Preparation, characterization and VUV luminescence property of YPO4:Tb phosphor for a PDP

Green-emitting phosphor YPO4:Tb used in a PDP was prepared by two different methods, i.e., conventional solid-state reaction route and solution-based co-precipitation route. Results indicated that in solution-based co-precipitation route, a lower temperature was required, no grinding and milling pro...

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Bibliographic Details
Published inOptical materials Vol. 27; no. 8; pp. 1386 - 1390
Main Authors Di, Weihua, Wang, Xiaojun, Chen, Baojiu, Lai, Huasheng, Zhao, Xiaoxia
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.05.2005
Elsevier Science
Subjects
Co-precipitation
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Luminescent properties
Optical materials
Optics
Physics
VUV
YPO4
YPO4
Co-precipitation
VUV
Luminescent properties
Terbium additions
Powders
Ternary compounds
Surface morphology
Luminescence
Doped materials
Plasma display panel
Experimental study
Grinding
Phosphors
Emission spectra
Yttrium phosphates
Excitation spectrum
Optical materials
Extreme ultraviolet spectra
Coprecipitation
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Summary:Green-emitting phosphor YPO4:Tb used in a PDP was prepared by two different methods, i.e., conventional solid-state reaction route and solution-based co-precipitation route. Results indicated that in solution-based co-precipitation route, a lower temperature was required, no grinding and milling processes were introduced, and the starting materials were mixed at molecular level, compared with conventional solid-state reaction route. Therefore, the phosphor particles obtained from solution-based co-precipitation route had several advantages in the morphology, such as excellent surface quality, almost spherical shape, narrow size distribution, and homogeneous composition. The excitation spectrum measurement showed that YPO4 hosts had high energy absorption in VUV range, which makes it possible that YPO4:Tb phosphors are used in a PDP. The emission spectrum of YPO4:Tb under 147nm excitation indicated that the phosphor powders obtained from solution-based co-precipitation route had high luminance since they have excellent morphologies and homogeneous composition, compared with those obtained from conventional solid-state reaction route.
ISSN:0925-3467
1873-1252
DOI:10.1016/j.optmat.2004.10.001