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Long afterglow luminescent material is still continuing for a long time after an off light source emitting new functional materials, and is widely used in emergency lighting, military, arts and crafts, optical information storage, imaging, display and radiation detection field, its shape is extended by the powder to a film, glass, ceramic, etc.. But as one of the three primary colors of red long afterglow luminescent properties of the light-emitting materials can not achieve the requirements of the practical application of long afterglow materials to some extent inhibited. Therefore, the research and development of new red long afterglow materials become the urgent problem. CaTiO3: Pr3 red long afterglow material has good stability and its color coordinate values ??(x = 0.68, y = 0.31) is very close with NTSC ideal red coordinate (x = 0.67, y = 0.33), has aroused widespread attention. This paper aims through a new process of the sol-gel combustion method preparation class red long afterglow materials to the research and development of an inexpensive, non-polluting energy efficient red long afterglow material. This work was supported in previous experimental studies of CaTiO3: Pr3 red long afterglow materials based on the findings of using the sol-gel Combustion Method CaTio3: Pr3 red long afterglow materials. This finding overcomes the traditional high-temperature calcination of the solid phase prepared luminescent material is high temperature, the samples prepared with a large particle size disadvantage, and to avoid the Preparation of the luminescent material of the sol-gel when wet gel process for preparing xerogel, shortening production cycle, when you reach the section, the energy-saving effect. This paper for the first time using the sol-gel combustion method to CaTiO3 matrix the zinc nitrate cosolvent, sodium carbonate for charge compensation successfully prepared Ca0.8Zn0.2TiO3 of: Pr3, Na nanometer red long afterglow materials. By XRD, SEM and fluorescence spectrophotometer, thermoluminescence spectrometer and illuminometer research Pr3 content, sintering temperature, holding time, heating rate of the sample material, morphology and luminescence properties of. The results show that the the sample excitation peak of 328 nm, emission peak at 613 nm, the afterglow time longest 10Omin (≥ mcd/m2) After comparative experiments to determine Preparation Ca0.8Zn0.2TiO3: Pr3, Na nanometer red long afterglow The best material conditions: nominal component Ca0.796Zn0.2TiO3: 0.002Pr3 0.002 Na calcination temperature of 800 ° C, holding time 3 h, the heating rate of 5 to 7 ° C / min. Long Afterglow films in recent years is proposed that can be applied to field emission display, sol-gel combustion prepared Ca0.8Zn0.2TiO3: Pr3, Na best parameters used in preparation Ca0.8Zn0.2TiO3: Pr3 Na long Afterglow film. The use of XRD, SEM, the fluorescence spectrophotometer illuminometer study the sintering temperature, the sol concentration, pulling speed, thin-film layers of film material, morphology and luminescent properties of impact. The results showed that, the sample excitation peak of 328 nm, emission peak at 614 nm, compared with powder nm redshift afterglow time up to 130s (≥ mcd/m2). After comparative experiments to determine Preparation Ca0.8Zn0.2TiO3: Pr3, Na nano red long afterglow film best conditions: calcination temperature of 850 ° C, the sol concentration of 0.25 ~ 0.3mol / L, pulling rate 7.36 ~ 10.36cm/min (10 ~ 13V), thin-film layers 8 layers.
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