GB1360690A - Luminescent materials - Google Patents
Luminescent materialsInfo
- Publication number
- GB1360690A GB1360690A GB1474772A GB1474772A GB1360690A GB 1360690 A GB1360690 A GB 1360690A GB 1474772 A GB1474772 A GB 1474772A GB 1474772 A GB1474772 A GB 1474772A GB 1360690 A GB1360690 A GB 1360690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prepared
- luminescent materials
- hexafluoromanganate
- titanate
- rays
- 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
- C09K11/0827—Halogenides
- C09K11/0833—Halogenides with alkali or alkaline earth metals
Abstract
1360690 Luminescent materials and uses thereof GENERAL ELECTRIC CO Ltd 16 Feb 1973 [29 March 1972] 14747/72 Heading C4S An artificial luminescent material consists of M(R 1 Mn)F 6 , where M is valency 2 and is one or more of Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, Zn, Cd and/or the ammonium radical, R is one or more of Si, Ti and Ge, and M is tetravalent Mn as activator in the form MnF 6 <SP>2-</SP> so as to be excitable by long and/or short wavelength U.V. (i.e. # 3000 Š), cathode-rays and/or X-rays. The materials are of cubic and hexagonal systems. In the formula M(R 1-x Mn x )F 6 , x may be 10<SP>-5</SP> to 0À5 or higher. In preparation, the hexa-fluorosilicate, and/or -titanate and/or -germanate of the metal(s) M is mixed with a hexafluoromanganate of a metal M in an aqueous hydrofluoric acid solution, the solution being evaporated to dryness. The host salt may be as commercially available or prepared by reacting carbonates and oxides with a fluorinating agent. The hexafluoromanganate may be prepared from a manganate or permanganate. Alternatively, the luminescent materials may be prepared by mixing chlorides of the metals M, R and fluorinated by exposure to flowing fluorine gas either alone or mixed with inert gas (e.g. N or Ar) at 300 to 1000‹ C. Detailed preparations of potassium hexafluorosilicomanganate, K 2 Si 0À6 Mn 0À4 F 6 and potassium hexafluoromangano-titanate, K 2 Ti 0À99 Mn 0À01 F 6 are included, the latter quenching at 180‹ C. UV excitation produces narrow band red emissions, e.g. K 2 Si 0À6 Mn 0À4 F 6 emits at 629 and 634 nm. and 584, 613 and 645-647 nm., luminescence persisting up to 200‹ C. and of increasing brightness with temperature in some cases. Low and high pressure Hg lamp applications are instanced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1474772A GB1360690A (en) | 1973-02-16 | 1973-02-16 | Luminescent materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1474772A GB1360690A (en) | 1973-02-16 | 1973-02-16 | Luminescent materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1360690A true GB1360690A (en) | 1974-07-17 |
Family
ID=10046780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1474772A Expired GB1360690A (en) | 1973-02-16 | 1973-02-16 | Luminescent materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1360690A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8252613B1 (en) | 2011-03-23 | 2012-08-28 | General Electric Company | Color stable manganese-doped phosphors |
US20140320788A1 (en) * | 2011-12-16 | 2014-10-30 | Koninklijke Philips N.V. | Mn-activated hexafluorosilicates for led applications |
US8906724B2 (en) | 2013-03-15 | 2014-12-09 | General Electric Company | Color stable red-emitting phosphors |
WO2015027202A1 (en) | 2013-08-22 | 2015-02-26 | General Electric Company | Processes for preparing color stable manganese-doped phosphors |
WO2015089345A1 (en) | 2013-12-13 | 2015-06-18 | General Electric Company | Processes for preparing color stable manganese-doped complex fluoride phosphors |
US20150361335A1 (en) * | 2014-06-12 | 2015-12-17 | General Electric Company | Red-emitting phosphors and associated devices |
US20160024378A1 (en) * | 2014-07-22 | 2016-01-28 | General Electric Company | Red-emitting phosphors, associated processes and devices |
