Title:
MOLYBDATE LUMINESCENT CERAMIC MATERIAL FOR LASER DISPLAY, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/110747
Kind Code:
A1
Abstract:
Disclosed are a molybdate luminescent ceramic material for laser display, a preparation method therefor and use thereof, belonging to the technical field of special ceramics preparation process for laser display. The method comprises: mixing an alkali metal halide and an alkali metal carbonate, weighing molybdenum oxide and europium oxide according to a molar ratio, and performing mixing, grinding, pressing, calcination and grinding to prepare a molybdate powder sample; heating and stirring a PVB adhesive to prepare a clear PVB adhesive solution; and sieving the molybdate powder material, adding the PVB adhesive solution, and grinding under an ultraviolet lamp until the PVB adhesive is cured, and performing pressing and calcination to prepare a ceramic sheet. The ceramic sheet of the present invention has a high absorption rate under the excitation of blue light lasers at 464 nm, good luminous efficiency, a high colour purity, good monochromaticity, and good thermal conductivity and back scattering performance; and has a relatively narrow-band emission peak at 614 nm (red), and can be used in the field of laser display ceramics.
Inventors:
YE SHI (CN)
YANG RUIRUI (CN)
LI MAN (CN)
ZHANG QINYUAN (CN)
YANG RUIRUI (CN)
LI MAN (CN)
ZHANG QINYUAN (CN)
Application Number:
PCT/CN2021/097960
Publication Date:
June 02, 2022
Filing Date:
June 02, 2021
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
C04B35/50; C04B35/495; C04B35/622; C09K11/86
Foreign References:
| CN112500161A | 2021-03-16 | |||
| CN102585831A | 2012-07-18 | |||
| CN101298561A | 2008-11-05 | |||
| CN1462789A | 2003-12-24 | |||
| CN106800930A | 2017-06-06 | |||
| CN110724529A | 2020-01-24 | |||
| CN103897697A | 2014-07-02 | |||
| CN104804742A | 2015-07-29 | |||
| CN107345135A | 2017-11-14 | |||
| CN110294627A | 2019-10-01 | |||
| CN104891967A | 2015-09-09 |
Other References:
WANG, J. ; JING, X. ; YAN, C. ; LIN, J. ; LIAO, F.: "Influence of fluoride on f-f transitions of Eu^3^+ in LiEuM"2O"8 (M=Mo, W)", JOURNAL OF LUMINESCENCE, ELSEVIER BV NORTH-HOLLAND, NL, vol. 121, no. 1, 1 November 2006 (2006-11-01), NL , pages 57 - 61, XP028045350, ISSN: 0022-2313, DOI: 10.1016/j.jlumin.2005.10.003
Attorney, Agent or Firm:
YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
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