Glycothermal synthesis and photoluminescence of YAG: Ce3+ nanophosphors

R. Kasuya, Tetsuhiko Isobe, H. Kuma

Research output: Contribution to journalArticle

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Abstract

Y3Al 5O12:Ce3+ (YAG:Ce 3+) nanophosphor powder was synthesized by glycothermal method, where a reaction between aluminum isopropoxide and acetates of yttrium and cerium(III) was induced in 1,4-butylene glycol in autoclave. According to X-ray diffraction profiles, YAG crystal structure was formed after glycothermal treatment at 300 °C for more than 1 h. The aggregation of the primary particles of ∼10 nm diameter was confirmed by TEM observation and dynamic light scattering. The intensity of photoluminescence (PL) due to 5d → 4f transition of Ce3+ increased with increasing the aging time at 300 °C during glycothermal treatment. The inductively coupled plasma atomic emission spectroscopy revealed that the atomic ratio of Ce/(Y + Ce) remained unchanged irrespective of the aging time at 300 °C. Therefore, this suggests that prolonged aging promotes the homogeneous incorporation of Ce 3+ into the interior of particle. Based on the characterization by thermal analysis and infrared absorption spectroscopy, the coordination of 1,4-butylene glycol and acetate on the surface of YAG:Ce3+ nanophosphors possibly plays a significant role in the PL enhancement.

Original languageEnglish
Pages (from-to)820-823
Number of pages4
JournalJournal of Alloys and Compounds
Volume408-412
DOIs
Publication statusPublished - 2006 Feb 9

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Photoluminescence
Aging of materials
Glycols
Acetates
Atomic emission spectroscopy
Cerium
Yttrium
Autoclaves
Infrared absorption
Inductively coupled plasma
Dynamic light scattering
Aluminum
Absorption spectroscopy
Powders
Thermoanalysis
Infrared spectroscopy
Agglomeration
Crystal structure
Transmission electron microscopy
X ray diffraction

Keywords

  • Luminescence
  • Nanofabrications
  • Nuclear resonance
  • Phosphors

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Glycothermal synthesis and photoluminescence of YAG : Ce3+ nanophosphors. / Kasuya, R.; Isobe, Tetsuhiko; Kuma, H.

In: Journal of Alloys and Compounds, Vol. 408-412, 09.02.2006, p. 820-823.

Research output: Contribution to journalArticle

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AU - Isobe, Tetsuhiko

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AB - Y3Al 5O12:Ce3+ (YAG:Ce 3+) nanophosphor powder was synthesized by glycothermal method, where a reaction between aluminum isopropoxide and acetates of yttrium and cerium(III) was induced in 1,4-butylene glycol in autoclave. According to X-ray diffraction profiles, YAG crystal structure was formed after glycothermal treatment at 300 °C for more than 1 h. The aggregation of the primary particles of ∼10 nm diameter was confirmed by TEM observation and dynamic light scattering. The intensity of photoluminescence (PL) due to 5d → 4f transition of Ce3+ increased with increasing the aging time at 300 °C during glycothermal treatment. The inductively coupled plasma atomic emission spectroscopy revealed that the atomic ratio of Ce/(Y + Ce) remained unchanged irrespective of the aging time at 300 °C. Therefore, this suggests that prolonged aging promotes the homogeneous incorporation of Ce 3+ into the interior of particle. Based on the characterization by thermal analysis and infrared absorption spectroscopy, the coordination of 1,4-butylene glycol and acetate on the surface of YAG:Ce3+ nanophosphors possibly plays a significant role in the PL enhancement.

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