KR950030197A - Green phosphor - Google Patents

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Publication number
KR950030197A
KR950030197A KR1019940008326A KR19940008326A KR950030197A KR 950030197 A KR950030197 A KR 950030197A KR 1019940008326 A KR1019940008326 A KR 1019940008326A KR 19940008326 A KR19940008326 A KR 19940008326A KR 950030197 A KR950030197 A KR 950030197A
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KR
South Korea
Prior art keywords
washing
phosphors
green phosphor
hours
calcined
Prior art date
Application number
KR1019940008326A
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Korean (ko)
Inventor
박병호
Original Assignee
김형태
주식회사 우주통신
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Application filed by 김형태, 주식회사 우주통신 filed Critical 김형태
Priority to KR1019940008326A priority Critical patent/KR950030197A/en
Publication of KR950030197A publication Critical patent/KR950030197A/en

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    • 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
    • C09K11/7777—Phosphates
    • 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
    • C09K11/77742—Silicates
    • 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
    • C09K11/778—Borates

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

Abstract

삼파장 램프형광체중 녹색형광체로 특정 희토산화물과(HN4)2HPO4에 융제로 SiO2와 H3BO3와 Li2CO3를 첨가한 제조방법이다.It is a green phosphor among three wavelength lamp phosphors, and SiO 2 , H 3 BO 3 and Li 2 CO 3 are added as a flux to certain rare earth oxides and (HN 4 ) 2 HPO 4 .

그 화학식은(La1-x-y-zCexTby)2O3(1-m-n)P2O5zLi2O mSiO2nB2O3위식중 0.1≤x≤0.3, 0.1≤y≤0.2, 0≤z≤0.3, 0.01≤m≤0.1, 0.01≤n≤0.2이다.The formula is (La 1-xyz CexTby) 2 O 3 (1-mn) P 2 O 5 zLi 2 O mSiO 2 nB 2 O 3 in the formula 0.1≤x≤0.3, 0.1≤y≤0.2, 0≤z≤0.3 , 0.01 ≦ m ≦ 0.1, and 0.01 ≦ n ≦ 0.2.

위 형광체를 소성, 분쇄, 세척, 여과, 건조과정을 거쳐 제조했을 때 상대발광강도가 종래형광체보다 5%향상 되었고, 대기중 700∼800℃에서 10분간 열처리 할 경우 광속저하율이 8%이하였다.When the above phosphors were manufactured by calcination, crushing, washing, filtration, and drying, the relative luminescence intensity was improved by 5% compared to the conventional phosphors, and the luminous flux reduction rate was less than 8% when heat treated at 700 to 800 ° C. for 10 minutes.

최근 녹색형광체가(High Difinite) TV와 삼파장 형광램프에 적용되면서 상업화 대중화되면서 고연색성과 고효율성과 광속조하율이 낮은 제품을 요구하게 되었는데 이에 본 발명이 해결하였다.Recently, as green phosphors have been applied to high difinite TVs and three-wavelength fluorescent lamps, they have been required for products having high color rendering, high efficiency, and low luminous flux drop rate as commercialized and popularized products.

Description

녹색형광체Green phosphor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는(La0.8Ce0.1Tb0.1)PO4발광 강도와 온도와의 관계, 미첨가(x), 0.105mole Li+첨가(△), 0.013mole BO3-첨가한 경우(○), 제2도는(La0.8Ce0.1Tb0.1Li3x)PO4의 20℃와 200℃에서 상대발광 강도비와 Li+첨가량과의 관계, 제3도는(L0.8Ce0.1Tb0.1)(PO4)1-y(BO3)Y의 20℃와 200℃에서 상대발광 강도비와 BO3-첨가량과의 관계, 제4도는 본 발명 각종 조성 형광체의 파장에 따른 발광강도.1 shows (La 0.8 Ce 0.1 Tb 0.1 ) PO 4 emission intensity and temperature, no addition (x), 0.105 mole Li + addition (△), 0.013 mole BO 3- addition (○), 2 Figure (La 0.8 Ce 0.1 Tb 0.1 Li 3x ) The relationship between the relative emission intensity ratio and the amount of Li + addition at 20 ℃ and 200 ℃ of PO 4 , Figure 3 is (L 0.8 Ce 0.1 Tb 0.1 ) (PO 4 ) 1-y (BO 3 ) The relationship between the relative emission intensity ratio and the amount of BO 3 -addition at 20 ° C. and 200 ° C. of Y 3 , and FIG. 4 is a luminescence intensity according to the wavelength of various composition phosphors of the present invention.