US9371481B2 (en) | 2014-06-12 | 2016-06-21 | General Electric Company | Color stable red-emitting phosphors |
US9376615B2 (en) | 2014-06-12 | 2016-06-28 | General Electric Company | Color stable red-emitting phosphors |
US9385282B2 (en) | 2014-06-12 | 2016-07-05 | General Electric Company | Color stable red-emitting phosphors |
CN105950143A (en) * | 2016-05-24 | 2016-09-21 | 张书生 | Red phosphor, preparation method thereof and light emitting device using red phosphor |
US9512356B2 (en) | 2014-05-01 | 2016-12-06 | General Electric Company | Process for preparing red-emitting phosphors |
US9546318B2 (en) | 2014-05-01 | 2017-01-17 | General Electric Company | Process for preparing red-emitting phosphors |
US9580648B2 (en) | 2013-03-15 | 2017-02-28 | General Electric Company | Color stable red-emitting phosphors |
US9871173B2 (en) | 2015-06-18 | 2018-01-16 | Cree, Inc. | Light emitting devices having closely-spaced broad-spectrum and narrow-spectrum luminescent materials and related methods |
WO2018034774A1 (en) * | 2016-08-19 | 2018-02-22 | General Electric Company | Purified potassium hexafluoromanganate and methods for purifying potassium hexafluoromanganate |
US9929319B2 (en) | 2014-06-13 | 2018-03-27 | General Electric Company | LED package with red-emitting phosphors |
US9982190B2 (en) | 2015-02-20 | 2018-05-29 | General Electric Company | Color stable red-emitting phosphors |
US10047286B2 (en) | 2014-10-27 | 2018-08-14 | General Electric Company | Color stable red-emitting phosphors |
US10230022B2 (en) | 2014-03-13 | 2019-03-12 | General Electric Company | Lighting apparatus including color stable red emitting phosphors and quantum dots |
US10541353B2 (en) | 2017-11-10 | 2020-01-21 | Cree, Inc. | Light emitting devices including narrowband converters for outdoor lighting applications |
CN116200193A (en) * | 2023-01-18 | 2023-06-02 | 大连工业大学 | Mn (Mn) 4+ Activation K 0.6 Ba 0.7 Si 0.5 Ge 0.5 F 6 Preparation of red fluorescent powder and application of red fluorescent powder in warm white light LED |
-
1973
- 1973-02-16 GB GB1474772A patent/GB1360690A/en not_active Expired
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8252613B1 (en) | 2011-03-23 | 2012-08-28 | General Electric Company | Color stable manganese-doped phosphors |
US8710487B2 (en) | 2011-03-23 | 2014-04-29 | General Electric Company | Color stable manganese-doped phosphors |
US20140320788A1 (en) * | 2011-12-16 | 2014-10-30 | Koninklijke Philips N.V. | Mn-activated hexafluorosilicates for led applications |
US9422471B2 (en) * | 2011-12-16 | 2016-08-23 | Koninklijke Philips N.V. | Mn-activated hexafluorosilicates for LED applications |
US10153406B2 (en) | 2011-12-16 | 2018-12-11 | Lumileds Llc | Mn-activated hexafluorosilicates for LED applications |
US8906724B2 (en) | 2013-03-15 | 2014-12-09 | General Electric Company | Color stable red-emitting phosphors |
US11098246B2 (en) | 2013-03-15 | 2021-08-24 | Current Lighting Solutions, Llc | Color stable red-emitting phosphors |
EP2970765B1 (en) * | 2013-03-15 | 2019-05-08 | General Electric Company | Color stable red-emitting phosphors |
US9698314B2 (en) | 2013-03-15 | 2017-07-04 | General Electric Company | Color stable red-emitting phosphors |
US9580648B2 (en) | 2013-03-15 | 2017-02-28 | General Electric Company | Color stable red-emitting phosphors |
WO2015027202A1 (en) | 2013-08-22 | 2015-02-26 | General Electric Company | Processes for preparing color stable manganese-doped phosphors |
US9399732B2 (en) | 2013-08-22 | 2016-07-26 | General Electric Company | Processes for preparing color stable manganese-doped phosphors |
WO2015089345A1 (en) | 2013-12-13 | 2015-06-18 | General Electric Company | Processes for preparing color stable manganese-doped complex fluoride phosphors |
US9388336B2 (en) | 2013-12-13 | 2016-07-12 | General Electric Company | Processes for preparing color stable manganese-doped complex fluoride phosphors |
