Controllable Eu valence for photoluminescence tuning in apatite-typed phosphors by the cation cosubstitution effect

Guogang Li; Chun Che Lin; Yi Wei; Zewei Quan; Ying Tian; Yun Zhao; Ting Shan Chan; Jun Lin

doi:10.1039/c6cc01969b

Controllable Eu valence for photoluminescence tuning in apatite-typed phosphors by the cation cosubstitution effect

Guogang Li, Chun Che Lin, Yi Wei, Zewei Quan, Ying Tian, Yun Zhao, Ting Shan Chan, Jun Lin

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

45 Citations (Scopus)

Abstract

By cosubstituting [Ca²⁺-P⁵⁺] for [La³⁺-Si⁴⁺] in the Eu-doped Ca_(2→8)La_(8→2)(SiO₄)_6-x(PO₄)_xO₂ (0 ≤ x ≤ 6) system, Eu³⁺ ions are controllably and gradually transformed to Eu²⁺. Thus, the emission colors consecutively changed from red to blue/green light. Furthermore, excellent warm-white lights with the low correlated color temperature (CCT) range of 3500-3800 K and a high color rendering index (R_a) (88.4-93.2) have been achieved by mixing the as-prepared phosphors at different cation cosubstitution ratios.

Original language	English
Pages (from-to)	7376-7379
Number of pages	4
Journal	Chemical Communications
Volume	52
Issue number	46
DOIs	https://doi.org/10.1039/c6cc01969b
Publication status	Published - Jan 1 2016
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
General Chemistry
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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title = "Controllable Eu valence for photoluminescence tuning in apatite-typed phosphors by the cation cosubstitution effect",

abstract = "By cosubstituting [Ca2+-P5+] for [La3+-Si4+] in the Eu-doped Ca(2→8)La(8→2)(SiO4)6-x(PO4)xO2 (0 ≤ x ≤ 6) system, Eu3+ ions are controllably and gradually transformed to Eu2+. Thus, the emission colors consecutively changed from red to blue/green light. Furthermore, excellent warm-white lights with the low correlated color temperature (CCT) range of 3500-3800 K and a high color rendering index (Ra) (88.4-93.2) have been achieved by mixing the as-prepared phosphors at different cation cosubstitution ratios.",

author = "Guogang Li and Lin, {Chun Che} and Yi Wei and Zewei Quan and Ying Tian and Yun Zhao and Chan, {Ting Shan} and Jun Lin",

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T1 - Controllable Eu valence for photoluminescence tuning in apatite-typed phosphors by the cation cosubstitution effect

AU - Li, Guogang

AU - Lin, Chun Che

AU - Wei, Yi

AU - Quan, Zewei

AU - Tian, Ying

AU - Zhao, Yun

AU - Chan, Ting Shan

AU - Lin, Jun

PY - 2016/1/1

Y1 - 2016/1/1

N2 - By cosubstituting [Ca2+-P5+] for [La3+-Si4+] in the Eu-doped Ca(2→8)La(8→2)(SiO4)6-x(PO4)xO2 (0 ≤ x ≤ 6) system, Eu3+ ions are controllably and gradually transformed to Eu2+. Thus, the emission colors consecutively changed from red to blue/green light. Furthermore, excellent warm-white lights with the low correlated color temperature (CCT) range of 3500-3800 K and a high color rendering index (Ra) (88.4-93.2) have been achieved by mixing the as-prepared phosphors at different cation cosubstitution ratios.

AB - By cosubstituting [Ca2+-P5+] for [La3+-Si4+] in the Eu-doped Ca(2→8)La(8→2)(SiO4)6-x(PO4)xO2 (0 ≤ x ≤ 6) system, Eu3+ ions are controllably and gradually transformed to Eu2+. Thus, the emission colors consecutively changed from red to blue/green light. Furthermore, excellent warm-white lights with the low correlated color temperature (CCT) range of 3500-3800 K and a high color rendering index (Ra) (88.4-93.2) have been achieved by mixing the as-prepared phosphors at different cation cosubstitution ratios.

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Controllable Eu valence for photoluminescence tuning in apatite-typed phosphors by the cation cosubstitution effect

Abstract

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