GB749393A - Improvements in or relating to luminescent materials - Google Patents
Improvements in or relating to luminescent materialsInfo
- Publication number
- GB749393A GB749393A GB2638753A GB2638753A GB749393A GB 749393 A GB749393 A GB 749393A GB 2638753 A GB2638753 A GB 2638753A GB 2638753 A GB2638753 A GB 2638753A GB 749393 A GB749393 A GB 749393A
- Authority
- GB
- United Kingdom
- Prior art keywords
- atoms
- luminescent materials
- sept
- oxides
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/67—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing refractory metals
- C09K11/68—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing refractory metals containing chromium, molybdenum or tungsten
- C09K11/681—Chalcogenides
- C09K11/684—Chalcogenides with alkaline earth metals
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
- Luminescent Compositions (AREA)
Abstract
749,393. Luminescent materials. GENERAL ELECTRIC CO., Ltd. Sept. 23, 1954 [Sept. 24, 1953], No. 26387/53. Class 39 (1). Luminescent material consists of crystalline magnesium oxide containing in the crystal structure both chromium as an activator and at least one of lithium, sodium, potassium and thallium as an intensifier of the luminescence. The ratio of chromium atoms to magnesium atoms is from 0.01-1, preferably 0.05-0.5, per cent, and the ratio of the additional metal atoms to magnesium atoms is preferably 0.1-10 per cent. The material can be prepared by heating a mixture of the oxides, or compounds forming the oxides on heating, at a temperature in the range of 800-1200‹ C. in air for 1 hour or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2638753A GB749393A (en) | 1953-09-24 | 1953-09-24 | Improvements in or relating to luminescent materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2638753A GB749393A (en) | 1953-09-24 | 1953-09-24 | Improvements in or relating to luminescent materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB749393A true GB749393A (en) | 1956-05-23 |
Family
ID=10242835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2638753A Expired GB749393A (en) | 1953-09-24 | 1953-09-24 | Improvements in or relating to luminescent materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB749393A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115520894A (en) * | 2022-10-26 | 2022-12-27 | 中国科学院长春应用化学研究所 | Near-infrared luminescent material, preparation method thereof and luminescent device |
-
1953
- 1953-09-24 GB GB2638753A patent/GB749393A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115520894A (en) * | 2022-10-26 | 2022-12-27 | 中国科学院长春应用化学研究所 | Near-infrared luminescent material, preparation method thereof and luminescent device |
| CN115520894B (en) * | 2022-10-26 | 2024-02-13 | 中国科学院长春应用化学研究所 | Near infrared luminescent material, preparation method thereof and luminescent device |
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