Title:
RARE EARTH LONG PERSISTENT LUMINESCENT FILM, PREPARATION METHOD, AND APPLICATION
Document Type and Number:
WIPO Patent Application WO/2022/262252
Kind Code:
A1
Abstract:
The present application relates to the technical field of materials, and specifically discloses a rare earth long persistent luminescent film, a preparation method, and an application. The raw materials for preparing the film comprise a dispersant, an organic solvent, a long persistent nanomaterial, and a substrate. The long persistent nanomaterial is β-NaLuF4:Ln@NaYF4. The preparation method is: uniformly mixing β-NaLuF4:Tb@NaYF4 particles with the organic solvent, and then mixing a mixture with the dispersant to obtain a mixture; and then, uniformly coating said mixture on a glass sheet, and curing at 60°C-300°C for 5-30 min to obtain the film. The film of the present application can be applied in the fields of biological diagnosis, medical clinical radiotherapy, and the like, especially clinical radiotherapy quantitative imaging, and has the advantages of stable long persistent luminescence, wide linear range, sensitive response, long imaging time window, and repeated excitation. In addition, the preparation method of the present application has the advantages of simple process route and simple operation.
Inventors:
ZHENG HAIRONG (CN)
SHENG ZONGHAI (CN)
HU DEHONG (CN)
SHENG ZONGHAI (CN)
HU DEHONG (CN)
Application Number:
PCT/CN2021/142577
Publication Date:
December 22, 2022
Filing Date:
December 29, 2021
Export Citation:
Assignee:
SHENZHEN INST ADV TECH (CN)
International Classes:
C09K11/02; C09J7/00; C09K11/85
Foreign References:
| CN112480925A | 2021-03-12 | |||
| CN102618180A | 2012-08-01 |
Other References:
OU XIANGYU; QIN XIAN; HUANG BOLONG; ZAN JIE; WU QINXIA; HONG ZHONGZHU; XIE LILI; BIAN HONGYU; YI ZHIGAO; CHEN XIAOFENG; WU YIMING;: "High-resolution X-ray luminescence extension imaging", NATURE, vol. 590, no. 7846, 1 January 1900 (1900-01-01), London, pages 410 - 415, XP037372149, ISSN: 0028-0836, DOI: 10.1038/s41586-021-03251-6
杨志平 等 (YANG, ZHIPING ET AL.): "用于胶片行业的一种长余辉荧光片 (Non-official translation: A Long Afterglow Fluorescent Sheet Used in Film Industry)", 河北大学学报(自然科学版) (JOURNAL OF HEBEI UNIVERSITY (NATURAL SCIENCE EDITION)), vol. 18, no. 1, 28 February 1998 (1998-02-28), ISSN: 1000-1565
杨志平 等 (YANG, ZHIPING ET AL.): "用于胶片行业的一种长余辉荧光片 (Non-official translation: A Long Afterglow Fluorescent Sheet Used in Film Industry)", 河北大学学报(自然科学版) (JOURNAL OF HEBEI UNIVERSITY (NATURAL SCIENCE EDITION)), vol. 18, no. 1, 28 February 1998 (1998-02-28), ISSN: 1000-1565
Attorney, Agent or Firm:
BEIJING WEIZHENG PATENT AGENCY CO., LTD. (CN)
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