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Red-light niobium zincate luminescent material, preparation method therefor and application of red-light niobium zincate luminescent material

A technology of luminescent material and zincate, applied in the field of red light niobate zincate luminescent material

Inactive Publication Date: 2016-11-16
郑甘裕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, red light niobium zincate luminescent materials that can be applied to thin film electroluminescent displays have not been reported yet.

Method used

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  • Red-light niobium zincate luminescent material, preparation method therefor and application of red-light niobium zincate luminescent material
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Examples

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preparation example Construction

[0029] The preparation method of the above-mentioned red light niobium zincate luminescent material comprises the following steps:

[0030] Step S11, according to Me 3-x ZnNb 2 o 9 :xPr 3++ The stoichiometric ratio of each element is weighed, wherein x is 0.01-0.05, y is 0.01-0.08, and Me is at least one selected from calcium element, strontium element and barium element.

[0031] Step S12, organic source selects cyclopentadiene alkaline earth salt (C 5 h 5 ) 2 Me, diethylzinc DEZn, niobium pentaethoxide Nb(OC 2 h 5 ) 5 and tetramethylheptadione praseodymium Pr(DPM) 3 , the molar ratio is (3-x):1:2:x, and the vacuum degree of the chamber is pumped to 1.0×10 with a mechanical pump and a molecular pump -2 Pa~1.0×10 -3Pa, the substrate is heat-treated at 700°C for 10-30 minutes, the rotation speed of the substrate holder is adjusted to 50-1000 rpm, and the carrier gas Ar gas is introduced at a flow rate of 5-15 sccm, and then oxygen is introduced at a flow rate of 10-1...

Embodiment 1

[0045] Example 1: The substrate is ITO glass purchased by CSG, and it is ultrasonically cleaned with toluene, acetone and ethanol for 5 minutes, then rinsed with distilled water, air-dried with nitrogen, and sent to the reaction chamber of the equipment. Use a mechanical pump and a molecular pump to evacuate the chamber to a vacuum of 4.0×10-3Pa; then heat-treat the substrate at 700°C for 20 minutes, and then lower the temperature to 500°C. Turn on the rotating motor, adjust the rotating speed of the substrate holder to 300 rpm, and feed cyclopentadiene calcium (C5H5) 2Ca, diethyl zinc DEZn, pentaethoxide niobium Nb (OC2H5) 5 and tetramethylheptadione praseodymium The carrier gas Ar gas of Pr(DPM)3 has a flow rate of 10 sccm. Oxygen gas was introduced with a flow rate of 120 sccm to start the deposition of the film. The thickness of the film is deposited to 150nm, close the organic source and carrier gas, continue to pass oxygen, the temperature drops below 100°C, and take ou...

Embodiment 2

[0046] Example 2: The substrate is ITO glass purchased by CSG, which is ultrasonically cleaned with toluene, acetone and ethanol for 5 minutes, then rinsed with distilled water, air-dried with nitrogen, and sent to the reaction chamber of the equipment. Use a mechanical pump and a molecular pump to evacuate the chamber to a vacuum of 1.0×10-3Pa; then heat-treat the substrate at 700°C for 10 minutes, and then lower the temperature to 250°C. Turn on the rotating motor, adjust the rotating speed of the substrate holder to 50 rpm, and feed cyclopentadiene calcium (C5H5) 2Ca, diethyl zinc DEZn, pentaethoxide niobium Nb (OC2H5) 5 and tetramethylheptadione praseodymium The carrier gas Ar gas of Pr(DPM) 3 is fed with oxygen, and the flow rate is 10 sccm, and the deposition of the thin film is started. The thickness of the film is deposited to 80nm, close the organic source and carrier gas, continue to pass oxygen, the temperature drops below 100°C, and take out the sample Ca2.92ZnNb2O...

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Abstract

The invention relates to a red-light niobium zincate luminescent material. A chemical formula of the red-light niobium zincate luminescent material is Me(3-x)ZnNb2O9:xPr<3+>, wherein x is 0.01 to 0.08, Me is at least one selected from calcium, strontium and barium, and Pr<3+> is an activating element. In an electroluminescent (EL) spectrum of a luminescent thin film made from the red-light niobium zincate luminescent material, luminescent peaks in the wavelength region of 611nm are very strong, so that the red-light niobium zincate luminescent material can be applied to a thin-film electroluminescent display. The invention further provides a preparation method for the red-light niobium zincate luminescent material and an application of the red-light niobium zincate luminescent material.

Description

【Technical field】 [0001] The invention relates to a red light niobium zincate luminescent material, a preparation method thereof, a red light niobium zincate luminescent film, a preparation method thereof, a thin film electroluminescent device 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, the research on color and even full-color TFELD and the development of multi-band luminescent materials are the development direction of this subject. However, the red light niobium zincate luminescent material that can be applied to thin film electroluminescent displays has not been reported yet. 【Content of invention】 [0003] Based on this, it is necessary to provide a red light n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/67H01L33/50H01L33/26
CPCC09K11/7703H01L33/26H01L33/502
Inventor 郑甘裕
Owner 郑甘裕
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