The effect of powder preparation processes on the luminescent properties of yttrium oxide based phosphor materials

S. Erdei, R. Roy, G. Harshe, H. Juwhari, D. Agrawal, F. W. Ainger, W. B. White

Research output: Contribution to journalArticle

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Abstract

Eu and Tb3+ doped Y2O3, Y2SiO5 and Y3Al5O12(YAG) phosphor materials were prepared by different routes to investigate their effect on luminescent characteristics in micron and submicron particle size powders. Both amorphous low temperature co-precipitate reacted and crystalline high temperature solid state reacted (reference) powders were further crystallized in steam(S) and fluoriferous steam (SF) atmospheres at 1000 \ ̀ghC for 8 hours, respectively. In spite of sharp XRD peaks in S, SF treated samples, all SEM images exhibited "soft" aggregates of about 3 μm in average diameter consisting of 0.2-0.3 μm small particles. The powder samples characterized by XRD, SEM and luminescence spectra indicated that low temperature reacted samples which were further crystallized in steam or fluoriferous steam have greater improvements in the luminescent intensity than solid state reacted Y2O3, Y2SiO5 based phosphors after S, SF treatments.

Original languageEnglish (US)
Pages (from-to)745-753
Number of pages9
JournalMaterials Research Bulletin
Volume30
Issue number6
DOIs
StatePublished - Jun 1995

Fingerprint

yttrium oxides
Yttrium oxide
Steam
steam
Phosphors
Powders
phosphors
preparation
solid state
Scanning electron microscopy
scanning electron microscopy
yttrium-aluminum garnet
Temperature
luminous intensity
Luminescence
Precipitates
precipitates
Particle size
routes
luminescence

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Erdei, S. ; Roy, R. ; Harshe, G. ; Juwhari, H. ; Agrawal, D. ; Ainger, F. W. ; White, W. B. / The effect of powder preparation processes on the luminescent properties of yttrium oxide based phosphor materials. In: Materials Research Bulletin. 1995 ; Vol. 30, No. 6. pp. 745-753.
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The effect of powder preparation processes on the luminescent properties of yttrium oxide based phosphor materials. / Erdei, S.; Roy, R.; Harshe, G.; Juwhari, H.; Agrawal, D.; Ainger, F. W.; White, W. B.

In: Materials Research Bulletin, Vol. 30, No. 6, 06.1995, p. 745-753.

Research output: Contribution to journalArticle

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AU - Roy, R.

AU - Harshe, G.

AU - Juwhari, H.

AU - Agrawal, D.

AU - Ainger, F. W.

AU - White, W. B.

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AB - Eu and Tb3+ doped Y2O3, Y2SiO5 and Y3Al5O12(YAG) phosphor materials were prepared by different routes to investigate their effect on luminescent characteristics in micron and submicron particle size powders. Both amorphous low temperature co-precipitate reacted and crystalline high temperature solid state reacted (reference) powders were further crystallized in steam(S) and fluoriferous steam (SF) atmospheres at 1000 \ ̀ghC for 8 hours, respectively. In spite of sharp XRD peaks in S, SF treated samples, all SEM images exhibited "soft" aggregates of about 3 μm in average diameter consisting of 0.2-0.3 μm small particles. The powder samples characterized by XRD, SEM and luminescence spectra indicated that low temperature reacted samples which were further crystallized in steam or fluoriferous steam have greater improvements in the luminescent intensity than solid state reacted Y2O3, Y2SiO5 based phosphors after S, SF treatments.

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