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Antimony/terbium-codoped plumbite antimonate luminescent material, and preparation method and application thereof

A luminescent material, lead antimonate technology, applied in luminescent materials, chemical instruments and methods, semiconductor devices, etc., can solve problems such as unfavorable preparation of luminescent materials, uncontrollable ratio of phosphate and rare earth elements, insufficient thermal stability, etc. , to achieve good thermal and chemical stability, easy growth orientation, and good processing performance

Inactive Publication Date: 2015-06-03
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the thermal stability of the material itself is not good enough, and the preparation of the material is carried out under high temperature conditions, phosphorus oxide will be evaporated during the preparation process, resulting in the ratio of phosphate and rare earth elements. Control, not conducive to the preparation of luminescent materials

Method used

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  • Antimony/terbium-codoped plumbite antimonate luminescent material, and preparation method and application thereof
  • Antimony/terbium-codoped plumbite antimonate luminescent material, and preparation method and application thereof
  • Antimony/terbium-codoped plumbite antimonate luminescent material, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A method for preparing a thin film electroluminescent device, comprising the steps of:

[0039] (1) First, weigh MgO and PbO respectively according to the molar ratio of 1:3.94:3:0.02:0.01 2 , Sb 2 o 5 , SbO 2 and Tb 4 o 7 powder, and these powders are evenly mixed and sintered at 1250°C to make a ceramic target with a diameter of 50mm and a thickness of 2mm; and then put the prepared ceramic target into the vacuum chamber of the pulse laser deposition coating equipment in vivo;

[0040] (2) Ultrasonic cleaning the glass substrate with ITO transparent conductive film with acetone, absolute ethanol and deionized water respectively, and performing oxygen plasma treatment on it; then put the cleaned ITO glass substrate into the pulse laser deposition coating equipment In the vacuum chamber, and the vacuum degree of the vacuum chamber is pumped to 5.0×10 with a mechanical pump and a molecular pump -4 Pa;

[0041] (3) Adjust the pulse laser deposition and coating pro...

Embodiment 2

[0047] A method for preparing a thin film electroluminescent device, comprising the steps of:

[0048] (1) First, weigh MgO and PbO respectively according to the molar ratio of 1:3.91:3:0.01:0.02 2 , Sb 2 o 5 , SbO 2 and Tb 4 o 7 powder, and these powders are evenly mixed and sintered at 900°C to make a ceramic target with a diameter of 50mm and a thickness of 2mm; and then put the prepared ceramic target into the vacuum chamber of the pulse laser deposition coating equipment in vivo;

[0049] (2) Ultrasonic cleaning the glass substrate with ITO transparent conductive film with acetone, absolute ethanol and deionized water respectively, and performing oxygen plasma treatment on it; then put the cleaned ITO glass substrate into the pulse laser deposition coating equipment In the vacuum chamber, and use a mechanical pump and a molecular pump to pump the vacuum chamber to 1.0×10 -3 Pa;

[0050] (3) Adjust the pulse laser deposition and coating process parameters to prepar...

Embodiment 3

[0054] A method for preparing a thin film electroluminescent device, comprising the steps of:

[0055] (1) First, weigh MgO and PbO respectively according to the molar ratio of 1:3.94:3:0.05:0.0025 2 , Sb 2 o 5 , SbO 2 and Tb 4 o 7 powder, and these powders are evenly mixed and sintered at 1300°C to make a ceramic target with a diameter of 50mm and a thickness of 2mm; then put the prepared ceramic target into the vacuum chamber of the pulse laser deposition coating equipment in vivo;

[0056] (2) Ultrasonic cleaning the glass substrate with ITO transparent conductive film with acetone, absolute ethanol and deionized water respectively, and performing oxygen plasma treatment on it; then put the cleaned ITO glass substrate into the pulse laser deposition coating equipment In the vacuum chamber, and use a mechanical pump and a molecular pump to pump the vacuum chamber to 1.0×10 -5 Pa;

[0057] (3) Adjust the pulse laser deposition and coating process parameters to prepare...

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Abstract

The invention discloses an antimony / terbium-codoped plumbite antimonate luminescent material of which the molecular expression is RPb[4-x-y]Sb6O24:xSb<3+>,yTb<3+>, wherein RPb[4-x-y]Sb6O24 is the matrix, Sb<3+> and Tb<3+> are active elements, R is Mg, Ca, Ba or Sr, x is 0.01-0.05, and y is 0.01-0.08. The luminescent material matrix plumbite antimonate has the advantages of favorable heat stability, favorable chemical stability and favorable processability. The active elements antimony and terbium are doped in the plumbite antimonate matrix as the main luminescent center, so that the obtained luminescent material has strong light-emitting peaks at 490nm and 580nm in the electroluminescent spectrum (EL). The invention also discloses a preparation method of the antimony / terbium-codoped plumbite antimonate luminescent material and application of the antimony / terbium-codoped plumbite antimonate luminescent material in film electroluminescent devices.

Description

technical field [0001] The invention relates to the technical field of semiconductor optoelectronic materials, in particular to a terbium antimony co-doped lead antimonate luminescent material, a preparation method thereof, a thin film electroluminescent device using the luminescent material and a preparation method thereof. Background technique [0002] Thin film electroluminescent display (TFELD) has attracted widespread attention and developed rapidly due to its advantages such as active light emission, full solid state, impact resistance, fast response, large viewing angle, wide application temperature, and simple process. At present, research on color and full-color thin-film electroluminescence display (TFELD) and development of multi-band luminescent materials are the development direction of this subject. [0003] Boroaluminophosphate system green powder is favored by researchers because of its moderate synthesis temperature, high luminous brightness, and large color...

Claims

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Application Information

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IPC IPC(8): C09K11/75H01L33/50
Inventor 周明杰陈吉星王平张娟娟
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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