GB1222859A - Luminescent materials - Google Patents
Luminescent materialsInfo
- Publication number
- GB1222859A GB1222859A GB59369/68A GB5936968A GB1222859A GB 1222859 A GB1222859 A GB 1222859A GB 59369/68 A GB59369/68 A GB 59369/68A GB 5936968 A GB5936968 A GB 5936968A GB 1222859 A GB1222859 A GB 1222859A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mix
- grm
- moles
- dec
- luminescent
- 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
- 239000000463 material Substances 0.000 title abstract 3
- 229910052693 Europium Inorganic materials 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- 229910004298 SiO 2 Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
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
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/77342—Silicates
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
- Laminated Bodies (AREA)
Abstract
1,222,859. Luminescent materials. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 Dec., 1968 [16 Dec., 1967], No. 59369/68. Heading C4S. A luminescent material of the sanbornite structure for luminescent screens as in LP and HAMV lamps for instance comprisesBa x Sr y Eu p . Si 2 O 5 wherein x+y+p=1, 0À40#y#0 and 0À10#p#0À005, preferably 0À05#p#0À01 the europium being divalent. When replacing Ba by Sr, y is preferably between 0À05 and 0À35. Excitation may be by long and short wavelength C.V. and deep-blue radiation with 505 nm. emission for y = 0 shifting to shorter wavelengths (e.g. 490 to 495 nm.) when Sr partly replaces Ba. In preparation, the starting mix is heated to 1100 to 1200 C. for 2 hours, cooled, ground and re-fired as before in a reducing atmosphere of carbon monoxide obtained by placing fine-grained carbon in the vicinity of the mix during heating. An excess of one of the constituents in the firing mix ensures a smooth reaction, the condition 0À80< < x+y+p< <- 1À10 being satisfied wherein x, y, p are the grm. moles of BaO, SrO and EuO per 2 grm. moles of SiO 2 in the starting mix. The starting mix preferably includes a fluoride of Ba Sr or Eu.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6717185A NL6717185A (en) | 1967-12-16 | 1967-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1222859A true GB1222859A (en) | 1971-02-17 |
Family
ID=19802008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB59369/68A Expired GB1222859A (en) | 1967-12-16 | 1968-12-13 | Luminescent materials |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4837716B1 (en) |
| AT (1) | AT281198B (en) |
| BE (1) | BE725562A (en) |
| CH (1) | CH508980A (en) |
| DE (1) | DE1810999C3 (en) |
| DK (1) | DK129463B (en) |
| FR (1) | FR1595133A (en) |
| GB (1) | GB1222859A (en) |
| NL (1) | NL6717185A (en) |
| NO (1) | NO125119B (en) |
| SE (1) | SE346325B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6093346A (en) * | 1997-03-26 | 2000-07-25 | Xiao; Zhiguo | Long afterglow silicate luminescent material and its manufacturing method |
| WO2007035026A1 (en) * | 2005-09-22 | 2007-03-29 | Korea Research Institute Of Chemical Technology | Silicate phosphor for uv and long-wavelength excitation and preparation method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7400223A (en) * | 1974-01-08 | 1975-07-10 | Philips Nv | LOW-PRESSURE MERCURY DISCHARGE LAMP. |
| EP0550937B1 (en) * | 1992-01-07 | 1997-03-19 | Koninklijke Philips Electronics N.V. | Low-pressure mercury discharge lamp |
| DE69215655T2 (en) * | 1992-01-07 | 1997-05-28 | Philips Electronics Nv | Low pressure mercury discharge lamp |
| DE19845302C2 (en) * | 1998-10-01 | 2002-12-05 | Uv Power Licht Gmbh | Fluorescent Lamp |
-
1967
- 1967-12-16 NL NL6717185A patent/NL6717185A/xx unknown
-
1968
- 1968-11-26 DE DE1810999A patent/DE1810999C3/en not_active Expired
- 1968-12-13 SE SE17130/68A patent/SE346325B/xx unknown
- 1968-12-13 AT AT1215068A patent/AT281198B/en not_active IP Right Cessation
- 1968-12-13 DK DK613768AA patent/DK129463B/en unknown
- 1968-12-13 GB GB59369/68A patent/GB1222859A/en not_active Expired
- 1968-12-13 NO NO5002/68A patent/NO125119B/no unknown
- 1968-12-13 CH CH1864668A patent/CH508980A/en not_active IP Right Cessation
- 1968-12-13 JP JP43091089A patent/JPS4837716B1/ja active Pending
- 1968-12-16 FR FR1595133D patent/FR1595133A/fr not_active Expired
- 1968-12-16 BE BE725562D patent/BE725562A/xx unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6093346A (en) * | 1997-03-26 | 2000-07-25 | Xiao; Zhiguo | Long afterglow silicate luminescent material and its manufacturing method |
| WO2007035026A1 (en) * | 2005-09-22 | 2007-03-29 | Korea Research Institute Of Chemical Technology | Silicate phosphor for uv and long-wavelength excitation and preparation method thereof |
| CN101273108B (en) * | 2005-09-22 | 2013-01-30 | 韩国化学研究院 | Silicate phosphor for uv and long-wavelength excitation and preparation method thereof |
| US8388863B2 (en) | 2005-09-22 | 2013-03-05 | Korea Research Institute Of Chemical Technology | Silicate phosphor for UV and long-wavelength excitation and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DK129463C (en) | 1975-03-03 |
| NO125119B (en) | 1972-07-17 |
| BE725562A (en) | 1969-06-16 |
| DE1810999B2 (en) | 1978-12-07 |
| SE346325B (en) | 1972-07-03 |
| DE1810999C3 (en) | 1979-08-09 |
| FR1595133A (en) | 1970-06-08 |
| NL6717185A (en) | 1969-06-18 |
| AT281198B (en) | 1970-05-11 |
| JPS4837716B1 (en) | 1973-11-13 |
| DE1810999A1 (en) | 1969-07-17 |
| DK129463B (en) | 1974-10-14 |
| CH508980A (en) | 1971-06-15 |
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