JPS57145174A - El fluorescent substance and preparation of same - Google Patents

El fluorescent substance and preparation of same

Info

Publication number
JPS57145174A
JPS57145174A JP56029930A JP2993081A JPS57145174A JP S57145174 A JPS57145174 A JP S57145174A JP 56029930 A JP56029930 A JP 56029930A JP 2993081 A JP2993081 A JP 2993081A JP S57145174 A JPS57145174 A JP S57145174A
Authority
JP
Japan
Prior art keywords
zinc sulfide
fluorescent substance
copper
ammonium bromide
sulfide
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
JP56029930A
Other languages
Japanese (ja)
Other versions
JPS6144912B2 (en
Inventor
Yoshio Ito
Katsuhiko Hirabayashi
Hiroshi Murase
Katsumi Kato
Toshio Moriguchi
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.)
Nichia Chemical Industries Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Nichia Chemical Industries Ltd
Nippon Telegraph and Telephone Corp
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 Nichia Chemical Industries Ltd, Nippon Telegraph and Telephone Corp filed Critical Nichia Chemical Industries Ltd
Priority to JP56029930A priority Critical patent/JPS57145174A/en
Publication of JPS57145174A publication Critical patent/JPS57145174A/en
Publication of JPS6144912B2 publication Critical patent/JPS6144912B2/ja
Granted legal-status Critical Current

Links

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  • Luminescent Compositions (AREA)

Abstract

PURPOSE: To obtain an EL fluorescent substance with high luminance and prolonged life, by calcining zinc sulfide mixed with specified amounts of copper acetate and ammonium bromide in an atmosphere contg. hydrogen sufdide.
CONSTITUTION: An EL fluorescent substance consisting of zinc sulfide, 0.1W 0.5mol% copper and 0.05W0.5mol% bromine, each based on zinc sulfide is prepd. by calcining a mixt. consisting of zinc sulfide, 0.15W1.5mol% copper acetate and 0.15W24mol% ammonium bromide, each based on zinc sulfide, in an atmosphere contg. hydrogen sulfide. An excess amt. of copper acetate is used because it partially enters a crystal and the rest sticks on the surface of the crystal and is then washed off. A relatively large amt. of ammonium bromide is used as a flux because fromine easily sublimes and more difficultly enters the fluorescent substance than copper. Calcination is carried out in an atmosphere contg. hydrogen sulfide to prevent deterioration of the crystallizability.
COPYRIGHT: (C)1982,JPO&Japio
JP56029930A 1981-03-04 1981-03-04 El fluorescent substance and preparation of same Granted JPS57145174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56029930A JPS57145174A (en) 1981-03-04 1981-03-04 El fluorescent substance and preparation of same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56029930A JPS57145174A (en) 1981-03-04 1981-03-04 El fluorescent substance and preparation of same

Publications (2)

Publication Number Publication Date
JPS57145174A true JPS57145174A (en) 1982-09-08
JPS6144912B2 JPS6144912B2 (en) 1986-10-04

Family

ID=12289701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56029930A Granted JPS57145174A (en) 1981-03-04 1981-03-04 El fluorescent substance and preparation of same

Country Status (1)

Country Link
JP (1) JPS57145174A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6248261B1 (en) * 1998-08-26 2001-06-19 Kabushiki Kaisha Toshiba Electroluminescent phosphor and electroluminescent element using the same
JP2004506864A (en) * 2000-08-11 2004-03-04 ポール　ミュラー　カンパニー Bimetal tube of heat exchanger of ice machine
JP2008214461A (en) * 2007-03-02 2008-09-18 Canon Inc Phosphor film and phosphor film production method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH039511U (en) * 1989-06-12 1991-01-29

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6248261B1 (en) * 1998-08-26 2001-06-19 Kabushiki Kaisha Toshiba Electroluminescent phosphor and electroluminescent element using the same
JP2004506864A (en) * 2000-08-11 2004-03-04 ポール　ミュラー　カンパニー Bimetal tube of heat exchanger of ice machine
JP2008214461A (en) * 2007-03-02 2008-09-18 Canon Inc Phosphor film and phosphor film production method

Also Published As

Publication number Publication date
JPS6144912B2 (en) 1986-10-04

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