GB1003859A - Electroluminescent phosphors and process for making same - Google Patents

Electroluminescent phosphors and process for making same

Info

Publication number
GB1003859A
GB1003859A GB3442462A GB3442462A GB1003859A GB 1003859 A GB1003859 A GB 1003859A GB 3442462 A GB3442462 A GB 3442462A GB 3442462 A GB3442462 A GB 3442462A GB 1003859 A GB1003859 A GB 1003859A
Authority
GB
United Kingdom
Prior art keywords
per cent
mole per
making same
electroluminescent phosphors
cent copper
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
GB3442462A
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.)
Verizon Laboratories Inc
GTE LLC
Original Assignee
General Telephone and Electronics Corp
General Telephone and Electronics Laboratories 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 General Telephone and Electronics Corp, General Telephone and Electronics Laboratories Inc filed Critical General Telephone and Electronics Corp
Publication of GB1003859A publication Critical patent/GB1003859A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
    • H05B33/145—Arrangements of the electroluminescent material

Abstract

A red-emitting electroluminescent phosphor consists of mixed cubic and hexagonal crystalline phases of 5 to 50 mole per cent copper activated cadmium sulphide and 50 to 95 mole per cent copper activated zinc selenide. The mixture is fired in a self-generated atmosphere to a temperature within the range of 900 DEG to 1200 DEG C. A bromide coactivator may be added in the form of ammonium bromide. Five specific examples are given and in certain examples the material is stated to be also photoluminescent and in one example also slightly photoconductive.
GB3442462A 1961-09-26 1962-09-07 Electroluminescent phosphors and process for making same Expired GB1003859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14066161A 1961-09-26 1961-09-26

Publications (1)

Publication Number Publication Date
GB1003859A true GB1003859A (en) 1965-09-08

Family

ID=22492248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3442462A Expired GB1003859A (en) 1961-09-26 1962-09-07 Electroluminescent phosphors and process for making same

Country Status (1)

Country Link
GB (1) GB1003859A (en)

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