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Luminescent material

A technology of luminescent materials and luminescent powders, which can be used in luminescent materials, sustainable buildings, climate sustainability, etc., and can solve the problems of easy deliquescence, limited practical application, rare research reports, and low phonon energy.

Inactive Publication Date: 2013-04-03
QINGDAO SHENGJIA INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although, chlorides, olfactory compounds and iodides have lower phonon energy (less than 300 cm -1 ), or can output more efficient upconversion luminescence, but their deliquescent nature limits their practical application
Therefore, so far, there are few relevant research reports

Method used

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  • Luminescent material

Examples

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Embodiment Construction

[0005] According to the special growth mechanism of the product prepared by the uniform precipitation method, the present invention successfully prepared a well-dispersed Y of 40nln by shortening the aging time of the reaction 2 o 3 Nanoparticles. Typically, a certain amount of Y (N0 3 ) 3 , Yb(N0 3 ) 3 and Ho(N0 3 ) 3 The stock solution was then diluted to 800mL with water, and the concentration of the obtained solution was 0.02mol / L. Likewise, an equal volume of aqueous urea (6M) was prepared. The above solutions were mixed and heated to 83 ° C for 9 min. Subsequently, it was rapidly cooled to room temperature. After washing with water and ethanol three times, the obtained product was dried at 400° C. for 12 h. Finally, calcined at 800°C for 1h to obtain Y 2 0 3 :Yb 3+ , Ho 3+ Up-converting nanocrystals (Y-Y-H).

[0006] Preparation of silica / aminosilane-coated Y by PVP-assisted one-step ammoniation 2 0 3 :Yb 3+ , Ho 3+ Nanoparticles. A PVP-assisted one-s...

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Abstract

The invention provides a luminescent material. The luminescent material is silica / aminosilane coated Y2O3:Yb<3+>,Ho<3+> nano particle white light up-conversion luminescent powder.

Description

technical field [0001] The invention belongs to the field of luminescent materials, in particular to an up-conversion luminescent material. Background technique [0002] Up-conversion luminescent materials also have high requirements on the selection of host materials. Although by increasing the pump laser power, rare earth ions can achieve up-conversion luminescence in many materials, but because the luminescence intensity of the same activator ion in different host materials is very different, with a maximum difference of 8 orders of magnitude, so in order to obtain a true To meet the practical application of up-conversion luminescent materials, appropriate host materials must be selected. A large number of previous research results have shown that the ideal upconversion luminescent host material should have a lattice that matches the dopant ions. Y 3+ , La 3+ 、Gd 3+ 、Lu 3+ Due to the similar ionic radius and chemical characteristics to the above activator and sensit...

Claims

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Application Information

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IPC IPC(8): C09K11/78
CPCY02B20/181Y02B20/00
Inventor 曲志乾秦子玲唐小晨魏薇
Owner QINGDAO SHENGJIA INFORMATION TECH
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