Near-infrared long-afterglow luminescent material having photo-stimulated luminescence and its preparation method and use
A luminescent material and light-excited technology, applied in luminescent materials, chemical instruments and methods, preparations for in vivo experiments, etc., can solve problems such as inability to achieve multiple detections, luminous intensity attenuation, etc., to increase afterglow time, increase Effect of Luminous Intensity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0031] Example 1
[0032] According to the following composition: Near infrared long afterglow luminescent material LaAlO 3 : Mn x , the doping amount x of Mn ions is 0.0001mol%; Weigh lanthanum oxide, aluminum oxide, and manganese carbonate respectively, grind and mix, pre-fire at 600 °C for 4 hours, take out, grind again, and fire at 1300 °C 5 hours.
[0033] The fluorescence spectrum of the sample prepared in this example is as follows figure 1 As shown, fluorescence at 600nm-800nm was emitted under excitation at 336nm, and the emission peaks were at 731nm, 725nm, 717nm, 710nm, 704nm, 698nm, and 691nm. figure 2 The excitation spectra corresponding to all emission peaks are shown in , and the excitation peaks corresponding to all monitored emission peaks are 336 nm and a broad peak at 450 nm-550 nm with a peak at 500 nm. image 3 The long afterglow fluorescence spectrum of 1 minute after the sample prepared in this example is irradiated under sunlight for 10 minutes i...
Example Embodiment
[0035] Example 2
[0036] According to the following composition: Near infrared long afterglow luminescent material LaAlO 3 : Mn x ,Ge n , wherein the doping amount x of Mn ions is 0.3 mol%, and the doping amount n of germanium ions is 1 mol%; respectively weigh lanthanum oxide, aluminum oxide, manganese carbonate and germanium oxide, grind and mix them, and pre-fire at 900 °C After 1 hour, it was taken out, and after grinding again, it was fired at 1450° C. for 4 hours.
[0037] The fluorescence spectrum and excitation spectrum of the samples prepared in this example are as follows: Figure 7It is shown that the fluorescence at 600nm-800nm is emitted under excitation at 336nm, and the emission peaks are at 731nm, 725nm, 717nm, 710nm, 704nm, 698nm, 691nm, and the excitation peaks corresponding to all monitored emission peaks are 336nm and a 450nm-550nm with a broad peak at 500nm. Figure 8 The samples prepared in this example were irradiated under sunlight for 10 minute...
Example Embodiment
[0038] Example 3
[0039] According to the following composition: Near infrared long afterglow luminescent material LaAlO 3 : Mn x , Fe n , where the doping amount x of Mn ions is 0.5 mol%, and the doping amount n of iron ions is 5 mol%; respectively weigh lanthanum oxide, aluminum oxide, manganese carbonate, and iron oxide, grind and mix them, and pre-fire at 850 °C After 12 hours, it was taken out, and after grinding again, it was fired at 1400° C. for 5 hours.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap