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Ceramic composite material, manufacturing method thereof, and wavelength converter

A technology of ceramic composite material and ceramic body, which is applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of enlarged emitted light spot, lack of excitation light scattering, and reduced light collection efficiency, so as to improve product production efficiency and improve optical efficiency. The effect of improving conversion efficiency and reducing the difficulty of subsequent processing

Pending Publication Date: 2018-03-13
APPOTRONICS CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the prior art, known wavelength converters are usually used in transmission operations, and the ceramic materials used to manufacture wavelength converters are usually in a transparent or translucent state, lacking the scattering of excitation light, resulting in low light conversion efficiency
For example, for YAG:Ce single crystal or transparent ceramics, due to the lack of scattering centers, when a blue excitation light with a small spot is irradiated vertically on YAG:Ce single crystal or transparent ceramic sheet, the emitted light spot will expand, and because the ceramic exit surface The total reflection effect will cause a large part of the emitted light to exit from the side instead of exiting from the single crystal or the upper surface of the ceramic sheet, which will reduce the light collection efficiency to a certain extent

Method used

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  • Ceramic composite material, manufacturing method thereof, and wavelength converter
  • Ceramic composite material, manufacturing method thereof, and wavelength converter
  • Ceramic composite material, manufacturing method thereof, and wavelength converter

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preparation example Construction

[0044] In the preparation method of the prior art (such as CN101405368A), generally by changing the sintering temperature, sintering time, cosolvent, the pressure of the atmosphere during sintering to change the pore size and concentration of the luminescent ceramics, or by adding a pore phase forming agent to form stomata. In some prior art, the ceramic composite material containing the solid particles is obtained by sintering the solid particles together with the luminescent ceramic raw materials. However, no matter which method is used, the generated pores or solid particles are roughly uniformly distributed in the ceramic composite material. When it is necessary to polish and coat ceramic composite materials, uneven structures will inevitably be formed on the surface of ceramic composite materials, which greatly affects the quality of film formation.

[0045] Therefore, the present invention proposes to form ion implantation parts in the ceramic body by means of ion impla...

Embodiment 1

[0061] The ceramic body Ce:Gd obtained by sintering 3 al 5 o 12 Glue to the sample stage of the ion implanter with double-sided carbon conductive adhesive.

[0062] Aluminum and oxygen ions are co-implanted into the ceramic body 10 . In the ion implantation process, the implant dose is 5×1017 ions / cm 2 , with an injection rate of 1×10 13 ions / cm 2 / s, the ceramic body 10 is heated to 700°C of the ion implanter, with different energies, such as 6.0MeV, 6.1MeV, 6.2MeV, 6.3MeV, 6.4MeV, 6.5MeV, 6.6MeV, 6.7MeV, 6.8MeV, 6.9MeV , 7.0 MeV, ion implantation treatment is performed on the ceramic body 10 in sequence. Put the ion-implanted ceramic body 10 into an annealing furnace, and anneal at 400° C. for 3 hours under vacuum conditions to obtain a translucent ceramic composite material 100. The total volume of the ion-implanted parts 30 accounts for The score is 3%.

[0063] The calculated concentration of aluminum is 2c%, then the concentration of alumina molecules is c%. The...

Embodiment 2

[0067] The ceramic body Ce:Y obtained by sintering 3 Al 5 o 12 Glue to the sample stage of the ion implanter with double-sided carbon conductive adhesive.

[0068] Titanium and oxygen ions are co-implanted into the ceramic body 10 . In the ion implantation process, the implant dose is 5×10 17 ions / cm 2 , with an injection rate of 1×10 13 ions / cm 2 / s, heat the ceramic body 10 to 800°C with different energies, such as 6.0MeV, 6.1MeV, 6.2MeV, 6.3MeV, 6.4MeV, 6.5MeV, 6.6MeV, 6.7MeV, 6.8MeV, 6.9MeV, 7.0MeV , performing ion implantation treatment on the ceramic body 10 in sequence.

[0069] After the injection is completed, the ceramic body 10 is taken out, and the conductive carbon glue is removed. The average diameter of the ion implanted part 30 after the ion implantation treatment is 10-100 nm. Put the ion-implanted ceramic body 10 into an annealing furnace, and anneal at 1000° C. for 8 hours under vacuum conditions to obtain a translucent ceramic composite material 10...

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Abstract

Provided is a ceramic composite material, comprising a ceramic body. The ceramic body is luminescent ceramic in structure of cerium doped with garnet. Cerium is used as an optical active center of theceramic composite material. The ceramic composite material also includes a plurality of ion implantation components which are arranged at interval and distributed uniformly. The ion implantation component is formed and is held in the ceramic body through an ion implantation method. The internal of the ion implantation component is pores and / or solid particles. The pores contain at least one of hydrogen, nitrogen or rare gases. The solid particles are oxide particles whose optical absorption coefficient is lower than 0.01 cm<-1>. The invention also discloses a manufacturing method of the ceramic composite material, and a wavelength converter including the ceramic composite material. The ceramic composite material has relatively high light conversion efficiency.

Description

technical field [0001] The invention relates to the field of ceramic materials, in particular to a ceramic composite material, a preparation method of the ceramic composite material and a wavelength converter using the ceramic composite material. Background technique [0002] In the prior art, known wavelength converters are usually used in transmission operations, and the ceramic materials used to manufacture wavelength converters are usually in a transparent or translucent state, lacking scattering of excitation light, resulting in low light conversion efficiency. For example, for YAG:Ce single crystal or transparent ceramics, due to the lack of scattering centers, when a blue excitation light with a small spot is irradiated vertically on YAG:Ce single crystal or transparent ceramic sheet, the emitted light spot will expand, and because the ceramic exit surface The effect of total reflection will cause a large part of the emitted light to exit from the side instead of exit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/055
CPCG02F1/055G02F1/0551G02F1/0558
Inventor 张红秀郑鹏李屹
Owner APPOTRONICS CORP LTD
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