GB994390A - Magnesium orthostannate phosphors - Google Patents
Magnesium orthostannate phosphorsInfo
- Publication number
- GB994390A GB994390A GB4912062A GB4912062A GB994390A GB 994390 A GB994390 A GB 994390A GB 4912062 A GB4912062 A GB 4912062A GB 4912062 A GB4912062 A GB 4912062A GB 994390 A GB994390 A GB 994390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- manganese
- orthostannate
- phosphors
- magnesium
- mg2sno4
- 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
- C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
Abstract
The sensitivity to U.V. radiation of a manganese-activated magnesium ortho-stannate phosphor is improved by firing, e.g. at <\>t 2000 DEG F. in a reducing atmosphere. This reduces the manganese to Mn2+ and some at least of the tin to Sn2+ while retaining the f.c.c. Mg2SnO4 crystal structure. The reducing gas may be N2+H2, or steam and hydrogen, or NH3 or CO. The manganese may be present in 0.001-0.10, preferably 0.015-0.030 mole fraction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16388362A | 1962-01-02 | 1962-01-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB994390A true GB994390A (en) | 1965-06-10 |
Family
ID=22591994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4912062A Expired GB994390A (en) | 1962-01-02 | 1962-12-31 | Magnesium orthostannate phosphors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB994390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463950C (en) * | 2005-05-18 | 2009-02-25 | 中国科学院长春光学精密机械与物理研究所 | Manganese ion activated green long afterglow luminescent material and its preparation method |
-
1962
- 1962-12-31 GB GB4912062A patent/GB994390A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463950C (en) * | 2005-05-18 | 2009-02-25 | 中国科学院长春光学精密机械与物理研究所 | Manganese ion activated green long afterglow luminescent material and its preparation method |
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