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Oxide Powder

Strontium Aluminate Doped Europium Dysprosium Phosphor

MF:SrAl2O4:Eu ,Dy
CAS: 12004-37-4
Appearance:Light yellow powder
Particle size(D50):25-35μm
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Description

Product name: strontium aluminate doped europium dysprosium phosphor
Main components: strontium aluminate>96%, europium oxide<2%, dysprosium oxide<2%

 


Strontium Aluminate Doped Europium Dysprosium Phosphor


What is Strontium Aluminate Doped Europium Dysprosium Phosphor ?
Crystal structure
The strontium aluminate doped europium dysprosium phosphor belongs to the orthomorphic system with the crystal structure of Pnma and the space group of No. 62. In the crystal structure, each Eu3+ and Dy3+ ion is surrounded by eight Al3+ ions, which can effectively reduce the quenching degree of ion on the activator and improve the fluorescence lifetime and quantum efficiency.
Optical property
The strontium aluminate doped europium dysprosium phosphor has high luminosity and can produce stable red and green luminescence at room temperature. At the same time, by adjusting the doping concentration of Eu3+ and Dy3+, the color and brightness of the luminous can be adjusted to achieve the tunability of the luminous color. In addition, the material has a low vapor pressure and good thermal stability and can be operated at high temperatures.
Chemical stability
The strontium aluminate doped europium dysprosium phosphor has good chemical stability and can be stored in the air for a long time without oxidizing. In addition, the material also has high acid, alkaline, and water resistance, which can be used in harsh environments.
Physical property
Strontium aluminate doped europium dysprosium phosphor has good physical properties, high crystal density, and high refractive index and can be used as optical materials. In addition, the material also has a low dielectric constant and a high resistivity and can be used as an insulating material.

 

Product application field:
Display
Strontium aluminate doped europium dysprosium phosphor has high brightness and stability and can be used as an efficient luminescent material for displays. In the field of full-color displays, the material can be used to achieve the emission of red and green pixels, improving the color brightness and contrast of the display. In addition, in the field of flexible displays, strontium aluminate doped europium dysprosium phosphor can also be used as luminous materials to achieve display functions in different forms.
Bioimaging
Strontium aluminate doped europium dysprosium phosphor has a long luminous life and can be used as bioimaging markers. Vivo, the material can emit stable, long-term fluorescence for biological imaging. At the same time, because of its good biocompatibility, it can be applied to biological in vivo experiments, in vitro cell experiments, and other biomedical fields.
Laser
Strontium aluminate doped europium dysprosium phosphor has good optical properties and can be used as the working material of a laser. In a laser, the material can absorb the energy of the pump light and then release a laser with a certain wavelength. Due to its high fluorescence lifetime and quantum efficiency, high laser output power and brightness can be obtained.
Photoelectric device
As an optically active material, strontium aluminate doped europium dysprosium phosphor can manufacture photoelectric devices, such as photodiodes and phototransistors. These optoelectronic devices can be used in optical signal detection and optical communication.
Optical storage
Strontium aluminate doped europium dysprosium phosphor can be used as an optical storage medium to achieve high-density storage and long-term preservation of information. In optical storage, the material can be used to record and read information, and its high brightness, high stability, and tunable luminous color can fulfill storage needs in different fields.
Solar cell
Strontium aluminate doped europium dysprosium phosphor can be used as the photoelectric conversion material of solar cells to improve the photoelectric conversion efficiency and stability of solar cells. In solar cells, the material can absorb sunlight and release photoelectrons to achieve the purpose of photoelectric conversion.
Environmental monitoring
The luminescence properties of strontium aluminate doped europium dysprosium phosphor can be used in environmental monitoring. For example, the material can be used in water to detect and analyze harmful substances and organic pollutants, etc., to help environmental protection and governance.


Technical data of Strontium Aluminate:

Name Europium dysprosium doped strontium aluminate CAS 12004-37-4
Molecular formula

SrAl2O4:Eu,Dy

PH 10-12
Appearance Light yellow powder Luminous color Yellowish green
Density 3.4g/cm3 Particle size(D50) 25-35μm
Excitation wavelength 240-440nm Luminous wavelength 520nm
Luminous brightness:>350 cd/m2 for 10 minutes; >45cd/m2 for 60 minutes
Test conditions: D65 standard light source is excited for 10 minutes at 23 ℃

 

Usage and precautions of Strontium Aluminate
1. This product has a large proportion and needs to be mixed well before use.
2. It shall be stored in a dry and windproof environment, and shall be protected from moisture. Luminous pigments that cannot be used at one time shall be sealed and stored.
3. Metal materials have a great influence on the luminous performance of this product, and grinding of metal materials should be avoided as far as possible.

 

Packaging and storage of Strontium Aluminate
1. Product packaging: plastic bottle.
2. Transportation: prevent collision, extrusion and exposure to the sun and rain during transportation.
3. Storage: It shall be stored in a dry environment away from wind and moisture.

 

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

FAQs of Strontium Aluminate:
Q: What are the advantages of europium-doped dysprosium strontium aluminate phosphors over other types of phosphors?
A: Able to maintain the luminous effect for a longer period of time, usually lasts for a few hours to more than a dozen hours. High initial luminous intensity and slow decay over time, ensuring a good visual effect. Insensitive to temperature, humidity and other factors, suitable for use in a variety of harsh environments.
 
Q: How to properly store and handle europium-doped dysprosium strontium aluminate phosphors to ensure optimal performance?
A: It should be stored in a cool and dry place, avoiding direct exposure to strong light, especially ultraviolet light, in order to prevent early activation of luminescent properties. Use sealed containers for storage to prevent the intrusion of moisture, as moisture will affect its luminous efficiency and lifetime. Keep away from high temperature environment, because too high temperature may lead to changes in the crystal structure and thus affect the luminescence performance.
 
Q: What is the luminescence principle of europium-doped dysprosium strontium aluminate phosphor?
A: When a material is irradiated by an external light source, certain electrons in the matrix are excited to higher energy states. These excited electrons will transfer energy to the dopant ions (e.g., europium ions Eu²⁺), causing them to enter the excited state as well. Subsequently, some of the energy will be dissipated, e.g., in the form of heat, while the other part remains in the activation center.
 
Q: What are the R&D trends and future directions for europium-doped dysprosium strontium aluminate phosphors?
A: Research on new synthesis methods and technologies to further enhance the luminescence intensity and afterglow time of materials. Explore different combinations of doping elements to achieve more diverse luminescent colors to meet the needs of different application scenarios. Improve the weather resistance and chemical stability of the materials so that they can work stably in a wider range of temperatures and harsh environments.
 

 

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