Efficient enhanced specific rare earth photoluminescence anti-counterfeiting film and preparation method thereof
A photoluminescence and rare earth luminescence technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the difficulty of increasing the tunability of precious metal-type plasmons, the inability to achieve specific anti-counterfeiting identification, and the lack of centralized management of heat. and other problems, to achieve the effect of good thermal insulation, low luminous efficiency and excellent thermal stability.
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[0027] The following will give a clear and complete description of the technical solutions of the various embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, common in the art All other embodiments obtained by technicians without creative work fall within the protection scope of the present invention.
[0028] See figure 1 As shown, the present invention provides a highly efficient and enhanced specific rare earth photoluminescent anti-counterfeiting film, which includes a thermal insulation base layer 1, a plasmon enhancement layer 2, an optical isolation layer 3, an endothermic rare earth luminescent layer 4, and Insulation cover layer 5. The thermal insulation base layer 1 and the thermal insulation cover layer 5 contain high-transmittance thermal insulation materials, which are used for thermal function manage...
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