US10230022B2 (en) | 2014-03-13 | 2019-03-12 | General Electric Company | Lighting apparatus including color stable red emitting phosphors and quantum dots |
US9512356B2 (en) | 2014-05-01 | 2016-12-06 | General Electric Company | Process for preparing red-emitting phosphors |
US9546318B2 (en) | 2014-05-01 | 2017-01-17 | General Electric Company | Process for preparing red-emitting phosphors |
US20150361335A1 (en) * | 2014-06-12 | 2015-12-17 | General Electric Company | Red-emitting phosphors and associated devices |
US9567516B2 (en) * | 2014-06-12 | 2017-02-14 | General Electric Company | Red-emitting phosphors and associated devices |
CN106459754A (en) * | 2014-06-12 | 2017-02-22 | 通用电气公司 | Red-emitting phosphors and associated devices |
CN106459754B (en) * | 2014-06-12 | 2020-01-07 | 通用电气公司 | Red-emitting phosphors and related devices |
US9385282B2 (en) | 2014-06-12 | 2016-07-05 | General Electric Company | Color stable red-emitting phosphors |
US9371481B2 (en) | 2014-06-12 | 2016-06-21 | General Electric Company | Color stable red-emitting phosphors |
US9376615B2 (en) | 2014-06-12 | 2016-06-28 | General Electric Company | Color stable red-emitting phosphors |
US9929319B2 (en) | 2014-06-13 | 2018-03-27 | General Electric Company | LED package with red-emitting phosphors |
AU2015294337B2 (en) * | 2014-07-22 | 2018-10-18 | Current Lightning Solutions, LLC | Red-emitting phosphors, associated processes and devices |
US9512357B2 (en) * | 2014-07-22 | 2016-12-06 | General Electric Company | Red-emitting phosphors, associated processes and devices |
US20160024378A1 (en) * | 2014-07-22 | 2016-01-28 | General Electric Company | Red-emitting phosphors, associated processes and devices |
US10047286B2 (en) | 2014-10-27 | 2018-08-14 | General Electric Company | Color stable red-emitting phosphors |
US9982190B2 (en) | 2015-02-20 | 2018-05-29 | General Electric Company | Color stable red-emitting phosphors |
US10109773B2 (en) | 2015-06-18 | 2018-10-23 | Cree, Inc. | Light-emitting devices having closely-spaced broad-spectrum and narrow-spectrum luminescent materials and related methods |
US9871173B2 (en) | 2015-06-18 | 2018-01-16 | Cree, Inc. | Light emitting devices having closely-spaced broad-spectrum and narrow-spectrum luminescent materials and related methods |
CN105950143A (en) * | 2016-05-24 | 2016-09-21 | 张书生 | Red phosphor, preparation method thereof and light emitting device using red phosphor |
WO2018034774A1 (en) * | 2016-08-19 | 2018-02-22 | General Electric Company | Purified potassium hexafluoromanganate and methods for purifying potassium hexafluoromanganate |
JP2019526521A (en) * | 2016-08-19 | 2019-09-19 | ゼネラル・エレクトリック・カンパニイ | Purified potassium hexafluoromanganate and method for purifying potassium hexafluoromanganate |
CN109562956A (en) * | 2016-08-19 | 2019-04-02 | 通用电气公司 | The method of the potassium hexafluoromanganate and purifying potassium hexafluoromanganate of purifying |
CN109562956B (en) * | 2016-08-19 | 2022-05-24 | 通用电气公司 | Purified potassium hexafluoromanganate and method for purifying potassium hexafluoromanganate |
US11702348B2 (en) | 2016-08-19 | 2023-07-18 | Current Lighting Solutions, Llc | Purified potassium hexafluoromanganate and methods for purifying potassium hexafluoromanganate |
US10541353B2 (en) | 2017-11-10 | 2020-01-21 | Cree, Inc. | Light emitting devices including narrowband converters for outdoor lighting applications |
CN116200193A (en) * | 2023-01-18 | 2023-06-02 | 大连工业大学 | Mn (Mn) 4+ Activation K 0.6 Ba 0.7 Si 0.5 Ge 0.5 F 6 Preparation of red fluorescent powder and application of red fluorescent powder in warm white light LED |
CN116200193B (en) * | 2023-01-18 | 2024-01-26 | 大连工业大学 | Mn (Mn) 4+ Activation K 0.6 Ba 0.7 Si 0.5 Ge 0.5 F 6 Preparation of red fluorescent powder and application of red fluorescent powder in warm white light LED |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |