Phosphor synthesis routes and their effect on the performance of garnet phosphorus at low-voltages

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Garnet phosphors have potential for use in field emission displays (FEDs). Green-emitting Gd{sub 3}Ga{sub 5}O{sub 12}:Tb (GGG:Tb) and Y{sub 3}Al{sub 5}O{sub 12}:Tb (YAG:Tb) are possible alternatives to ZnO:Zn, because of their excellent resistance to burn, low-voltage efficiency, (3.5 lm/W from GGG:Tb at 800 V), and saturation resistance at high power densities. Hydrothermal and combustion synthesis techniques were employed to improve the low-voltage efficiency of YAG:Tb, and Y{sub 3}Ga{sub 5}O{sub 12}:Tb (YGG:Tb). Synthetic technique did not affect low-voltage (100--1,000 V) efficiency, but affected the particle size, morphology, and burn resistance. The small particle size phosphors obtained via hydrothermal (<1 {micro}m) and ... continued below

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6 p.

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Shea, L.E.; McKittrick, J. & Phillips, M.L.F. July 1, 1996.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Garnet phosphors have potential for use in field emission displays (FEDs). Green-emitting Gd{sub 3}Ga{sub 5}O{sub 12}:Tb (GGG:Tb) and Y{sub 3}Al{sub 5}O{sub 12}:Tb (YAG:Tb) are possible alternatives to ZnO:Zn, because of their excellent resistance to burn, low-voltage efficiency, (3.5 lm/W from GGG:Tb at 800 V), and saturation resistance at high power densities. Hydrothermal and combustion synthesis techniques were employed to improve the low-voltage efficiency of YAG:Tb, and Y{sub 3}Ga{sub 5}O{sub 12}:Tb (YGG:Tb). Synthetic technique did not affect low-voltage (100--1,000 V) efficiency, but affected the particle size, morphology, and burn resistance. The small particle size phosphors obtained via hydrothermal (<1 {micro}m) and combustion reactions (<1 {micro}m) would benefit projection TV, high-definition TV (HDTV), and heads-up displays (HUDs), where smaller pixel sizes are required for high resolution.

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6 p.

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OSTI as DE96012939

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  • Spring meeting of the Materials Research Society (MRS), San Francisco, CA (United States), 8-12 Apr 1996

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  • Other: DE96012939
  • Report No.: SAND--96-1732C
  • Report No.: CONF-960401--65
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/266732 | External Link
  • Office of Scientific & Technical Information Report Number: 266732
  • Archival Resource Key: ark:/67531/metadc671340

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  • July 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • April 14, 2016, 6:33 p.m.

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Shea, L.E.; McKittrick, J. & Phillips, M.L.F. Phosphor synthesis routes and their effect on the performance of garnet phosphorus at low-voltages, report, July 1, 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc671340/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.