Strontium indium pyrophosphate fluorescent matrix material, fluorescent material as well as preparation and application of strontium indium pyrophosphate fluorescent matrix material
A technology of indium strontium orthopyrophosphate and indium strontium pyrophosphate, which is applied in the field of phosphate matrix materials for rare earth phosphors and its preparation, and can solve the problems of rare exploration of new matrix materials
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Embodiment 1
[0077] Example 1: Sr 2 In(PO 4 )(P 2 o 7 ) Preparation of phosphor matrix
[0078] Weigh SrCO 3 、In 2 o 3 , NH 4 h 2 PO 4 According to the stoichiometric ratio of elements (Sr, In, P element ratio is 2:1:3), then add nitric acid to dissolve the raw materials, add polyvinyl alcohol solution after the solution is clarified (wherein, polyvinyl alcohol is SrCO 3 2 times the weight), heated and stirred until completely evaporated to dryness, put the beaker in a drying oven to dry and grind it evenly; then carry out two steps of final firing (the first stage sintering temperature is 600 ° C, keep warm for 12 hours and then cool to room temperature with the furnace, Grinding for 10 minutes; the sintering temperature of the second stage is 1150°C, after 24 hours of heat preservation, it is cooled to room temperature with the furnace, the heating rate of the first sintering is 3°C / min, and the heating rate of the second sintering is 5°C / min). Take out the burnt sample and gri...
Embodiment 2
[0089] Example 2: Sr 2 In(PO 4 )(P 2 o 7 ) Preparation of phosphor matrix (final firing temperature 1100°C)
[0090] SrCO 3 、In 2 o 3 , NH 4 h 2 PO 4 The ratio of Sr, In and P is 2:1:3, and the sintering temperature in the second step is 1100°C. The rest of the steps are the same as in Example 1.
Embodiment 3
[0091] Example 3: Sr 2 In(PO 4 )(P 2 o 7 ) Preparation of phosphor matrix (final firing temperature 1200°C)
[0092] SrCO 3 、In 2 o 3 , NH 4 h 2 PO 4 The ratio of Sr, In and P is 2:1:3, the sintering temperature in the second step is 1200°C, and the rest of the steps are the same as in Example 1.
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