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Luminescent zirconium-oxide-based rare earth up-conversion luminescent film material and preparation method thereof

A technology for converting luminescent and thin-film materials, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of high phonon energy and low up-conversion efficiency, and achieve the effects of easy proportional control, easy processing, and energy saving

Inactive Publication Date: 2012-03-28
SUN YAT SEN UNIV
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Problems solved by technology

However, the phonon energy of oxides is generally high, so the upconversion efficiency is relatively low

Method used

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  • Luminescent zirconium-oxide-based rare earth up-conversion luminescent film material and preparation method thereof
  • Luminescent zirconium-oxide-based rare earth up-conversion luminescent film material and preparation method thereof
  • Luminescent zirconium-oxide-based rare earth up-conversion luminescent film material and preparation method thereof

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Experimental program
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Embodiment Construction

[0026] (1) Preparation of precursor sol: analytically pure zirconium oxychloride (ZrOCl 2 .8H 2 O) Dissolve in methanol according to the ratio of zirconium oxychloride: methanol = 9.7g: 100 mL, stir evenly, and then add 4.50 g of acetylacetone. 6.07 g of triethylamine was slowly added dropwise in an ice bath, keeping the temperature below 5°C. The molar ratio is zirconium oxychloride: acetylacetone: triethylamine=1:1.5:2. After the dropwise addition, the ice bath was removed, and stirring was continued at room temperature for 2 h to generate a golden yellow transparent solution. Evaporate the solvent methanol to dryness to obtain a light yellow sticky substance, add 50 mL tetrahydrofuran, stir vigorously for 1 h to dissolve the soluble matter, remove the insoluble white precipitate of triethylamine hydrochloride by suction filtration, and evaporate the golden yellow transparent filtrate The tetrahydrofuran was desolvated until a pale yellow crust was obtained. Then add 70...

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Abstract

The invention discloses a zirconium-oxide-based rare earth up-conversion luminescent film material and a preparation method of the material. A zirconium oxide film prepared by a sol-gel method is taken as a host material, and a high-efficiency up-conversion luminescent film material is obtained due to the co-doping of sensitizing agent and up-conversion luminescent center. The used host material is high in chemical stability, heat stability and optical transparency, wider in forbidden band width, and lower in phonon energy. The proportion among rare earth ions can be easily regulated and controlled by doping the solution, so that the up-conversion luminescent waveband can be conveniently adjusted. A precursor body sol is good in stability, and can be stored for a long time and repeatedly used when the material is prepared. Meanwhile, the obtained film material is easy to prepare, is easy to be combined with a device, and is good for the device application.

Description

[0001] technical field [0002] The invention relates to a zirconia-based rare earth up-conversion luminescent film material and a preparation method thereof. Background technique [0003] The phenomenon of frequency upconversion luminescence under laser pumping has been paid attention to since its discovery. Upconversion luminescent materials have broad application prospects in many aspects such as laser technology, optical fiber communication technology, fiber amplifier, display technology and anti-counterfeiting technology. In recent years, rare earth-doped up-conversion luminescent materials can emit visible light with a wavelength much shorter than the excitation light when excited in the infrared region, and have unique advantages in applications such as display luminescence and biological detection, which has attracted people's attention. Widespread concern. An important content of rare earth-doped frequency upconversion luminescence research is how to improve the ...

Claims

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Application Information

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IPC IPC(8): C09K11/78
Inventor 潘梅苏成勇王海平王子严诚魏世超李康曾敏茹
Owner SUN YAT SEN UNIV
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