KR100263304B1 - Phosphor composition - Google Patents
Phosphor composition Download PDFInfo
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- KR100263304B1 KR100263304B1 KR1019930003196A KR930003196A KR100263304B1 KR 100263304 B1 KR100263304 B1 KR 100263304B1 KR 1019930003196 A KR1019930003196 A KR 1019930003196A KR 930003196 A KR930003196 A KR 930003196A KR 100263304 B1 KR100263304 B1 KR 100263304B1
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- 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
- C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
- C09K11/661—Chalcogenides
- C09K11/662—Chalcogenides with zinc or cadmium
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Abstract
ZnS를 모체로 하여, 부활제로 Pbx, Cuy(상기한 x는 15.0 ×10-5≤ x ≤3 × 10-6이고 상기한 y는 10.0 × 10-5≤ y ≤ 3× 10-6이다)를 사용하고, 융제로서 NaCl 또는 NH4Cl를 사용하여 제조한 형광체는 한 종류의 형광체로만 청녹색 내지 황녹색에 이르는 색을 감지할 수 있는 형광체이다.Using ZnS as a parent, the activator is Pb x , Cu y (wherein x is 15.0 × 10 −5 ≦ x ≦ 3 × 10 −6 and y is 10.0 × 10 −5 ≦ y ≦ 3 × 10 −6 . Phosphors prepared using NaCl or NH 4 Cl as fluxes are phosphors capable of detecting colors ranging from blue green to yellow green with only one type of phosphor.
Description
도면은 본 발명에 따른 형광체 (a)와 종래의 형광체(b)의 발광광도를 비교한 그래프이다.Figure is a graph comparing the luminous intensity of the phosphor (a) and the conventional phosphor (b) according to the present invention.
본 발명은 형광체에 관한 것으로서, 더욱 상세하게는 청녹색으로부터 황녹색까지 발광할 수 있는 형광체 조성물에 관한 기술이다.The present invention relates to a phosphor, and more particularly, to a phosphor composition capable of emitting light from blue green to yellow green.
종래의 오실로스코프 및 형광표시관에 사용되는 저속전자선용 형광체로는 청녹색 발광형광체인 ZnS:Ag와 황녹색 발광형광체인 ZnS:Cu 두 종류의 형광체를 혼합한 조성물이 사용되어 왔으며 이들을 사용함으로써 청녹색부터 황녹색까지의 색을 나타내었다. 그러나 이와 같은 종래의 형광체는 청녹색 내지 황녹색의 색상을 넓은 폭으로 감지하기 위하여 두 종류의 형광체를 혼합하여야만 하는 불편함이 있었다.As a low-speed electron beam phosphor used in a conventional oscilloscope and fluorescent display tube, a mixture of two kinds of phosphors, ZnS: Ag, which is a blue-green light-emitting phosphor, and ZnS: Cu, which is a yellow-green light-emitting phosphor, has been used. The color to green was shown. However, such a conventional phosphor was inconvenient to mix two kinds of phosphors in order to detect a wide range of blue green to yellow green color.
본 발명은 상기와 같은 종래기술의 문제점을 해결하기 위하여 안출된 것으로서 본 발명의 목적은 서로 다른 종류의 형광체를 혼합함이 없이 청녹색 내지 황녹색에 이르는 다양한 색상을 감지할 수 형광체를 제공함에 있다.The present invention has been made to solve the above problems of the prior art, an object of the present invention is to provide a phosphor that can detect a variety of colors ranging from blue green to yellow green without mixing different kinds of phosphors.
상기와 같은 본 발명의 목적을 달성하기 위하여, 본 발명은 ZnS : Pbx, Cuy로 이루어진 형광체 조성물를 제공한다.In order to achieve the object of the present invention as described above, the present invention provides a phosphor composition consisting of ZnS: Pb x , Cu y .
본 발명에 있어서, 상기한 x는 15.0 ×10-5≤ x ≤3 × 10-6이고 상기한 y는 10.0 × 10-5≤ y ≤ 3× 10-6인 것이 바람직하다.In the present invention, it is preferable that x is 15.0 × 10 −5 ≦ x ≦ 3 × 10 −6 and y is 10.0 × 10 −5 ≦ y ≦ 3 × 10 −6 .
