FR2045526A5 - Yttrium vanadate phosphor for use in colour - tv tubes and mercury vapour lamps - Google Patents

Yttrium vanadate phosphor for use in colour - tv tubes and mercury vapour lamps

Info

Publication number
FR2045526A5
FR2045526A5 FR7014301A FR7014301A FR2045526A5 FR 2045526 A5 FR2045526 A5 FR 2045526A5 FR 7014301 A FR7014301 A FR 7014301A FR 7014301 A FR7014301 A FR 7014301A FR 2045526 A5 FR2045526 A5 FR 2045526A5
Authority
FR
France
Prior art keywords
yttrium vanadate
mercury vapour
tubes
colour
phosphor
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
FR7014301A
Other languages
French (fr)
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.)
BAD LIEBENSTEIN LEUCHTSTOFFW
Original Assignee
BAD LIEBENSTEIN LEUCHTSTOFFW
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 BAD LIEBENSTEIN LEUCHTSTOFFW filed Critical BAD LIEBENSTEIN LEUCHTSTOFFW
Application granted granted Critical
Publication of FR2045526A5 publication Critical patent/FR2045526A5/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
    • C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
    • C09K11/7794—Vanadates; Chromates; Molybdates; Tungstates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

Yttrium vanadate phosphor is activated by europium and tin. Pref. that the tin is present in concentration of 1.10-3 - 1.10-6g. atoms per mole yttrium vanadate. Such phosphors give improve balance of the red, green and blue components with higher brightness in colour television tubes and improved red emission in mercury vapour lamps. Such a phosphor is prepared from 1000 g. Y2O3, 82 g. Eu2O3, 1130 g. NH4VO3 and 0.15 g. SnO2 by heating at 11-1300 degrees C, and extracting the melt with 10% ammonia, filtering, washing and drying.
FR7014301A 1969-04-18 1970-04-20 Yttrium vanadate phosphor for use in colour - tv tubes and mercury vapour lamps Expired FR2045526A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD13931469 1969-04-18

Publications (1)

Publication Number Publication Date
FR2045526A5 true FR2045526A5 (en) 1971-02-26

Family

ID=5481130

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7014301A Expired FR2045526A5 (en) 1969-04-18 1970-04-20 Yttrium vanadate phosphor for use in colour - tv tubes and mercury vapour lamps

Country Status (3)

Country Link
DE (1) DE2017691A1 (en)
FR (1) FR2045526A5 (en)
NL (1) NL7005590A (en)

Also Published As

Publication number Publication date
DE2017691A1 (en) 1971-12-16
NL7005590A (en) 1971-10-19

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Legal Events

Date Code Title Description
ST Notification of lapse