Application of yttrium ions in enhancing ultraviolet emission intensity of ZnO nanomaterial

A technology of nanomaterials and emission intensity, applied in luminescent materials, chemical instruments and methods, etc., to achieve the effects of simple operation, low temperature and easy reaction

Inactive Publication Date: 2015-05-20
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Research in the prior art shows that the photoluminescence of Ce-doped ZnO is red-shifted, and the photoluminescence of Er-doped ZnO thin films is blue-shifted

Method used

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  • Application of yttrium ions in enhancing ultraviolet emission intensity of ZnO nanomaterial
  • Application of yttrium ions in enhancing ultraviolet emission intensity of ZnO nanomaterial
  • Application of yttrium ions in enhancing ultraviolet emission intensity of ZnO nanomaterial

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Embodiment 1

[0031] The preparation method of the zinc oxide nanomaterial of the present embodiment comprises:

[0032] Step 1: Prepare respectively a zinc nitrate solution with a molar concentration of 0.1mol / L, a yttrium nitrate solution with a molar concentration of 0.1mol / L, and a citric acid solution with a molar concentration of 0.3mol / L, and magnetically stir the three solutions for 30 minutes respectively , to fully dissolve the reactants;

[0033] Step 2: Measure 60 mL of zinc nitrate solution with a molar concentration of 0.1 mol / L and 60 mL of a citric acid solution with a molar concentration of 0.3 mol / L for mixing; the doping concentration of yttrium ions is 0% molar concentration;

[0034] Step 3: Magnetically stir the solution mixed in step 2 for 3 hours to form a sol, put the sol in an oven at 80°C and keep it warm for 12 hours to form a xerogel, then put the xerogel in an oven at 130°C Medium heat preservation for 5 hours to make it dehydrated and puffed;

[0035] Step 4...

Embodiment 2

[0037] This embodiment is different from Example 1 in that: 59.4 mL of zinc nitrate solution with a molar concentration of 0.1 mol / L, 0.6 mL of yttrium nitrate solution with a molar concentration of 0.1 mol / L and 59.4 mL of a molar concentration of 0.3 mol / L were measured respectively. L citric acid solution was mixed; the particle size of the zinc oxide nanomaterial obtained in this embodiment was 40-60 nm, and the doping concentration of yttrium ions in this embodiment was 1% molar concentration.

Embodiment 3

[0039]The difference between this embodiment and Example 1 is that: 58.2 mL of zinc nitrate solution with a molar concentration of 0.1 mol / L, 1.8 mL of yttrium nitrate solution with a molar concentration of 0.1 mol / L, and 58.2 mL of a yttrium nitrate solution with a molar concentration of 0.3 mol / L were measured respectively. L citric acid solution was mixed; the particle size of the zinc oxide nanomaterial obtained in this embodiment was 40-60 nm, and the doping concentration of yttrium ions in this embodiment was 3% molar concentration.

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Abstract

The invention relates to an application of yttrium ions in enhancing the ultraviolet emission intensity of a ZnO nanomaterial. Yttrium ions different in concentration are mixed in the ZnO nanomaterial through a sol-gel method; with the increasing yttrium doping concentration, the ultraviolet emission intensity of zinc oxide is enhanced while the emission intensity on a deep energy level is basically kept unchanged; when the doping concentration reaches a saturation concentration, the yttrium-doped zinc oxide has the highest ultraviolet emission intensity; and when the doping concentration exceeds the saturation concentration, the ultraviolet emission intensity of the yttrium-doped zinc oxide is reduced along with the increase of the doping concentration, thereby indicating that the zinc oxide nanomaterial doped at the saturation concentration of yttrium has the best ultraviolet emission intensity. Calculated through an X-ray diffraction spectrum, the best saturation concentration of the yttrium-doped zinc oxide is 6.12%.

Description

technical field [0001] The invention belongs to the field of semiconductor materials, and in particular relates to the application of yttrium ions to enhance the ultraviolet emission intensity of ZnO nanometer materials. Background technique [0002] The information industry is gradually entering the era of optoelectronics and photons from the era of microelectronics. Among them, optoelectronic materials are the foundation of the optoelectronic industry. Among optoelectronic materials, wide bandgap semiconductors are widely used in short-wavelength light-emitting devices, submarine optical communications, photocatalysis, and high-density storage. Wide bandgap semiconductor materials such as ZnSe and GaN have been active at the forefront in recent years. Recently, another wide-bandgap semiconductor material, zinc oxide (ZnO), has also attracted people's attention. [0003] As a new type of third-generation semiconductor material, ZnO is an important II-VI semiconductor oxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/54
Inventor 郑佳红牛世峰郑若瑶
Owner CHANGAN UNIV
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