Composite material for enhancing photoluminescence of rare earth Er ions and preparation method thereof

A technology of photoluminescence and composite materials, which is applied in the field of material science/optics, can solve the problems of weak photoluminescence performance, and achieve the effects of enhanced photoluminescence, high efficiency, and improved luminous intensity

Active Publication Date: 2016-12-07
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology involves making special materials that control how much fluorescent radiation occurs when excited from certain types of atoms called erbium (Eu) ion(s). These new compositions have improved luminosity compared to existing methods for creating these mixtures or cerams made through other techniques such as chemical vapor deposition. They also make it easier to manufacture them at reduced costs than current options like zinc oxide. Overall, this innovative technique allows researchers to study various aspects related to quantum mechanisms involving rare earth elements.

Problems solved by technology

Technological Problem: In this patented technical problem addressed in the patents relates to enhancing the performance (luminous property) of rare-Eu ion(RE), especially for use in ceramics or glasses made from these compounds due to their ability to change its color when exposed to light at different wavelength ranges.

Method used

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  • Composite material for enhancing photoluminescence of rare earth Er ions and preparation method thereof
  • Composite material for enhancing photoluminescence of rare earth Er ions and preparation method thereof
  • Composite material for enhancing photoluminescence of rare earth Er ions and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Example 1: Mix xEr:BNTBT (x=0.0050, 0.0075,0.0100) powder and ZnO (y=0.1) powder evenly and press into tablets, and after sintering at 1150 degrees Celsius for 90 minutes, xEr:BNTBT / yZnO composite ceramics are obtained; The luminescent properties of the above samples were measured under laser excitation.

Embodiment 2

[0018] Example 2: Mix xEr:BNTBT (x=0.0050, 0.0075,0.0100) powder and ZnO (y=0.2) powder evenly and press into tablets, and after sintering at 1050 degrees Celsius for 90 minutes, xEr:BNTBT / yZnO composite ceramics are obtained; The luminescent properties of the above samples were measured under laser excitation.

Embodiment 3

[0019] Example 3: Mix xEr:BNTBT (x=0.0050, 0.0075,0.010) powder and ZnO (y=0.3) powder evenly and press into tablets, and after sintering at 1000 degrees Celsius for 60 minutes, xEr:BNTBT / yZnO composite ceramics are obtained; The luminescent properties of the above samples were measured under laser excitation.

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Abstract

The invention discloses a composite material for enhancing the photoluminescence of rare earth Er ions and a preparation method thereof. The composite material comprises an Er doped ferroelectric material and ZnO. The chemical formula of the Er doped ferroelectric material is xEr:0.94Bi<0.5>Na<0.5>TiO<3-0.06>BaTiO<3> (xEr:BNTBT for short), wherein x is the mole ratio of Er to BNTBT and is 0.0050, 0.0075, or 0.0100; and the mole ratio of ZnO to the Er doped ferroelectric material is 0.1, 0.2, 0.3, or 0.4. By doping rare earth Er ions into a ferroelectric material and further forming a composite material from the Er ion doped ferroelectric material and ZnO, the prominently enhanced photoluminescence of Er ions can be observed under the laser irradiation. Compared with other conventional methods, the provided composite material can prominently enhance the photoluminescence of rare earth Er ions.

Description

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Claims

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Application Information

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Owner NANJING UNIV
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