GB1175573A - Improvements in or relating to Luminescent Compositions of Matter - Google Patents

Improvements in or relating to Luminescent Compositions of Matter

Info

Publication number
GB1175573A
GB1175573A GB03093/67A GB1309367A GB1175573A GB 1175573 A GB1175573 A GB 1175573A GB 03093/67 A GB03093/67 A GB 03093/67A GB 1309367 A GB1309367 A GB 1309367A GB 1175573 A GB1175573 A GB 1175573A
Authority
GB
United Kingdom
Prior art keywords
trivalent
amount
composition
microns
mixtures
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
Application number
GB03093/67A
Inventor
Joseph Edward Geusic
Leo Francis Johnson
Legrand Gerard Van Uitert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1175573A publication Critical patent/GB1175573A/en
Expired legal-status Critical Current

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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7774—Aluminates
    • 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
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Lasers (AREA)

Abstract

1,175,573. Luminescent materials. WESTERN ELECTRIC CO. Inc. 21 March, 1967 [1 April, 1966], No. 13093/67. Heading C4S. [Also in Division H1] Aluminescent composition includes trivalent Yb and trivalent Tm in an amount, of the cations present, of at least 0.6% Yb ions and at least 0À01% of Tm. Cr may be present in amount 0.1 to 1.0% of the cations present. A preferred composition is (M a Yb b Tm c )-Me 5 O 12 , where M may be Y, Gd, Lu or mixtures thereof, Me may be trivalent Ga and/or Al alone or in combination with Cr in an amount 0.16 to 1À6 atom per cent of the Ga and/or A1 and a+b+c= 3, a is 0 to 2.949, preferably 1.3 to 2.87, b is 0.05 to 2.999, preferably 0.1 to 1.5 and c is 0À0008 to 1.0, preferably 0À01 to 0.6. The composition may be used in a laser and a tungsten lamp operating at 3000‹ K is a preferred pump source. Exemplary environments include ABO 4 , where A is Ca, Sr, Ba or Pb; B is Mo or W; MC 2 O 6 where M is Y, Gd, La or mixtures thereof and C may be Ti, Sn, Si, Ge, or Zr; MDO 3 , where M is as above and D is Al, Ga, Sc, Lu, La, Y, Bo, Gd; and a garnet system such as YAG. In an embodiment, starting materials are heated to 1300‹ C. and cooled at ¢‹/hour to 950‹ C., the flux drained and crystals cooled to yield Y 2À47 Yb 0À5 Tm 0À03 Al 5 O 12 emitting at 1.88 and 2.01 microns at liquid nitrogen temperature and 2.01 microns at room temperature.
GB03093/67A 1966-04-01 1967-03-21 Improvements in or relating to Luminescent Compositions of Matter Expired GB1175573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53946166A 1966-04-01 1966-04-01

Publications (1)

Publication Number Publication Date
GB1175573A true GB1175573A (en) 1969-12-23

Family

ID=24151316

Family Applications (1)

Application Number Title Priority Date Filing Date
GB03093/67A Expired GB1175573A (en) 1966-04-01 1967-03-21 Improvements in or relating to Luminescent Compositions of Matter

Country Status (4)

Country Link
US (1) US3500232A (en)
DE (1) DE1614998A1 (en)
FR (1) FR1514831A (en)
GB (1) GB1175573A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0700980A1 (en) * 1994-03-17 1996-03-13 Hitachi Maxell, Ltd. Phosphor, phosphor composition, fluorescent mark carrier, and optical character reader

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894846A (en) * 1973-02-07 1975-07-15 Hitachi Ltd Method of producing single crystals of gadolinium molybdate family
US4757232A (en) * 1985-01-16 1988-07-12 American Telephone And Telegraph Company, At&T Bell Laboratories Visual display system comprising epitaxial terbium-activated garnet material
FR2599733B1 (en) * 1986-06-10 1988-08-26 Centre Nat Rech Scient MIXED LANTHANIDE-MAGNESIUM GALLATES, LASER USING SINGLE CRYSTALS OF THESE GALLATES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3405371A (en) * 1963-08-07 1968-10-08 Bell Telephone Labor Inc Fluorescent garnet compositions and optical maser devices utilizing such compositions
NL135101C (en) * 1964-05-14

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0700980A1 (en) * 1994-03-17 1996-03-13 Hitachi Maxell, Ltd. Phosphor, phosphor composition, fluorescent mark carrier, and optical character reader
EP0700980A4 (en) * 1994-03-17 1996-12-18 Hitachi Maxell Phosphor, phosphor composition, fluorescent mark carrier, and optical character reader
EP0931823A2 (en) * 1994-03-17 1999-07-28 Hitachi Maxell, Ltd. Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor
US5932139A (en) * 1994-03-17 1999-08-03 Hitachi Maxell, Ltd. Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader thereof
EP0931823A3 (en) * 1994-03-17 2000-06-21 Hitachi Maxell, Ltd. Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor
US6303929B1 (en) 1994-03-17 2001-10-16 Hitachi Maxell, Ltd. Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor
US6436314B1 (en) 1994-03-17 2002-08-20 Hitachi Maxell, Ltd. Particulate fluorescent substance
US6458294B2 (en) 1994-03-17 2002-10-01 Hitachi Maxell, Ltd. Fluorescent ink compositions
US6471887B2 (en) 1994-03-17 2002-10-29 Hitachi Maxell, Ltd. Neodymium, ytterbium and/or erbium containing organic fluorescent compositions
US6688789B2 (en) 1994-03-17 2004-02-10 Hitachi Maxell, Ltd. Fluorescent substance, fluorescent composition, fluorescent mark carrier and optical reader therefor

Also Published As

Publication number Publication date
US3500232A (en) 1970-03-10
FR1514831A (en) 1968-02-23
DE1614998A1 (en) 1971-01-14

Similar Documents

Publication Publication Date Title
GB1519314A (en) Partially stabilized zirconia
GB1353204A (en) Treatment of refractory materials to improve their corrosion resistance
GB1270592A (en) Improvements in and relating to thermistors
GB1105199A (en) Metallo-ceramic compositions for protection of metallic surfaces
GB1175573A (en) Improvements in or relating to Luminescent Compositions of Matter
GB1156199A (en) Improvements in or relating to Dielectric Materials with a Stable Dielectric Constant at High Temperature
GB1266787A (en)
GB999564A (en) Luminescent materials
GB1131551A (en) Improvements in or relating to refractory compositions
US3531421A (en) Ceramic component for electrodes
DE767316C (en) Titanium dioxide masses
GB1158639A (en) Ceramic Potting Compounds
GB1066453A (en) Ferrimagnetic compositions
GB1137080A (en) Solid electrolytes
US3114714A (en) Ferromagnetic material
GB1176297A (en) Laser Glass Compositions
GB1076643A (en) Method of growing garnet crystals
US3117935A (en) Ferromagnetic material
JPS6421818A (en) Thin film type superconductive element
Komarovska et al. Crystal Structure and Magnetic Susceptibility of REM--Cu--Sn Compounds
GB1184773A (en) Piezoelectric Ceramic Materials
GB1060778A (en) Optical rotation medium
GB1137576A (en) Improvements in yttrium orthovanadate phosphor
JPS6427118A (en) Film type superconductive element
GB1082373A (en) Improvements relating to luminescent materials

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees