra through the intense energy transfer from Ce3+ ions to Mn2+/Cr3+ ions. The crystal field splitting of [GdO8] and [TbO8] was more extensive than that of [YO8], causing a massive redshift in the Ce3+ emission peaks from 542 to 561 and 595 nm, while [LuO8] had an opposite effect and caused a blueshift with a peak position at 512 nm. White LED devices incorporating Ce/Mn/Cr: (Gd0.333Y0.664)3Al5O12 phosphor ceramic exhibited a high CRI of 83.97, highlighting the potential for enhancing the red-light component of white LED lighting.

AB - In order to attain phosphor ceramics with a high Color-Rendering Index (CRI), samples with the composition of Y0.997−xRexCe0.003)3(Al0.9748 Mn2+0.024Cr3+0.0012)5O12(Rex = 0, Gd0.333, Gd0.666, Gd0.997, Tb0.333, Tb0.666, Tb0.997 and Lu0.997 were prepared by solid-state reaction and vacuum sintering, and exhibited potential for high-quality, solid-state lighting. Doping with Cr3+ and Mn2+ effectively enhanced the red component of Ce3+ spectra through the intense energy transfer from Ce3+ ions to Mn2+/Cr3+ ions. The crystal field splitting of [GdO8] and [TbO8] was more extensive than that of [YO8], causing a massive redshift in the Ce3+ emission peaks from 542 to 561 and 595 nm, while [LuO8] had an opposite effect and caused a blueshift with a peak position at 512 nm. White LED devices incorporating Ce/Mn/Cr: (Gd0.333Y0.664)3Al5O12 phosphor ceramic exhibited a high CRI of 83.97, highlighting the potential for enhancing the red-light component of white LED lighting.

KW - Ce/Mn/Cr: (Re,Y)AlO

KW - full spectrum

KW - garnet phosphor

KW - laser lighting

KW - spectral modulation

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ER -

Ce/Mn/Cr: (Re,Y)3Al5O12 Phosphor Ceramics (Re = Gd, Tb and Lu) for White LED Lighting with Significant Spectral Redshift and Improved Color-Rendering Index

Abstract

Keywords

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