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Preparation method of zinc aluminum silicate glass codoped with zinc oxide nanocrystals and rare-earth ions

A technology of zinc oxide nanocrystals and silicate glass, which is applied in the field of preparation of zinc oxide nanocrystals and rare earth ions co-doped zinc aluminum silicate glass, to achieve the effects of optimized optoelectronic properties, uniform size, and simple equipment

Inactive Publication Date: 2011-10-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The high-temperature melting method is widely used because of simple equipment, simple reaction parameters and easy control of the reaction process, but usually the ZnO nanocrystals obtained in the crystal matrix require complex reaction processes to obtain

Method used

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  • Preparation method of zinc aluminum silicate glass codoped with zinc oxide nanocrystals and rare-earth ions
  • Preparation method of zinc aluminum silicate glass codoped with zinc oxide nanocrystals and rare-earth ions
  • Preparation method of zinc aluminum silicate glass codoped with zinc oxide nanocrystals and rare-earth ions

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Experimental program
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Effect test

Embodiment 1

[0016] 1) Put zinc oxide powder, silicon dioxide, aluminum oxide, potassium oxide and europium oxide into a mortar, mix well and pour into a crucible, zinc oxide powder, silicon dioxide, aluminum oxide, potassium oxide and europium oxide The mass ratio is 35:35.8:15.2:14:0.2;

[0017] 2) Put the crucible containing the batch material into a high-temperature furnace, raise the temperature to 1560°C at a heating rate of 10°C / min, and keep it for 2 hours to melt;

[0018] 3) The molten solution in step 2) was poured on a copper plate at 300°C to cool to room temperature, and then heat-treated at 650°C for 2 h to obtain a zinc-aluminosilicate glass co-doped with zinc oxide nanocrystals and rare earth ions.

[0019] The X-ray diffraction pattern of the product is shown in the curve (a) of Figure 1. It can be seen from the figure that the diffraction peaks of the sample are consistent with the standard pattern of zinc oxide with wurtzite structure, indicating that the obtained produ...

Embodiment 2

[0021] 1) Put zinc oxide powder, silicon dioxide, aluminum oxide, potassium oxide and erbium oxide into a mortar, mix well and pour into a crucible, zinc oxide powder, silicon dioxide, aluminum oxide, potassium oxide and erbium oxide The mass ratio is 35:35.8:15.2:14:0.2;

[0022] 2) Put the crucible containing the batch material into a high-temperature furnace, raise the temperature to 1560 °C at a heating rate of 7 °C / min, and keep it for 2 h to melt;

[0023] 3) The molten solution in step 2) was poured on a graphite plate at 500 °C to cool to room temperature, and then heat-treated at 700 °C for 2 h to obtain a zinc-aluminosilicate glass co-doped with zinc oxide nanocrystals and rare earth ions.

[0024] The X-ray diffraction pattern of the product is shown in Figure 1 curve (b), and its diffraction peaks are consistent with the standard pattern of wurtzite structure zinc oxide, indicating that the obtained product is a wurtzite structure zinc oxide nanocrystal. Calculate...

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Abstract

The present invention discloses a preparation method of zinc aluminum silicate glass codoped with zinc oxide nanocrystals and rare-earth ions, which comprises the following steps of: firstly uniformly mixing zinc oxide powder, silica, alumina, potassium oxide and rare earth oxide in a mortar, melting at a high temperature, cooling the molten liquid to room temperature, and carrying out heat treatment at the temperature of 600-700 DEG C to obtain the zinc aluminum silicate glass codoped with zinc oxide nanocrystals and rare-earth ions. The preparation method provided by the invention has the advantages of simple process, low cost of raw materials, no need for special equipment and simple equipment, and the preparation process is performed in air atmosphere. The preparation method generates ZnO nanocrystals in a zinc aluminum silicate glass matrix by heat treatment for the first time; the generated nanocrystal has uniform particle sizes and diameter of about 10 nm, and changes the structure of the glass matrix; and the interaction between the generated ZnO nanocrystals and rare-earth ions helps to optimize the photoelectric properties of the optical glass.

Description

technical field [0001] The invention relates to a method for preparing zinc-aluminosilicate glass, in particular to a method for preparing zinc-aluminosilicate glass co-doped with zinc oxide nanocrystals and rare earth ions. Background technique [0002] Zinc oxide is a new type of Ⅱ-Ⅵ group direct bandgap wide bandgap compound semiconductor material. There are usually three crystal forms, hexagonal wurtzite structure, cubic sphalerite structure, and the relatively rare sodium chloride formula 8 surface structure. In comparison, the wurtzite structure has the highest stability among the three, and it is also the most widely studied semiconductor metal oxide in the application of nanocrystals. It has excellent optical and electrical properties, and has excellent conditions for emitting blue light or near-ultraviolet light, so it is expected to develop a variety of light-emitting devices such as ultraviolet, green, and blue light. Compared with borate glass and phosphate gla...

Claims

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Application Information

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IPC IPC(8): C03C3/095
Inventor 赵高凌揭光涛巴赫拉姆·格弥韩高荣
Owner ZHEJIANG UNIV
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