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Titanium-manganese codoped yttrium oxide light-emitting film and preparation method thereof, and electroluminescence device

A technology for electroluminescent devices and light-emitting films, which are used in chemical instruments and methods, light-emitting materials, electrical components, etc.

Inactive Publication Date: 2014-05-28
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, there are still very few reports on the use of such materials to make luminescent films.

Method used

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  • Titanium-manganese codoped yttrium oxide light-emitting film and preparation method thereof, and electroluminescence device
  • Titanium-manganese codoped yttrium oxide light-emitting film and preparation method thereof, and electroluminescence device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Choose TiO 2 , MnO 2 , Y 2 o 3 The molar weights of the powders are: 0.04mmol, 0.08mmol and 0.94mmol respectively. After the powders are evenly mixed, they are sintered at 1250°C for 3 hours, and after cooling, they are cut into Φ50×2mm ceramic targets, and the ceramic The target is put into the vacuum chamber of the coating equipment. Then, the glass with ITO was ultrasonically cleaned with acetone, absolute ethanol and deionized water successively, and treated with oxygen plasma, and placed in a vacuum chamber. The distance between the ceramic target and the ITO glass is set to 60mm. Use a mechanical pump and a molecular pump to pump the vacuum of the cavity to 5.0×10 -4 Pa, the working gas flow rate of oxygen is 20sccm, the working pressure is adjusted to 3Pa, the temperature of ITO glass is 500°C, the laser energy is 150W, and then the film forming process is carried out. After the completion, a titanium-manganese co-doped yttrium oxide luminescent film is obta...

Embodiment 2

[0027] Choose TiO 2 , MnO 2 , Y 2 o 3 The molar weights of the powders are: 0.02mmol, 0.02, and 0.98mmol respectively. After the powders are uniformly mixed, they are sintered at 900°C for 0.5h. After cooling, they are cut into Φ50×2mm ceramic targets, and the ceramic The target material is loaded into the vacuum chamber of the coating equipment. Then, the glass with ITO was ultrasonically cleaned with acetone, absolute ethanol and deionized water successively, and treated with oxygen plasma, and placed in a vacuum chamber. The distance between the ceramic target and the ITO glass is set to 45mm. Use a mechanical pump and a molecular pump to evacuate the vacuum of the chamber to 1.0×10 -3 Pa, the working gas flow rate of oxygen is 10sccm, the working pressure is adjusted to 0.5Pa, the temperature of ITO glass is 250°C, the laser energy is 80W, and then the film making process is carried out. For: Y 2 o 3 :0.01Ti 4+ ,0.01Mn 4+ .

Embodiment 3

[0029] Choose TiO 2 , MnO 2 , Y 2 o 3 The molar weights of the powders are: 0.08mmol, 0.16mmol, and 0.88mmol respectively. After the powders are uniformly mixed, they are sintered at 1300°C for 5 hours, and after cooling, they are cut into Φ50×2mm ceramic targets, and the ceramic The target material is loaded into the vacuum chamber of the coating equipment. Then, the glass with ITO was ultrasonically cleaned with acetone, absolute ethanol and deionized water successively, and treated with oxygen plasma, and placed in a vacuum chamber. Set the distance between the ceramic target and the ITO glass as 95mm. Use a mechanical pump and a molecular pump to evacuate the vacuum of the chamber to 1.0×10 -5 Pa, the working gas flow rate of oxygen is 40sccm, the working pressure is adjusted to 5Pa, the temperature of ITO glass is 750°C, and the laser energy is 300W, and then the film forming process is carried out. : Y 2 o 3 : 0.04Ti 4+ ,0.08Mn 4+ .

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Abstract

The invention belongs to the field of light-emitting films, and discloses a titanium-manganese codoped yttrium oxide light-emitting film and a preparation method thereof, and an electroluminescence device. The light-emitting film has the molecular formula as follows: Y2O3:xTi<4+>, yMn<4+>, wherein Y2O3 is a matrix; Ti<4+> and Mn<4+> are activated ions and are used as a light-emitting center in the film; the value of x ranges from 0.01 to 0.05; the value of y ranges from 0.01 to 0.08. The titanium-manganese codoped yttrium oxide light-emitting film disclosed by the invention has a strong light-emitting peak at the position of 430 nm in an electroluminescence spectrum (EL).

Description

technical field [0001] The invention relates to the field of luminescent thin films, in particular to a titanium-manganese co-doped yttrium oxide luminescent thin film and a preparation method thereof. The present invention also relates to an electroluminescent light-emitting device, the light-emitting layer of the device is made of titanium-manganese co-doped yttrium oxide light-emitting thin film. 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. [0003] Chloroborate-based luminescent materials are popular research materials for LED phosphors. UV-excited blue phosphor Sr 2-x-y B 5 o 9 Cl:xEu 2+ ,yTb 3+ It can already be used as a commercial product, and it is constantly improving and developing. However, reports...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/78H01L33/50
Inventor 周明杰王平陈吉星黄辉
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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