Cr<3+>-doped zinc gallate near-infrared long-afterglow luminescent nanoparticles and preparation method
A nanoparticle, zinc gallate technology, applied in luminescent materials, luminescent coatings, chemical instruments and methods, etc., can solve the problems affecting the application of near-infrared long afterglow luminescent nanomaterials, serious agglomeration of long afterglow nanoparticles, and complicated preparation steps. , to achieve the effect of easy large-scale promotion and use, low cost of raw materials, and low reaction temperature
Inactive Publication Date: 2017-02-22
SHANDONG UNIV
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Abstract
The invention discloses Cr<3+>-doped zinc gallate near-infrared long-afterglow luminescent nanoparticles and a preparation method. The nanoparticles have the atom composition of ZnGaxCryO4, wherein x is in a range of 1.98-2.00, and y is in a range of 0.001-0.02; the particle size is 50-100 nm, 2E-to-4A2 broadband transmission of Cr<3+> is generated, the broadband transmission peak ranges from 600 nm to 850 nm, and the peak value is located at 690-715 nm. The prepared long-afterglow luminescent material has the good properties that the particle size is small, the transmission range is located in a near-infrared light zone, and the afterglow time is long. In the preparation method, the cost of raw materials is low, the method is simple and easy to implement, the reaction temperature is low, requirements for equipment are low, no byproducts are produced and large-scale popularization and utilization are facilitated.
Application Domain
Powder deliveryLuminescent paints +3
Technology Topic
GalliumAfterglow +8
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Classification and recommendation of technical efficacy words
- long afterglow
- Small particle size