또한, 본 발명은 ZnS에 순수를 첨가하고 Pb, Cu 용액을 부활제로 첨가하한 뒤 교반하고, 건조시킨 뒤, 융제를 첨가 혼합시킨 후, Al2O3도가니에서 소성한는 것으로 이루어진 형광체의 제조방법에 있어서, 상기한 융제는 NaCl, NH4Cl로 이루어진 군에서 선택되는 것을 특징으로 하는 형광체의 제조방법을 제공한다.In addition, the present invention relates to a method for producing a phosphor comprising adding pure water to ZnS, adding a Pb and Cu solution as an activator, stirring, drying, adding and mixing a flux, and then firing in an Al 2 O 3 crucible. In the flux, NaCl, NH 4 Cl provides a method for producing a phosphor, characterized in that selected from the group consisting of.
상기한 바와 같이 본 발명의 형광체는 모체를 설퍼아연 (ZnS)를 사용하고, 부활제로서는 납 (Pb)을 사용하며, 공부활제로는 구리 (Cu)를 사용한다. 또한 이들을 이용하여 형광체를 제조할 때에 융제 (flux)로는 NaCl, NH4Cl을 사용하는 것이 바람직하며, 약간의 황 (S)을 추가로 첨가하여 소성하는 것이 더욱 바람직하다.As described above, the phosphor of the present invention uses sulfur zinc (ZnS) as the mother, lead (Pb) as the activator, and copper (Cu) as the active agent. In addition, it is preferable to use NaCl and NH 4 Cl as a flux when manufacturing fluorescent substance using these, and it is more preferable to add and add a little sulfur (S) and to bake.
제1도에 도시한 바와 같이 종래의 ZnS계 형광체의 주발광 피크는 520nm 였으나, 본 발명의 형광체는 주발광 피크가 540nm이다.As shown in FIG. 1, the main emission peak of the conventional ZnS-based phosphor was 520 nm, but the phosphor of the present invention has a main emission peak of 540 nm.
또, 본 발명의 형광체를 사용하여 주발광 피크(peak)인 540nm에서, 청녹색 내지 황녹색의 색상 중 원하는 색을 얻기 위해서는 상기한 부활제의 양을 조절하면 가능하다. 즉 상기한 부활제 중 납의 양이 구리의 양보다 많으면 청녹색이 되고, 반대로 상기한 구리의 양이 반의 양보다 많으면 황녹색이 된다.In addition, by using the phosphor of the present invention, in order to obtain a desired color among bluish green to yellowish green color at 540 nm which is the main emission peak, it is possible to adjust the amount of the above-mentioned activator. In other words, if the amount of lead in the activator is greater than the amount of copper, it becomes bluish green. On the contrary, if the amount of copper is more than half, it becomes yellowish green.
상기한 본 발명의 효과를 나타내는 실시예와 비교예를 기재하면 다음과 같다. 그러나 하기한 실시예는 본 발명의 바람직한 일 실시예일 뿐 본 발명이 하기한 실시예에 한정되는 것은 아니다.Examples and comparative examples showing the effects of the present invention described above are as follows. However, the following examples are only one preferred embodiment of the present invention and the present invention is not limited to the following examples.
