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Manganese doped cerium antimonate light-emitting material, preparation method and application of material

A technology of luminescent materials and manganese doping, applied in luminescent materials, chemical instruments and methods, electrical components, etc.

Inactive Publication Date: 2017-05-10
郑甘裕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still no report on the use of cerium antimonate to prepare thin film electroluminescent materials.

Method used

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  • Manganese doped cerium antimonate light-emitting material, preparation method and application of material
  • Manganese doped cerium antimonate light-emitting material, preparation method and application of material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Select the powder with a purity of 99.99%, mix 1mmol of CeO 2 , 2.5mmol of Sb 2 o 5 ,0.03mmol of MnO 2 , after uniform mixing, sintering at 1250° C. for 3 hours to form a ceramic target with a diameter of 50 mm and a thickness of 2 mm, and the target was loaded into a vacuum chamber. Then, the glass substrate with indium tin oxide (ITO) was ultrasonically cleaned with acetone, absolute ethanol and deionized water successively, treated with oxygen plasma, and placed in a vacuum chamber. The distance between the target and the substrate 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 argon is 25 sccm, the pressure is adjusted to 2.0 Pa, and the substrate temperature is 500°C. The obtained samples were annealed in a 0.01 Pa vacuum furnace for 2 h at a temperature of 600 °C. Then a layer of Ag is vapor-deposited on the luminescent film as the cathode.

[0047] The general chemic...

Embodiment 2

[0050] Use powder with a purity of 99.99%, 1mmol of CeO 2 , 2.5mmol of Sb 2 o 5 ,0.08mmol of MnO 2 , after uniform mixing, sintering at 900°C to form a ceramic target with a diameter of 50mm and a thickness of 2mm, and put the target into a vacuum chamber. Then, the glass substrate with ITO was ultrasonically cleaned with acetone, absolute ethanol and deionized water successively, treated with oxygen plasma, and placed in a vacuum chamber. The distance between the target and the substrate was 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 argon is 10 sccm, the pressure is adjusted to 0.2 Pa, and the substrate temperature is 250°C. The obtained samples were annealed in a 0.01 Pa vacuum furnace for 1 h at an annealing temperature of 500 °C. Then a layer of Ag is vapor-deposited on the luminescent film as the cathode.

[0051] The general chemical formula of the manganese-doped cer...

Embodiment 3

[0053] Use powder with a purity of 99.99%, 1mmol of CeO 2 , 2.5mmol of Sb 2 o 5 ,0.08mmol of MnO 2 , after being uniformly mixed, sintered at 1300°C to form a ceramic target with a diameter of 50mm and a thickness of 2mm, and put the target into a vacuum chamber. Then, the glass substrate with ITO was ultrasonically cleaned with acetone, absolute ethanol and deionized water successively, treated with oxygen plasma, and placed in a vacuum chamber. The distance between the target and the substrate is set to 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 argon is 35 sccm, the pressure is adjusted to 4.0 Pa, and the substrate temperature is 750°C. The obtained samples were annealed in a 0.01Pa vacuum furnace for 3h at an annealing temperature of 800°C. Then a layer of Ag is vapor-deposited on the luminescent film as the cathode.

[0054] The general chemical formula of the manganese-doped ...

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Abstract

The invention provides a manganese doped cerium antimonate light-emitting material with the chemical formula of CeSb5O14:xMn4+, wherein 0.01<=x<=0.08. An electroluminescent (EL) spectrum of a light-emitting thin film prepared from the manganese doped cerium antimonate light-emitting material has strong light-emitting peaks in a 520nm wavelength area, and good green light to blue light excitation can be achieved. The invention further provides a preparation method of the manganese doped cerium antimonate light-emitting material, a manganese doped cerium antimonate light-emitting thin film, a preparation method thereof and a thin film electroluminescent device.

Description

[0001] 【Technical field】 [0002] The invention relates to a manganese-doped cerium antimonate luminescent material, a preparation method thereof, a manganese-doped cerium antimonate luminescent film, a preparation method thereof and a thin-film electroluminescent device. [0003] 【Background technique】 [0004] 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. [0005] In the research of LED phosphors, cerium antimonate is a kind of green luminescent powder with stable matrix crystal structure and good chemical stability that can be used for near-ultraviolet excitation, and its excitation spectrum can better match the emission of existing near-ultraviolet LEDs. The spectrum is capable of good red to blue excitation. However, it has not been reported th...

Claims

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Application Information

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IPC IPC(8): C09K11/78H01L33/50
CPCC09K11/7716H01L33/502H01L2933/0041
Inventor 郑甘裕
Owner 郑甘裕
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