FR2303060A1 - Preparation of luminescent materials - by two stage heating of mixture of orthophosphoric acid-trivalent metal oxide to form metal pentaphosphate - Google Patents

Preparation of luminescent materials - by two stage heating of mixture of orthophosphoric acid-trivalent metal oxide to form metal pentaphosphate

Info

Publication number
FR2303060A1
FR2303060A1 FR7606534A FR7606534A FR2303060A1 FR 2303060 A1 FR2303060 A1 FR 2303060A1 FR 7606534 A FR7606534 A FR 7606534A FR 7606534 A FR7606534 A FR 7606534A FR 2303060 A1 FR2303060 A1 FR 2303060A1
Authority
FR
France
Prior art keywords
ions
trivalent
pentaphosphate
mixture
preparation
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.)
Granted
Application number
FR7606534A
Other languages
French (fr)
Other versions
FR2303060B3 (en
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.)
Max Planck Gesellschaft zur Foerderung der Wissenschaften eV
Original Assignee
Max Planck Gesellschaft zur Foerderung der Wissenschaften eV
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
Priority claimed from GB966475A external-priority patent/GB1525303A/en
Priority claimed from GB966575A external-priority patent/GB1527232A/en
Application filed by Max Planck Gesellschaft zur Foerderung der Wissenschaften eV filed Critical Max Planck Gesellschaft zur Foerderung der Wissenschaften eV
Publication of FR2303060A1 publication Critical patent/FR2303060A1/en
Application granted granted Critical
Publication of FR2303060B3 publication Critical patent/FR2303060B3/fr
Granted 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
    • C09K11/7709—Phosphates

Landscapes

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

Abstract

Luminescent material consists essentially of a cpd. of formula XP5O14 (where X is a trivalent ion; or a mixt. of trivalent ions). It is used in cathode ray tubes, light emitting diodes, gas discharge tubes, i.r. quartum detectors, reinforces for X-ray images, electron microscopes, and devices for converting an i.r. image into a visible image; and gives images with a good resolution power, higher light power and shorter quenching time, e.g. 12 nanoseconds. It can be produced in the form of a solid matrix having inherent luminescent places, e.g. when X is Eu or Tb, or in the form of an inert matrix, e.g. when X is Y or Pr, contg. doping ions, e.g. Tm, Er, Eu or Tb ions. Materials having a wide range of properties can be produced. These show no reduction of the light emitting power when the concn. of active places is increased above a predefined value.
FR7606534A 1975-03-07 1976-03-08 Preparation of luminescent materials - by two stage heating of mixture of orthophosphoric acid-trivalent metal oxide to form metal pentaphosphate Granted FR2303060A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB966475A GB1525303A (en) 1975-03-07 1975-03-07 Phosphor devices
GB966575A GB1527232A (en) 1975-03-07 1975-03-07 Scintillator materials

Publications (2)

Publication Number Publication Date
FR2303060A1 true FR2303060A1 (en) 1976-10-01
FR2303060B3 FR2303060B3 (en) 1978-12-15

Family

ID=26243084

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7606534A Granted FR2303060A1 (en) 1975-03-07 1976-03-08 Preparation of luminescent materials - by two stage heating of mixture of orthophosphoric acid-trivalent metal oxide to form metal pentaphosphate

Country Status (4)

Country Link
JP (1) JPS51119389A (en)
DE (1) DE2607888A1 (en)
FR (1) FR2303060A1 (en)
NL (1) NL7602318A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736062B1 (en) * 1995-06-28 1997-09-19 Rhone Poulenc Chimie USE AS A LUMINOPHORE IN PLASMA SYSTEMS OF A COMPOUND BASED ON A RARE EARTH PHOSPHATE
JP2006152034A (en) * 2004-11-25 2006-06-15 Koito Mfg Co Ltd Red luminescent phosphor and luminescent module using the same
US7605373B2 (en) * 2006-12-01 2009-10-20 General Electric Company Scintillator compositions containing cerium and praseodymium activator ions, and related methods and articles of manufacture

Also Published As

Publication number Publication date
DE2607888A1 (en) 1976-09-30
NL7602318A (en) 1976-09-09
JPS51119389A (en) 1976-10-19
FR2303060B3 (en) 1978-12-15

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