Claims (3)

희토산화물(La2O3, CeO2, Tb4O7)과 (HN4)2HPO4를 원료로 LiCO3를 첨가하고 융제로 SiO2와 H3BO3와 Li2CO3를 첨가해서 고온으로 고상반응을 일으키는 것을 특징으로 하는 자외선을 조사할 때 발광하는 녹색형광체.Rare earth oxides (La 2 O 3 , CeO 2 , Tb 4 O 7 ) and (HN 4 ) 2 HPO 4 were added to LiCO 3 as a raw material and SiO 2 and H 3 BO 3 and Li 2 CO 3 were added as a flux Green phosphor that emits light when irradiated with ultraviolet light, characterized in that the solid phase reaction. 단, 화학식은(La1-x-y-zCexTby)2O3(1-m-n)P2O5zLi2O mSiO2nB2O3이고 0.1≤x≤0.3, 0.1≤y≤0.2, 0≤z≤0.3, 0.01≤m≤0.1, 0.01≤n≤0.2이다.However, the chemical formula is (La 1-xyz CexTby) 2 O 3 (1-mn) P 2 O 5 zLi 2 O mSiO 2 nB 2 O 3 and 0.1≤x≤0.3, 0.1≤y≤0.2, 0≤z≤0.3 , 0.01 ≦ m ≦ 0.1, and 0.01 ≦ n ≦ 0.2. 청구범위 제1항에 있어서, 고상반응조건은 1200∼1400℃의 약환원성 분위기에서 1∼4시간 소성하고 소성 후 약환원성 분위기에서 실온까지 냉각한 다음 분쇄, 세척, 여과 건조과정을 거치는 것을 특징으로 하는 고온(700∼800℃)에서 10분간 열처리 했을 때 열화율이 8%이하인 녹색형광체.The solid phase reaction conditions are calcined for 1 to 4 hours in a mildly reducing atmosphere of 1200 ~ 1400 ℃, after firing and cooling to room temperature in a slightly reducing atmosphere, characterized in that the grinding, washing, filtration drying process A green phosphor having a deterioration rate of 8% or less when thermally treated at a high temperature (700 to 800 ° C.) for 10 minutes. 희토산화물을 질산용액에 용해시킨 후 옥살산으로 적하하면서 pH2-4에서 공침시킨 후 세척하고 SiO2와 H3BO3를 융제로 LiCO3를 첨가하고 600℃에서 1-3시간 소성한 후 H3PO4용액(85%)와 반응시켜 건조한 다음 1200∼1400℃, 1-4시간 약환원성 분위기에서 소성하고, 세척, 분쇄, 여과, 분급과정을 거쳐 얻는 고온(700∼800℃)에서 10분간 열처리 했을 때 열화율이 8%이하인 녹색형광체.After washing was dropwise after dissolving the rare earth oxide in a nitric acid solution of oxalic acid co-precipitation at pH2-4, and the addition of LiCO 3 with the SiO 2 and H 3 BO 3, and flux calcined 1-3 hours at 600 ℃ H 3 PO 4 , reacted with solution (85%), dried, calcined at 1200∼1400 ℃ for 1-4 hours in mild reducing atmosphere, and heat-treated for 10 minutes at high temperature (700 ~ 800 ℃) obtained through washing, grinding, filtration and classification. When the phosphor has a deterioration rate of 8% or less. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임※ Note: The disclosure is based on the initial application.
KR1019940008326A 1994-04-20 1994-04-20 Green phosphor KR950030197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940008326A KR950030197A (en) 1994-04-20 1994-04-20 Green phosphor

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Application Number Priority Date Filing Date Title
KR1019940008326A KR950030197A (en) 1994-04-20 1994-04-20 Green phosphor

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KR950030197A true KR950030197A (en) 1995-11-24

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KR1019940008326A KR950030197A (en) 1994-04-20 1994-04-20 Green phosphor

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