[실시예 1]Example 1
순수 1ℓ에 Pb(NO3)21.6g을 용해시켜, 따로 순수 1ℓ에 Cu(NO3)22g을 용해시켜 1000ppm의 Pb 용액과 1000ppm의 Cu 용액을 제조하였다. 모체로서 ZnS 100g에 순수 60g을 넣고, 여기에 상기에서 준비한 1000ppm Pb 용액 15ml 즉 15ppm과 1000ppm Cu 용액 10ml 즉 10ppm을 첨가하여 교반시킨 후 건조로에서 120℃의 온도로 24시간 건조시켰다. 건조된 건조물에 NaCl 5g을 첨가하고 잘 혼합하여 Al2O3도가니에 넣은 뒤, 대기중에서 950℃의 온도로 2시간 소성하여 형광체를 제조하였다.1.6 g of Pb (NO 3 ) 2 was dissolved in 1 L of pure water, and 2 g of Cu (NO 3 ) 2 was dissolved in 1 L of pure water to prepare a 1000 ppm Pb solution and a 1000 ppm Cu solution. 60 g of pure water was added to 100 g of ZnS as a mother, and 15 ml of the 1000 ppm Pb solution prepared above, 15 ppm and 10 ml of 10 ppm or 10 ppm of 1000 ppm Cu solution, were stirred and dried at a temperature of 120 ° C. in a drying furnace for 24 hours. NaCl 5g was added to the dried product, mixed well, placed in an Al 2 O 3 crucible, and calcined at 950 ° C. for 2 hours in the air to prepare a phosphor.
[실시예 2∼6]EXAMPLES 2-6
상기한 실시예 1)에서 사용된 Pb와 Cu의 양이 하기한 (표 1)의 농도를 갖는 것을 사용한 것을 제외하고는 상기한 실시예 1)과 동일한 방법으로 실시하여 형광체를 제조하였다.A phosphor was prepared in the same manner as in Example 1), except that the amounts of Pb and Cu used in Example 1) were those having the concentrations shown in Table 1 below.
[비교예][Comparative Example]
상기한 실시예 1)에서 사용된 부활제인 Pb와 Cu를 첨가하지 않은 것을 제외하고는 상기한 실시예 1)과 동일한 방법으로 실시하여 형광체를 제조하였다.A phosphor was prepared in the same manner as in Example 1), except that Pb and Cu, which are activators used in Example 1), were not added.
[표 1]TABLE 1
상기한 실시예 1) - 6) 및 비교예에서 제조된 형광체의 특성을 주발광 피크, 색좌표, 발광색, Pb와 Cu의 비율로써 비교하여 (표 2)에 나타내었다.The properties of the phosphors prepared in Examples 1) to 6) and Comparative Examples are shown in Table 2 by comparing the main emission peak, the color coordinate, the emission color, and the ratio of Pb and Cu.
[표 2]TABLE 2
상기한 (표 2)에서 알 수 있는 바와 같이 본 발명에 따른 형광체의 주발광 피크는 540 nm이고, 발광색은 Pb의 양이 Cu의 양에 비하여 많을 경우 청녹색을 띠며, 반대로 Pb의 양이 Cu의 양에 비하여 적을 경우 황녹색을 띰을 알 수 있다. 이와 같은 결과를 비추어 볼 때 본 발명의 형광체 조성물은 두 개의 형광체의 혼합없이 한 종류의 형광체로만 청녹색 내지 황녹색에 이르는 색을 감지할 수 있는 형광체를 제공하는 형광체 조성물이다.As can be seen in Table 2, the main emission peak of the phosphor according to the present invention is 540 nm, and the emission color is bluish green when the amount of Pb is higher than that of Cu, and conversely, the amount of Pb is If it is less than the amount, it can be seen that yellowish green. In view of the above results, the phosphor composition of the present invention is a phosphor composition that provides a phosphor capable of detecting colors ranging from blue green to yellow green with only one kind of phosphor without mixing two phosphors.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019930003196A KR100263304B1 (en) | 1993-03-04 | 1993-03-04 | Phosphor composition |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019930003196A KR100263304B1 (en) | 1993-03-04 | 1993-03-04 | Phosphor composition |
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| KR940021699A KR940021699A (en) | 1994-10-19 |
| KR100263304B1 true KR100263304B1 (en) | 2000-08-01 |
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| KR1019930003196A Expired - Fee Related KR100263304B1 (en) | 1993-03-04 | 1993-03-04 | Phosphor composition |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5512142A (en) * | 1978-07-12 | 1980-01-28 | Dainippon Toryo Co Ltd | Radiographic image conversion method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5512142A (en) * | 1978-07-12 | 1980-01-28 | Dainippon Toryo Co Ltd | Radiographic image conversion method |
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